From a6f38d944df86b90923556320bd5222d9764eda1 Mon Sep 17 00:00:00 2001
From: Shanicky Chen <peng@singularity-data.com>
Date: Tue, 13 Jun 2023 16:30:40 +0800
Subject: [PATCH 01/12] feat: Add revision for rescheduling process (#10199)

Signed-off-by: Shanicky Chen <peng@risingwave-labs.com>
---
 proto/meta.proto                          |  3 +
 src/ctl/src/cmd_impl/meta/cluster_info.rs |  3 +
 src/ctl/src/cmd_impl/meta/reschedule.rs   | 21 +++++-
 src/ctl/src/lib.rs                        | 11 ++-
 src/meta/src/barrier/command.rs           | 10 +--
 src/meta/src/manager/catalog/fragment.rs  | 83 +++++++++++++++++++----
 src/meta/src/manager/catalog/mod.rs       | 25 ++++++-
 src/meta/src/rpc/ddl_controller.rs        |  2 +
 src/meta/src/rpc/service/scale_service.rs | 23 ++++++-
 src/meta/src/stream/scale.rs              | 54 ++++++++++++++-
 src/meta/src/stream/stream_manager.rs     |  3 +
 src/rpc_client/src/meta_client.rs         | 13 +++-
 src/tests/simulation/src/ctl_ext.rs       | 14 ++++
 13 files changed, 234 insertions(+), 31 deletions(-)

diff --git a/proto/meta.proto b/proto/meta.proto
index 6d48e49945381..d70eb321f64c8 100644
--- a/proto/meta.proto
+++ b/proto/meta.proto
@@ -325,6 +325,7 @@ message GetClusterInfoResponse {
   repeated TableFragments table_fragments = 2;
   map<uint32, source.ConnectorSplits> actor_splits = 3;
   map<uint32, catalog.Source> source_infos = 4;
+  uint64 revision = 5;
 }
 
 message RescheduleRequest {
@@ -334,10 +335,12 @@ message RescheduleRequest {
   }
   // reschedule plan for each fragment
   map<uint32, Reschedule> reschedules = 1;
+  uint64 revision = 2;
 }
 
 message RescheduleResponse {
   bool success = 1;
+  uint64 revision = 2;
 }
 
 service ScaleService {
diff --git a/src/ctl/src/cmd_impl/meta/cluster_info.rs b/src/ctl/src/cmd_impl/meta/cluster_info.rs
index d2c7303467533..ff50f37c5d842 100644
--- a/src/ctl/src/cmd_impl/meta/cluster_info.rs
+++ b/src/ctl/src/cmd_impl/meta/cluster_info.rs
@@ -37,6 +37,7 @@ pub async fn source_split_info(context: &CtlContext) -> anyhow::Result<()> {
         source_infos: _,
         table_fragments,
         mut actor_splits,
+        revision: _,
     } = get_cluster_info(context).await?;
 
     for table_fragment in &table_fragments {
@@ -79,6 +80,7 @@ pub async fn cluster_info(context: &CtlContext) -> anyhow::Result<()> {
         table_fragments,
         actor_splits: _,
         source_infos: _,
+        revision,
     } = get_cluster_info(context).await?;
 
     // Fragment ID -> [Parallel Unit ID -> (Parallel Unit, Actor)]
@@ -167,6 +169,7 @@ pub async fn cluster_info(context: &CtlContext) -> anyhow::Result<()> {
     }
 
     println!("{table}");
+    println!("Revision: {}", revision);
 
     Ok(())
 }
diff --git a/src/ctl/src/cmd_impl/meta/reschedule.rs b/src/ctl/src/cmd_impl/meta/reschedule.rs
index 41117f7ff65e7..a5aa4c099cf56 100644
--- a/src/ctl/src/cmd_impl/meta/reschedule.rs
+++ b/src/ctl/src/cmd_impl/meta/reschedule.rs
@@ -52,7 +52,12 @@ const RESCHEDULE_ADDED_KEY: &str = "added";
 //         removed_parallel_units: [],
 //     },
 // }
-pub async fn reschedule(context: &CtlContext, mut plan: String, dry_run: bool) -> Result<()> {
+pub async fn reschedule(
+    context: &CtlContext,
+    mut plan: String,
+    dry_run: bool,
+    revision: u64,
+) -> Result<()> {
     let meta_client = context.meta_client().await?;
 
     let regex = Regex::new(RESCHEDULE_MATCH_REGEXP)?;
@@ -114,8 +119,18 @@ pub async fn reschedule(context: &CtlContext, mut plan: String, dry_run: bool) -
 
     if !dry_run {
         println!("---------------------------");
-        let resp = meta_client.reschedule(reschedules).await?;
-        println!("Response from meta {}", resp);
+        let (success, revision) = meta_client.reschedule(reschedules, revision).await?;
+
+        if !success {
+            println!(
+                "Reschedule failed, please check the plan or the revision, current revision is {}",
+                revision
+            );
+
+            return Err(anyhow!("reschedule failed"));
+        }
+
+        println!("Reschedule success, current revision is {}", revision);
     }
 
     Ok(())
diff --git a/src/ctl/src/lib.rs b/src/ctl/src/lib.rs
index 30b2a30d75569..952c90a6594da 100644
--- a/src/ctl/src/lib.rs
+++ b/src/ctl/src/lib.rs
@@ -218,6 +218,9 @@ enum MetaCommands {
         /// Show the plan only, no actual operation
         #[clap(long)]
         dry_run: bool,
+        /// Revision of the plan
+        #[clap(long)]
+        revision: u64,
     },
     /// backup meta by taking a meta snapshot
     BackupMeta,
@@ -348,9 +351,11 @@ pub async fn start_impl(opts: CliOpts, context: &CtlContext) -> Result<()> {
         Commands::Meta(MetaCommands::SourceSplitInfo) => {
             cmd_impl::meta::source_split_info(context).await?
         }
-        Commands::Meta(MetaCommands::Reschedule { plan, dry_run }) => {
-            cmd_impl::meta::reschedule(context, plan, dry_run).await?
-        }
+        Commands::Meta(MetaCommands::Reschedule {
+            plan,
+            dry_run,
+            revision,
+        }) => cmd_impl::meta::reschedule(context, plan, dry_run, revision).await?,
         Commands::Meta(MetaCommands::BackupMeta) => cmd_impl::meta::backup_meta(context).await?,
         Commands::Meta(MetaCommands::DeleteMetaSnapshots { snapshot_ids }) => {
             cmd_impl::meta::delete_meta_snapshots(context, &snapshot_ids).await?
diff --git a/src/meta/src/barrier/command.rs b/src/meta/src/barrier/command.rs
index 55e148560a9ec..046f60b97bdf1 100644
--- a/src/meta/src/barrier/command.rs
+++ b/src/meta/src/barrier/command.rs
@@ -116,7 +116,9 @@ pub enum Command {
     ///
     /// Barriers from which actors should be collected, and the post behavior of this command are
     /// very similar to `Create` and `Drop` commands, for added and removed actors, respectively.
-    RescheduleFragment(HashMap<FragmentId, Reschedule>),
+    RescheduleFragment {
+        reschedules: HashMap<FragmentId, Reschedule>,
+    },
 
     /// `ReplaceTable` command generates a `Update` barrier with the given `merge_updates`. This is
     /// essentially switching the downstream of the old table fragments to the new ones, and
@@ -159,7 +161,7 @@ impl Command {
             Command::CancelStreamingJob(table_fragments) => {
                 CommandChanges::DropTables(std::iter::once(table_fragments.table_id()).collect())
             }
-            Command::RescheduleFragment(reschedules) => {
+            Command::RescheduleFragment { reschedules, .. } => {
                 let to_add = reschedules
                     .values()
                     .flat_map(|r| r.added_actors.iter().copied())
@@ -319,7 +321,7 @@ where
                 }))
             }
 
-            Command::RescheduleFragment(reschedules) => {
+            Command::RescheduleFragment { reschedules, .. } => {
                 let mut dispatcher_update = HashMap::new();
                 for (_fragment_id, reschedule) in reschedules.iter() {
                     for &(upstream_fragment_id, dispatcher_id) in
@@ -613,7 +615,7 @@ where
                     .await;
             }
 
-            Command::RescheduleFragment(reschedules) => {
+            Command::RescheduleFragment { reschedules } => {
                 let mut node_dropped_actors = HashMap::new();
                 for table_fragments in self.fragment_manager.list_table_fragments().await? {
                     for fragment_id in table_fragments.fragments.keys() {
diff --git a/src/meta/src/manager/catalog/fragment.rs b/src/meta/src/manager/catalog/fragment.rs
index 5a83a537b84d5..8565b054ff898 100644
--- a/src/meta/src/manager/catalog/fragment.rs
+++ b/src/meta/src/manager/catalog/fragment.rs
@@ -36,17 +36,18 @@ use tokio::sync::{RwLock, RwLockReadGuard};
 
 use crate::barrier::Reschedule;
 use crate::manager::cluster::WorkerId;
-use crate::manager::{commit_meta, MetaSrvEnv};
+use crate::manager::{commit_meta, commit_meta_with_trx, MetaSrvEnv};
 use crate::model::{
     ActorId, BTreeMapTransaction, FragmentId, MetadataModel, MigrationPlan, TableFragments,
     ValTransaction,
 };
 use crate::storage::{MetaStore, Transaction};
-use crate::stream::SplitAssignment;
+use crate::stream::{SplitAssignment, TableRevision};
 use crate::MetaResult;
 
 pub struct FragmentManagerCore {
     table_fragments: BTreeMap<TableId, TableFragments>,
+    table_revision: TableRevision,
 }
 
 impl FragmentManagerCore {
@@ -102,9 +103,14 @@ where
             .map(|tf| (tf.table_id(), tf))
             .collect();
 
+        let table_revision = TableRevision::get(env.meta_store()).await?;
+
         Ok(Self {
             env,
-            core: RwLock::new(FragmentManagerCore { table_fragments }),
+            core: RwLock::new(FragmentManagerCore {
+                table_fragments,
+                table_revision,
+            }),
         })
     }
 
@@ -118,6 +124,10 @@ where
         Ok(map.values().cloned().collect())
     }
 
+    pub async fn get_revision(&self) -> TableRevision {
+        self.core.read().await.table_revision
+    }
+
     pub async fn has_any_table_fragments(&self) -> bool {
         !self.core.read().await.table_fragments.is_empty()
     }
@@ -246,7 +256,9 @@ where
         dummy_table_id: TableId,
         merge_updates: &[MergeUpdate],
     ) -> MetaResult<()> {
-        let map = &mut self.core.write().await.table_fragments;
+        let mut guard = self.core.write().await;
+        let current_revision = guard.table_revision;
+        let map = &mut guard.table_fragments;
 
         let mut table_fragments = BTreeMapTransaction::new(map);
 
@@ -317,7 +329,17 @@ where
         assert!(merge_updates.is_empty());
 
         // Commit changes and notify about the changes.
-        commit_meta!(self, table_fragments)?;
+        let mut trx = Transaction::default();
+
+        // save next revision
+        let next_revision = current_revision.next();
+        next_revision.store(&mut trx);
+
+        // commit
+        commit_meta_with_trx!(self, trx, table_fragments)?;
+
+        // update revision in memory
+        guard.table_revision = next_revision;
 
         // FIXME: Do not notify frontend currently, because frontend nodes might refer to old table
         // catalog and need to access the old fragment. Let frontend nodes delete the old fragment
@@ -347,7 +369,10 @@ where
     /// Drop table fragments info and remove downstream actor infos in fragments from its dependent
     /// tables.
     pub async fn drop_table_fragments_vec(&self, table_ids: &HashSet<TableId>) -> MetaResult<()> {
-        let map = &mut self.core.write().await.table_fragments;
+        let mut guard = self.core.write().await;
+        let current_revision = guard.table_revision;
+
+        let map = &mut guard.table_fragments;
         let to_delete_table_fragments = table_ids
             .iter()
             .filter_map(|table_id| map.get(table_id).cloned())
@@ -385,7 +410,16 @@ where
                     });
             }
         }
-        commit_meta!(self, table_fragments)?;
+
+        if table_ids.is_empty() {
+            commit_meta!(self, table_fragments)?;
+        } else {
+            let mut trx = Transaction::default();
+            let next_revision = current_revision.next();
+            next_revision.store(&mut trx);
+            commit_meta_with_trx!(self, trx, table_fragments)?;
+            guard.table_revision = next_revision;
+        }
 
         for table_fragments in to_delete_table_fragments {
             if table_fragments.state() != State::Initial {
@@ -452,11 +486,19 @@ where
             }
             if updated {
                 table_fragment.update_vnode_mapping(&migration_plan.parallel_unit_plan);
-                let map = &mut self.core.write().await.table_fragments;
+                let mut guard = self.core.write().await;
+                let current_revision = guard.table_revision;
+                let map = &mut guard.table_fragments;
                 if map.contains_key(&table_fragment.table_id()) {
-                    let mut txn = BTreeMapTransaction::new(map);
-                    txn.insert(table_fragment.table_id(), table_fragment.clone());
-                    commit_meta!(self, txn)?;
+                    let mut table_trx = BTreeMapTransaction::new(map);
+                    table_trx.insert(table_fragment.table_id(), table_fragment.clone());
+
+                    let next_revision = current_revision.next();
+                    let mut trx = Transaction::default();
+                    next_revision.store(&mut trx);
+                    commit_meta_with_trx!(self, trx, table_trx)?;
+                    guard.table_revision = next_revision;
+
                     self.notify_fragment_mapping(&table_fragment, Operation::Update)
                         .await;
                 }
@@ -606,7 +648,10 @@ where
         &self,
         mut reschedules: HashMap<FragmentId, Reschedule>,
     ) -> MetaResult<()> {
-        let map = &mut self.core.write().await.table_fragments;
+        let mut guard = self.core.write().await;
+        let current_version = guard.table_revision;
+
+        let map = &mut guard.table_fragments;
 
         fn update_actors(
             actors: &mut Vec<ActorId>,
@@ -821,7 +866,19 @@ where
         }
 
         assert!(reschedules.is_empty(), "all reschedules must be applied");
-        commit_meta!(self, table_fragments)?;
+
+        // new empty transaction
+        let mut trx = Transaction::default();
+
+        // save next revision
+        let next_revision = current_version.next();
+        next_revision.store(&mut trx);
+
+        // commit
+        commit_meta_with_trx!(self, trx, table_fragments)?;
+
+        // update revision in memory
+        guard.table_revision = next_revision;
 
         for mapping in fragment_mapping_to_notify {
             self.env
diff --git a/src/meta/src/manager/catalog/mod.rs b/src/meta/src/manager/catalog/mod.rs
index a204885281024..da8f2aa812ff5 100644
--- a/src/meta/src/manager/catalog/mod.rs
+++ b/src/meta/src/manager/catalog/mod.rs
@@ -86,10 +86,33 @@ macro_rules! commit_meta {
         }
     };
 }
-pub(crate) use commit_meta;
+
+/// `commit_meta_with_trx` is similar to `commit_meta`, but it accepts an external trx (transaction)
+/// and commits it.
+macro_rules! commit_meta_with_trx {
+    ($manager:expr, $trx:ident, $($val_txn:expr),*) => {
+        {
+            async {
+                // Apply the change in `ValTransaction` to trx
+                $(
+                    $val_txn.apply_to_txn(&mut $trx)?;
+                )*
+                // Commit to meta store
+                $manager.env.meta_store().txn($trx).await?;
+                // Upon successful commit, commit the change to in-mem meta
+                $(
+                    $val_txn.commit();
+                )*
+                MetaResult::Ok(())
+            }.await
+        }
+    };
+}
+
 use risingwave_common::util::column_index_mapping::ColIndexMapping;
 use risingwave_pb::meta::relation::RelationInfo;
 use risingwave_pb::meta::{CreatingJobInfo, Relation, RelationGroup};
+pub(crate) use {commit_meta, commit_meta_with_trx};
 
 use crate::manager::catalog::utils::{
     alter_relation_rename, alter_relation_rename_refs, refcnt_dec_connection,
diff --git a/src/meta/src/rpc/ddl_controller.rs b/src/meta/src/rpc/ddl_controller.rs
index c2fb0ca5dc3fd..a63c81b78bd69 100644
--- a/src/meta/src/rpc/ddl_controller.rs
+++ b/src/meta/src/rpc/ddl_controller.rs
@@ -288,6 +288,7 @@ where
     }
 
     async fn drop_streaming_job(&self, job_id: StreamingJobId) -> MetaResult<NotificationVersion> {
+        let _streaming_job_lock = self.stream_manager.streaming_job_lock.lock().await;
         let table_fragments = self
             .fragment_manager
             .select_table_fragments_by_table_id(&job_id.id().into())
@@ -561,6 +562,7 @@ where
         fragment_graph: StreamFragmentGraphProto,
         table_col_index_mapping: ColIndexMapping,
     ) -> MetaResult<NotificationVersion> {
+        let _streaming_job_lock = self.stream_manager.streaming_job_lock.lock().await;
         let env = StreamEnvironment::from_protobuf(fragment_graph.get_env().unwrap());
 
         let fragment_graph = self
diff --git a/src/meta/src/rpc/service/scale_service.rs b/src/meta/src/rpc/service/scale_service.rs
index 27d5a24d835b9..d69a9f69ac349 100644
--- a/src/meta/src/rpc/service/scale_service.rs
+++ b/src/meta/src/rpc/service/scale_service.rs
@@ -85,6 +85,8 @@ where
         &self,
         _: Request<GetClusterInfoRequest>,
     ) -> Result<Response<GetClusterInfoResponse>, Status> {
+        let _streaming_job_lock = self.stream_manager.streaming_job_lock.lock().await;
+
         let table_fragments = self
             .fragment_manager
             .list_table_fragments()
@@ -117,11 +119,14 @@ where
 
         let source_infos = sources.into_iter().map(|s| (s.id, s)).collect();
 
+        let revision = self.fragment_manager.get_revision().await.inner();
+
         Ok(Response::new(GetClusterInfoResponse {
             worker_nodes,
             table_fragments,
             actor_splits,
             source_infos,
+            revision,
         }))
     }
 
@@ -132,6 +137,17 @@ where
     ) -> Result<Response<RescheduleResponse>, Status> {
         let req = request.into_inner();
 
+        let _streaming_job_lock = self.stream_manager.streaming_job_lock.lock().await;
+
+        let current_revision = self.fragment_manager.get_revision().await;
+
+        if req.revision != current_revision.inner() {
+            return Ok(Response::new(RescheduleResponse {
+                success: false,
+                revision: current_revision.inner(),
+            }));
+        }
+
         self.stream_manager
             .reschedule_actors(
                 req.reschedules
@@ -162,6 +178,11 @@ where
             )
             .await?;
 
-        Ok(Response::new(RescheduleResponse { success: true }))
+        let next_revision = self.fragment_manager.get_revision().await;
+
+        Ok(Response::new(RescheduleResponse {
+            success: true,
+            revision: next_revision.into(),
+        }))
     }
 }
diff --git a/src/meta/src/stream/scale.rs b/src/meta/src/stream/scale.rs
index 874b7070bf907..5f274d438bb3a 100644
--- a/src/meta/src/stream/scale.rs
+++ b/src/meta/src/stream/scale.rs
@@ -39,9 +39,54 @@ use uuid::Uuid;
 use crate::barrier::{Command, Reschedule};
 use crate::manager::{IdCategory, WorkerId};
 use crate::model::{ActorId, DispatcherId, FragmentId, TableFragments};
-use crate::storage::MetaStore;
+use crate::storage::{MetaStore, MetaStoreError, Transaction, DEFAULT_COLUMN_FAMILY};
 use crate::stream::GlobalStreamManager;
-use crate::MetaResult;
+use crate::{MetaError, MetaResult};
+
+#[derive(Copy, Clone, Debug)]
+pub struct TableRevision(u64);
+
+const TABLE_REVISION_KEY: &[u8] = b"table_revision";
+
+impl From<TableRevision> for u64 {
+    fn from(value: TableRevision) -> Self {
+        value.0
+    }
+}
+
+impl TableRevision {
+    pub async fn get<S>(store: &S) -> MetaResult<Self>
+    where
+        S: MetaStore,
+    {
+        let version = match store
+            .get_cf(DEFAULT_COLUMN_FAMILY, TABLE_REVISION_KEY)
+            .await
+        {
+            Ok(byte_vec) => memcomparable::from_slice(&byte_vec).unwrap(),
+            Err(MetaStoreError::ItemNotFound(_)) => 0,
+            Err(e) => return Err(MetaError::from(e)),
+        };
+
+        Ok(Self(version))
+    }
+
+    pub fn next(&self) -> Self {
+        TableRevision(self.0 + 1)
+    }
+
+    pub fn store(&self, txn: &mut Transaction) {
+        txn.put(
+            DEFAULT_COLUMN_FAMILY.to_string(),
+            TABLE_REVISION_KEY.to_vec(),
+            memcomparable::to_vec(&self.0).unwrap(),
+        );
+    }
+
+    pub fn inner(&self) -> u64 {
+        self.0
+    }
+}
 
 #[derive(Debug)]
 pub struct ParallelUnitReschedule {
@@ -557,6 +602,7 @@ where
             }
             return Err(e);
         }
+
         Ok(())
     }
 
@@ -1127,7 +1173,9 @@ where
         tracing::debug!("reschedule plan: {:#?}", reschedule_fragment);
 
         self.barrier_scheduler
-            .run_command_with_paused(Command::RescheduleFragment(reschedule_fragment))
+            .run_command_with_paused(Command::RescheduleFragment {
+                reschedules: reschedule_fragment,
+            })
             .await?;
 
         Ok(())
diff --git a/src/meta/src/stream/stream_manager.rs b/src/meta/src/stream/stream_manager.rs
index 281a6a9376727..d4a48aebcffbf 100644
--- a/src/meta/src/stream/stream_manager.rs
+++ b/src/meta/src/stream/stream_manager.rs
@@ -171,6 +171,8 @@ pub struct GlobalStreamManager<S: MetaStore> {
     creating_job_info: CreatingStreamingJobInfoRef,
 
     hummock_manager: HummockManagerRef<S>,
+
+    pub(crate) streaming_job_lock: Mutex<()>,
 }
 
 impl<S> GlobalStreamManager<S>
@@ -193,6 +195,7 @@ where
             source_manager,
             hummock_manager,
             creating_job_info: Arc::new(CreatingStreamingJobInfo::default()),
+            streaming_job_lock: Mutex::new(()),
         })
     }
 
diff --git a/src/rpc_client/src/meta_client.rs b/src/rpc_client/src/meta_client.rs
index 39651136b5bbe..a30ae91d0904d 100644
--- a/src/rpc_client/src/meta_client.rs
+++ b/src/rpc_client/src/meta_client.rs
@@ -667,10 +667,17 @@ impl MetaClient {
         Ok(resp)
     }
 
-    pub async fn reschedule(&self, reschedules: HashMap<u32, PbReschedule>) -> Result<bool> {
-        let request = RescheduleRequest { reschedules };
+    pub async fn reschedule(
+        &self,
+        reschedules: HashMap<u32, PbReschedule>,
+        revision: u64,
+    ) -> Result<(bool, u64)> {
+        let request = RescheduleRequest {
+            reschedules,
+            revision,
+        };
         let resp = self.inner.reschedule(request).await?;
-        Ok(resp.success)
+        Ok((resp.success, resp.revision))
     }
 
     pub async fn risectl_get_pinned_versions_summary(
diff --git a/src/tests/simulation/src/ctl_ext.rs b/src/tests/simulation/src/ctl_ext.rs
index 432d0ceb04a25..cb285a09de3e8 100644
--- a/src/tests/simulation/src/ctl_ext.rs
+++ b/src/tests/simulation/src/ctl_ext.rs
@@ -291,6 +291,18 @@ impl Cluster {
     pub async fn reschedule(&mut self, plan: impl Into<String>) -> Result<()> {
         let plan = plan.into();
 
+        let revision = self
+            .ctl
+            .spawn(async move {
+                let r = risingwave_ctl::cmd_impl::meta::get_cluster_info(
+                    &risingwave_ctl::common::CtlContext::default(),
+                )
+                .await?;
+
+                Ok::<_, anyhow::Error>(r.revision)
+            })
+            .await??;
+
         self.ctl
             .spawn(async move {
                 let opts = risingwave_ctl::CliOpts::parse_from([
@@ -299,6 +311,8 @@ impl Cluster {
                     "reschedule",
                     "--plan",
                     plan.as_ref(),
+                    "--revision",
+                    &format!("{}", revision),
                 ]);
                 risingwave_ctl::start(opts).await
             })

From 54c660b93768b1842eadba6c27f4c453f8ec871e Mon Sep 17 00:00:00 2001
From: lmatz <lmatz823@gmail.com>
Date: Tue, 13 Jun 2023 16:57:07 +0800
Subject: [PATCH 02/12] chore: remove enable_stream_row_count config (#10261)

---
 src/common/src/config.rs                 | 10 -------
 src/config/example.toml                  |  1 -
 src/stream/src/executor/wrapper.rs       | 36 ++++--------------------
 src/stream/src/executor/wrapper/trace.rs | 26 +++++++----------
 src/stream/src/task/stream_manager.rs    |  1 -
 5 files changed, 15 insertions(+), 59 deletions(-)

diff --git a/src/common/src/config.rs b/src/common/src/config.rs
index de7a647a23068..f6cf68165f192 100644
--- a/src/common/src/config.rs
+++ b/src/common/src/config.rs
@@ -459,12 +459,6 @@ serde_with::with_prefix!(batch_prefix "batch_");
 /// It is put at [`StreamingConfig::developer`].
 #[derive(Clone, Debug, Serialize, Deserialize, DefaultFromSerde)]
 pub struct StreamingDeveloperConfig {
-    /// Set to true to enable per-executor row count metrics. This will produce a lot of timeseries
-    /// and might affect the prometheus performance. If you only need actor input and output
-    /// rows data, see `stream_actor_in_record_cnt` and `stream_actor_out_record_cnt` instead.
-    #[serde(default = "default::developer::stream_enable_executor_row_count")]
-    pub enable_executor_row_count: bool,
-
     /// The capacity of the chunks in the channel that connects between `ConnectorSource` and
     /// `SourceExecutor`.
     #[serde(default = "default::developer::connector_message_buffer_size")]
@@ -795,10 +789,6 @@ mod default {
             1024
         }
 
-        pub fn stream_enable_executor_row_count() -> bool {
-            false
-        }
-
         pub fn connector_message_buffer_size() -> usize {
             16
         }
diff --git a/src/config/example.toml b/src/config/example.toml
index 9e2742d47aa40..df204708e7c25 100644
--- a/src/config/example.toml
+++ b/src/config/example.toml
@@ -44,7 +44,6 @@ async_stack_trace = "ReleaseVerbose"
 unique_user_stream_errors = 10
 
 [streaming.developer]
-stream_enable_executor_row_count = false
 stream_connector_message_buffer_size = 16
 stream_unsafe_extreme_cache_size = 10
 stream_chunk_size = 1024
diff --git a/src/stream/src/executor/wrapper.rs b/src/stream/src/executor/wrapper.rs
index 761db62a8b48f..32c02d78108a9 100644
--- a/src/stream/src/executor/wrapper.rs
+++ b/src/stream/src/executor/wrapper.rs
@@ -44,8 +44,6 @@ pub struct WrapperExecutor {
     input: BoxedExecutor,
 
     extra: ExtraInfo,
-
-    enable_executor_row_count: bool,
 }
 
 impl WrapperExecutor {
@@ -55,7 +53,6 @@ impl WrapperExecutor {
         actor_id: ActorId,
         executor_id: u64,
         metrics: Arc<StreamingMetrics>,
-        enable_executor_row_count: bool,
     ) -> Self {
         Self {
             input,
@@ -65,20 +62,17 @@ impl WrapperExecutor {
                 executor_id,
                 metrics,
             },
-            enable_executor_row_count,
         }
     }
 
     #[allow(clippy::let_and_return)]
     fn wrap_debug(
-        enable_executor_row_count: bool,
         info: Arc<ExecutorInfo>,
         extra: ExtraInfo,
         stream: impl MessageStream + 'static,
     ) -> impl MessageStream + 'static {
         // Trace
         let stream = trace::trace(
-            enable_executor_row_count,
             info.clone(),
             extra.input_pos,
             extra.actor_id,
@@ -95,25 +89,17 @@ impl WrapperExecutor {
 
     #[allow(clippy::let_and_return)]
     fn wrap_release(
-        enable_executor_row_count: bool,
         _info: Arc<ExecutorInfo>,
         extra: ExtraInfo,
         stream: impl MessageStream + 'static,
     ) -> impl MessageStream + 'static {
         // Metrics
-        let stream = trace::metrics(
-            enable_executor_row_count,
-            extra.actor_id,
-            extra.executor_id,
-            extra.metrics,
-            stream,
-        );
+        let stream = trace::metrics(extra.actor_id, extra.executor_id, extra.metrics, stream);
 
         stream
     }
 
     fn wrap(
-        enable_executor_row_count: bool,
         info: Arc<ExecutorInfo>,
         extra: ExtraInfo,
         stream: impl MessageStream + 'static,
@@ -133,9 +119,9 @@ impl WrapperExecutor {
         let stream = epoch_provide::epoch_provide(stream);
 
         if cfg!(debug_assertions) {
-            Self::wrap_debug(enable_executor_row_count, info, extra, stream).boxed()
+            Self::wrap_debug(info, extra, stream).boxed()
         } else {
-            Self::wrap_release(enable_executor_row_count, info, extra, stream).boxed()
+            Self::wrap_release(info, extra, stream).boxed()
         }
     }
 }
@@ -143,24 +129,12 @@ impl WrapperExecutor {
 impl Executor for WrapperExecutor {
     fn execute(self: Box<Self>) -> BoxedMessageStream {
         let info = Arc::new(self.input.info());
-        Self::wrap(
-            self.enable_executor_row_count,
-            info,
-            self.extra,
-            self.input.execute(),
-        )
-        .boxed()
+        Self::wrap(info, self.extra, self.input.execute()).boxed()
     }
 
     fn execute_with_epoch(self: Box<Self>, epoch: u64) -> BoxedMessageStream {
         let info = Arc::new(self.input.info());
-        Self::wrap(
-            self.enable_executor_row_count,
-            info,
-            self.extra,
-            self.input.execute_with_epoch(epoch),
-        )
-        .boxed()
+        Self::wrap(info, self.extra, self.input.execute_with_epoch(epoch)).boxed()
     }
 
     fn schema(&self) -> &Schema {
diff --git a/src/stream/src/executor/wrapper/trace.rs b/src/stream/src/executor/wrapper/trace.rs
index 6d01636647fb7..a46448991440d 100644
--- a/src/stream/src/executor/wrapper/trace.rs
+++ b/src/stream/src/executor/wrapper/trace.rs
@@ -28,7 +28,6 @@ use crate::task::ActorId;
 /// Streams wrapped by `trace` will print data passing in the stream graph to stdout.
 #[try_stream(ok = Message, error = StreamExecutorError)]
 pub async fn trace(
-    enable_executor_row_count: bool,
     info: Arc<ExecutorInfo>,
     input_pos: usize,
     actor_id: ActorId,
@@ -52,12 +51,10 @@ pub async fn trace(
     while let Some(message) = input.next().in_span(span()).await.transpose()? {
         if let Message::Chunk(chunk) = &message {
             if chunk.cardinality() > 0 {
-                if enable_executor_row_count {
-                    metrics
-                        .executor_row_count
-                        .with_label_values(&[&actor_id_string, &info.identity])
-                        .inc_by(chunk.cardinality() as u64);
-                }
+                metrics
+                    .executor_row_count
+                    .with_label_values(&[&actor_id_string, &info.identity])
+                    .inc_by(chunk.cardinality() as u64);
                 event!(tracing::Level::TRACE, prev = %info.identity, msg = "chunk", "input = \n{:#?}", chunk);
             }
         }
@@ -69,7 +66,6 @@ pub async fn trace(
 /// Streams wrapped by `metrics` will update actor metrics.
 #[try_stream(ok = Message, error = StreamExecutorError)]
 pub async fn metrics(
-    enable_executor_row_count: bool,
     actor_id: ActorId,
     executor_id: u64,
     metrics: Arc<StreamingMetrics>,
@@ -80,14 +76,12 @@ pub async fn metrics(
     pin_mut!(input);
 
     while let Some(message) = input.next().await.transpose()? {
-        if enable_executor_row_count {
-            if let Message::Chunk(chunk) = &message {
-                if chunk.cardinality() > 0 {
-                    metrics
-                        .executor_row_count
-                        .with_label_values(&[&actor_id_string, &executor_id_string])
-                        .inc_by(chunk.cardinality() as u64);
-                }
+        if let Message::Chunk(chunk) = &message {
+            if chunk.cardinality() > 0 {
+                metrics
+                    .executor_row_count
+                    .with_label_values(&[&actor_id_string, &executor_id_string])
+                    .inc_by(chunk.cardinality() as u64);
             }
         }
 
diff --git a/src/stream/src/task/stream_manager.rs b/src/stream/src/task/stream_manager.rs
index 81061188f64eb..8710e412db5f1 100644
--- a/src/stream/src/task/stream_manager.rs
+++ b/src/stream/src/task/stream_manager.rs
@@ -552,7 +552,6 @@ impl LocalStreamManagerCore {
             actor_context.id,
             executor_id,
             self.streaming_metrics.clone(),
-            self.config.developer.enable_executor_row_count,
         )
         .boxed();
 

From 2b2ea49b9231707577cd26d853068d7b7ebd6be1 Mon Sep 17 00:00:00 2001
From: Eric Fu <eric@singularity-data.com>
Date: Tue, 13 Jun 2023 17:19:35 +0800
Subject: [PATCH 03/12] fix(metrics): incorrect FP rate (#10300)

---
 docker/dashboards/risingwave-dev-dashboard.json  | 2 +-
 docker/dashboards/risingwave-user-dashboard.json | 2 +-
 docs/cpu-profiling.md                            | 4 ++--
 grafana/risingwave-dev-dashboard.dashboard.py    | 2 +-
 grafana/risingwave-dev-dashboard.json            | 2 +-
 grafana/risingwave-user-dashboard.json           | 2 +-
 6 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/docker/dashboards/risingwave-dev-dashboard.json b/docker/dashboards/risingwave-dev-dashboard.json
index b3b820c931506..91e5e7a89f7e4 100644
--- a/docker/dashboards/risingwave-dev-dashboard.json
+++ b/docker/dashboards/risingwave-dev-dashboard.json
@@ -1 +1 @@
-{"__inputs":[],"annotations":{"list":[]},"description":"RisingWave Dev Dashboard","editable":true,"gnetId":null,"hideControls":false,"id":null,"links":[],"panels":[{"cacheTimeout":null,"collapsed":false,"datasource":null,"description":null,"editable":true,"error":false,"fieldConfig":{"defaults":{"thresholds":{"mode":"absolute","steps":[]}}},"gridPos":{"h":1,"w":24,"x":0,"y":0},"height":null,"hideTimeOverride":false,"id":1,"interval":null,"links":[],"maxDataPoints":100,"maxPerRow":null,"minSpan":null,"panels":[],"repeat":null,"repeatDirection":null,"span":null,"targets":[],"timeFrom":null,"timeShift":null,"title":"Actor/Table Id Info","transformations":[],"transparent":false,"type":"row"},{"cacheTimeout":null,"color":{"mode":"thresholds"},"columns":[],"datasource":{"type":"prometheus","uid":"risedev-prometheus"},"description":"Mapping from actor id to fragment id","editable":true,"error":false,"fieldConfig":{"defaults":{"custom":{"align":"auto","displayMode":"auto","filterable":true},"thresholds":{"mode":"absolute","steps":[]}},"overrides":[]},"fontSize":"100%","gridPos":{"h":8,"w":12,"x":0,"y":1},"height":null,"hideTimeOverride":false,"id":2,"interval":null,"links":[],"mappings":[],"maxDataPoints":100,"maxPerRow":null,"minSpan":null,"options":{"showHeader":true},"repeat":null,"repeatDirection":null,"span":6,"targets":[{"datasource":{"type":"prometheus","uid":"risedev-prometheus"},"expr":"actor_info{job=~\"$job\",instance=~\"$node\"}","format":"table","hide":false,"instant":true,"interval":"","intervalFactor":2,"legendFormat":"","metric":"","refId":"","step":10,"target":""}],"timeFrom":null,"timeShift":null,"title":"Actor Id Info","transformations":[{"id":"organize","options":{"excludeByName":{"Time":true,"Value":true,"__name__":true,"instance":true,"job":true}}}],"transparent":false,"type":"table"},{"cacheTimeout":null,"color":{"mode":"thresholds"},"columns":[],"datasource":{"type":"prometheus","uid":"risedev-prometheus"},"description":"Mapping from table id to actor id and table name","editable":true,"error":false,"fieldConfig":{"defaults":{"custom":{"align":"auto","displayMode":"auto","filterable":true},"thresholds":{"mode":"absolute","steps":[]}},"overrides":[]},"fontSize":"100%","gridPos":{"h":8,"w":12,"x":12,"y":1},"height":null,"hideTimeOverride":false,"id":3,"interval":null,"links":[],"mappings":[],"maxDataPoints":100,"maxPerRow":null,"minSpan":null,"options":{"showHeader":true},"repeat":null,"repeatDirection":null,"span":6,"targets":[{"datasource":{"type":"prometheus","uid":"risedev-prometheus"},"expr":"table_info{job=~\"$job\",instance=~\"$node\"}","format":"table","hide":false,"instant":true,"interval":"","intervalFactor":2,"legendFormat":"","metric":"","refId":"","step":10,"target":""}],"timeFrom":null,"timeShift":null,"title":"Table Id 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One is the leader and the rest are the 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diff --git a/docs/cpu-profiling.md b/docs/cpu-profiling.md
index 5b23caed3c626..534a39825f434 100644
--- a/docs/cpu-profiling.md
+++ b/docs/cpu-profiling.md
@@ -6,13 +6,13 @@ Share an easy-to-use profiler and flamegraph tool: https://github.com/koute/not-
 Record samples:
 
 ```shell
-nperf record -p `pidof compute-node` -o perf.data`
+nperf record -p `pidof compute-node` -o perf.data
 ```
 
 Generate flamegraph: 
 
 ```shell
-nperf flamegraph perf.data > perf.svg
+nperf flamegraph --merge-threads perf.data > perf.svg
 ```
 
 ## Profiling remote compute nodes
diff --git a/grafana/risingwave-dev-dashboard.dashboard.py b/grafana/risingwave-dev-dashboard.dashboard.py
index 3c6e227ae3c30..2fe605b1766b9 100644
--- a/grafana/risingwave-dev-dashboard.dashboard.py
+++ b/grafana/risingwave-dev-dashboard.dashboard.py
@@ -1792,7 +1792,7 @@ def section_hummock(panels):
             "False-Positive / Positive",
             [
                 panels.target(
-                    f"1 - (((sum(rate({table_metric('state_store_read_req_positive_but_non_exist_counts')}[$__rate_interval])) by (job,instance,table_id,type))) / (sum(rate({table_metric('state_store_read_req_bloom_filter_positive_counts')}[$__rate_interval])) by (job,instance,table_id,type)))",
+                    f"(((sum(rate({table_metric('state_store_read_req_positive_but_non_exist_counts')}[$__rate_interval])) by (job,instance,table_id,type))) / (sum(rate({table_metric('state_store_read_req_bloom_filter_positive_counts')}[$__rate_interval])) by (job,instance,table_id,type)))",
                     "read req bloom filter false positive rate - {{table_id}} - {{type}} @ {{job}} @ {{instance}}",
                 ),
             ],
diff --git a/grafana/risingwave-dev-dashboard.json b/grafana/risingwave-dev-dashboard.json
index b3b820c931506..91e5e7a89f7e4 100644
--- a/grafana/risingwave-dev-dashboard.json
+++ b/grafana/risingwave-dev-dashboard.json
@@ -1 +1 @@
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From 16a0efcc7575505bbb849af697366a9b41194071 Mon Sep 17 00:00:00 2001
From: Runji Wang <wangrunji0408@163.com>
Date: Tue, 13 Jun 2023 17:58:34 +0800
Subject: [PATCH 04/12] feat(udf): Java UDF SDK (#10095)

---
 ci/scripts/build-other.sh                     |   9 +-
 ci/scripts/run-e2e-test.sh                    |  11 +-
 e2e_test/udf/test.py                          |  10 +-
 e2e_test/udf/{python.slt => udf.slt}          |  61 ++-
 java/pom.xml                                  |   1 +
 java/udf/README.md                            |   8 +
 java/udf/pom.xml                              |  95 +++++
 .../risingwave/functions/DataTypeHint.java    |  23 ++
 .../risingwave/functions/ScalarFunction.java  |  60 +++
 .../functions/ScalarFunctionBatch.java        |  63 +++
 .../risingwave/functions/TableFunction.java   |  67 +++
 .../functions/TableFunctionBatch.java         |  88 ++++
 .../com/risingwave/functions/TypeUtils.java   | 387 ++++++++++++++++++
 .../com/risingwave/functions/UdfServer.java   | 167 ++++++++
 .../functions/UserDefinedFunction.java        |  24 ++
 .../functions/UserDefinedFunctionBatch.java   |  97 +++++
 .../functions/example/UdfExample.java         | 185 +++++++++
 .../risingwave/functions/TestUdfServer.java   | 109 +++++
 .../com/risingwave/functions/UdfClient.java   |  54 +++
 src/batch/src/executor/table_function.rs      |   9 +-
 src/common/src/array/struct_array.rs          |   9 -
 src/expr/macro/src/gen.rs                     |  34 +-
 src/expr/src/expr/expr_nested_construct.rs    |  10 +-
 src/expr/src/table_function/mod.rs            |  42 +-
 src/expr/src/table_function/repeat.rs         |   6 +-
 src/frontend/src/handler/create_function.rs   |  16 +-
 src/udf/python/risingwave/udf.py              |  28 +-
 src/udf/python/setup.py                       |   8 +-
 28 files changed, 1560 insertions(+), 121 deletions(-)
 rename e2e_test/udf/{python.slt => udf.slt} (84%)
 create mode 100644 java/udf/README.md
 create mode 100644 java/udf/pom.xml
 create mode 100644 java/udf/src/main/java/com/risingwave/functions/DataTypeHint.java
 create mode 100644 java/udf/src/main/java/com/risingwave/functions/ScalarFunction.java
 create mode 100644 java/udf/src/main/java/com/risingwave/functions/ScalarFunctionBatch.java
 create mode 100644 java/udf/src/main/java/com/risingwave/functions/TableFunction.java
 create mode 100644 java/udf/src/main/java/com/risingwave/functions/TableFunctionBatch.java
 create mode 100644 java/udf/src/main/java/com/risingwave/functions/TypeUtils.java
 create mode 100644 java/udf/src/main/java/com/risingwave/functions/UdfServer.java
 create mode 100644 java/udf/src/main/java/com/risingwave/functions/UserDefinedFunction.java
 create mode 100644 java/udf/src/main/java/com/risingwave/functions/UserDefinedFunctionBatch.java
 create mode 100644 java/udf/src/main/java/com/risingwave/functions/example/UdfExample.java
 create mode 100644 java/udf/src/test/java/com/risingwave/functions/TestUdfServer.java
 create mode 100644 java/udf/src/test/java/com/risingwave/functions/UdfClient.java

diff --git a/ci/scripts/build-other.sh b/ci/scripts/build-other.sh
index b04276ce7a7ae..13119c59bfa08 100755
--- a/ci/scripts/build-other.sh
+++ b/ci/scripts/build-other.sh
@@ -6,10 +6,13 @@ set -euo pipefail
 source ci/scripts/common.sh
 
 
-echo "--- Build Java connector node"
+echo "--- Build Java packages"
 cd java
-
 mvn -B package -Dmaven.test.skip=true
+cd ..
+
 echo "--- Upload Java artifacts"
-cp connector-node/assembly/target/risingwave-connector-1.0.0.tar.gz ./risingwave-connector.tar.gz
+cp java/connector-node/assembly/target/risingwave-connector-1.0.0.tar.gz ./risingwave-connector.tar.gz
+cp java/udf/target/risingwave-udf-example.jar ./risingwave-udf-example.jar
 buildkite-agent artifact upload ./risingwave-connector.tar.gz
+buildkite-agent artifact upload ./risingwave-udf-example.jar
diff --git a/ci/scripts/run-e2e-test.sh b/ci/scripts/run-e2e-test.sh
index e464080992b77..1ffcf56faee7e 100755
--- a/ci/scripts/run-e2e-test.sh
+++ b/ci/scripts/run-e2e-test.sh
@@ -24,6 +24,7 @@ download_and_prepare_rw "$profile" common
 echo "--- Download artifacts"
 download-and-decompress-artifact e2e_test_generated ./
 download-and-decompress-artifact risingwave_e2e_extended_mode_test-"$profile" target/debug/
+buildkite-agent artifact download risingwave-udf-example.jar ./
 mv target/debug/risingwave_e2e_extended_mode_test-"$profile" target/debug/risingwave_e2e_extended_mode_test
 
 chmod +x ./target/debug/risingwave_e2e_extended_mode_test
@@ -46,12 +47,18 @@ sqllogictest -p 4566 -d dev './e2e_test/visibility_mode/*.slt' --junit "batch-${
 sqllogictest -p 4566 -d dev './e2e_test/database/prepare.slt'
 sqllogictest -p 4566 -d test './e2e_test/database/test.slt'
 
-echo "--- e2e, ci-3streaming-2serving-3fe, udf"
+echo "--- e2e, ci-3streaming-2serving-3fe, python udf"
 python3 e2e_test/udf/test.py &
 sleep 2
-sqllogictest -p 4566 -d dev './e2e_test/udf/python.slt'
+sqllogictest -p 4566 -d dev './e2e_test/udf/udf.slt'
 pkill python3
 
+echo "--- e2e, ci-3streaming-2serving-3fe, java udf"
+java -jar risingwave-udf-example.jar &
+sleep 2
+sqllogictest -p 4566 -d dev './e2e_test/udf/udf.slt'
+pkill java
+
 echo "--- Kill cluster"
 cargo make ci-kill
 
diff --git a/e2e_test/udf/test.py b/e2e_test/udf/test.py
index db5e596bbe9cc..d35565d44bfdc 100644
--- a/e2e_test/udf/test.py
+++ b/e2e_test/udf/test.py
@@ -41,10 +41,10 @@ def series(n: int) -> Iterator[int]:
         yield i
 
 
-@udtf(input_types="INT", result_types=["INT", "VARCHAR"])
-def series2(n: int) -> Iterator[Tuple[int, str]]:
-    for i in range(n):
-        yield i, f"#{i}"
+@udtf(input_types="VARCHAR", result_types=["VARCHAR", "INT"])
+def split(string: str) -> Iterator[Tuple[str, int]]:
+    for s in string.split(" "):
+        yield s, len(s)
 
 
 @udf(input_types="VARCHAR", result_type="DECIMAL")
@@ -100,7 +100,7 @@ def jsonb_array_struct_identity(v: Tuple[List[Any], int]) -> Tuple[List[Any], in
     server.add_function(gcd)
     server.add_function(gcd3)
     server.add_function(series)
-    server.add_function(series2)
+    server.add_function(split)
     server.add_function(extract_tcp_info)
     server.add_function(hex_to_dec)
     server.add_function(array_access)
diff --git a/e2e_test/udf/python.slt b/e2e_test/udf/udf.slt
similarity index 84%
rename from e2e_test/udf/python.slt
rename to e2e_test/udf/udf.slt
index bd3bd0c4a253a..10a0370aa7853 100644
--- a/e2e_test/udf/python.slt
+++ b/e2e_test/udf/udf.slt
@@ -1,5 +1,7 @@
 # Before running this test:
 #   python3 e2e_test/udf/test.py
+# or:
+#   cd src/udf/java && mvn package && java -jar target/risingwave-udf-example.jar
 
 # Create a function.
 statement ok
@@ -35,7 +37,7 @@ create function series(int) returns table (x int) language python as series usin
 
 # Create a table function that returns multiple columns.
 statement ok
-create function series2(int) returns table (x int, y varchar) language python as series2 using link 'http://localhost:8815';
+create function split(varchar) returns table (word varchar, length int) language python as split using link 'http://localhost:8815';
 
 statement ok
 create function hex_to_dec(varchar) returns decimal language python as hex_to_dec using link 'http://localhost:8815';
@@ -70,7 +72,7 @@ jsonb_array_identity jsonb[] jsonb[] python http://localhost:8815
 jsonb_array_struct_identity struct<v jsonb[],len integer> struct<v jsonb[],len integer> python http://localhost:8815
 jsonb_concat jsonb[] jsonb python http://localhost:8815
 series integer integer python http://localhost:8815
-series2 integer struct<x integer,y varchar> python http://localhost:8815
+split varchar struct<word varchar,length integer> python http://localhost:8815
 
 query I
 select int_42();
@@ -111,12 +113,12 @@ select jsonb_concat(ARRAY['null'::jsonb, '1'::jsonb, '"str"'::jsonb, '{}'::jsonb
 [null, 1, "str", {}]
 
 query T
-select jsonb_array_identity(ARRAY['null'::jsonb, '1'::jsonb, '"str"'::jsonb, '{}'::jsonb]);
+select jsonb_array_identity(ARRAY[null, '1'::jsonb, '"str"'::jsonb, '{}'::jsonb]);
 ----
 {NULL,1,"\"str\"","{}"}
 
 query T
-select jsonb_array_struct_identity(ROW(ARRAY['null'::jsonb, '1'::jsonb, '"str"'::jsonb, '{}'::jsonb], 4)::struct<v jsonb[], len int>);
+select jsonb_array_struct_identity(ROW(ARRAY[null, '1'::jsonb, '"str"'::jsonb, '{}'::jsonb], 4)::struct<v jsonb[], len int>);
 ----
 ({NULL,1,"\"str\"","{}"},4)
 
@@ -130,18 +132,16 @@ select series(5);
 4
 
 query IT
-select * from series2(3);
+select * from split('rising wave');
 ----
-0 #0
-1 #1
-2 #2
+rising 6
+wave   4
 
 query T
-select series2(3);
+select split('rising wave');
 ----
-(0,#0)
-(1,#1)
-(2,#2)
+(rising,6)
+(wave,4)
 
 query II
 select x, series(x) from series(4) t(x);
@@ -153,16 +153,6 @@ select x, series(x) from series(4) t(x);
 3 1
 3 2
 
-query IT
-select x, series2(x) from series(4) t(x);
-----
-1 (0,#0)
-2 (0,#0)
-2 (1,#1)
-3 (0,#0)
-3 (1,#1)
-3 (2,#2)
-
 # test large output for table function
 query I
 select count(*) from series(1000000);
@@ -229,3 +219,30 @@ drop function gcd();
 # Drop a function without arguments. Now the function name is unique.
 statement ok
 drop function gcd;
+
+statement ok
+drop function extract_tcp_info;
+
+statement ok
+drop function series;
+
+statement ok
+drop function split;
+
+statement ok
+drop function hex_to_dec;
+
+statement ok
+drop function array_access;
+
+statement ok
+drop function jsonb_access;
+
+statement ok
+drop function jsonb_concat;
+
+statement ok
+drop function jsonb_array_identity;
+
+statement ok
+drop function jsonb_array_struct_identity;
diff --git a/java/pom.xml b/java/pom.xml
index b45029847799b..86cc708bfb2be 100644
--- a/java/pom.xml
+++ b/java/pom.xml
@@ -8,6 +8,7 @@
     <version>1.0-SNAPSHOT</version>
     <modules>
         <module>proto</module>
+        <module>udf</module>
         <module>java-binding</module>
         <module>common-utils</module>
         <module>java-binding-integration-test</module>
diff --git a/java/udf/README.md b/java/udf/README.md
new file mode 100644
index 0000000000000..74542f51a801d
--- /dev/null
+++ b/java/udf/README.md
@@ -0,0 +1,8 @@
+## How to run example
+
+Make sure you have installed Java 11 and Maven 3 or later.
+
+```sh
+mvn package
+java -jar target/risingwave-udf-example.jar
+```
diff --git a/java/udf/pom.xml b/java/udf/pom.xml
new file mode 100644
index 0000000000000..0db50f4071c53
--- /dev/null
+++ b/java/udf/pom.xml
@@ -0,0 +1,95 @@
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <groupId>com.risingwave.java</groupId>
+  <artifactId>risingwave-udf</artifactId>
+  <packaging>jar</packaging>
+  <version>0.0.1</version>
+  <name>risingwave-udf</name>
+  <url>http://maven.apache.org</url>
+
+  <properties>
+    <maven.compiler.source>11</maven.compiler.source>
+    <maven.compiler.target>11</maven.compiler.target>
+  </properties>
+
+  <dependencies>
+    <dependency>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter-engine</artifactId>
+      <version>5.9.1</version>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.apache.arrow</groupId>
+      <artifactId>arrow-vector</artifactId>
+      <version>12.0.0</version>
+    </dependency>
+    <dependency>
+      <groupId>org.apache.arrow</groupId>
+      <artifactId>flight-core</artifactId>
+      <version>12.0.0</version>
+    </dependency>
+    <dependency>
+      <groupId>com.google.code.gson</groupId>
+      <artifactId>gson</artifactId>
+      <version>2.10.1</version>
+    </dependency>
+    <dependency>
+      <groupId>org.slf4j</groupId>
+      <artifactId>slf4j-api</artifactId>
+      <version>2.0.7</version>
+    </dependency>
+    <dependency>
+      <groupId>org.slf4j</groupId>
+      <artifactId>slf4j-simple</artifactId>
+      <version>2.0.7</version>
+    </dependency>
+  </dependencies>
+  <build>
+    <extensions>
+      <extension>
+        <groupId>kr.motd.maven</groupId>
+        <artifactId>os-maven-plugin</artifactId>
+        <version>1.7.0</version>
+      </extension>
+    </extensions>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-surefire-plugin</artifactId>
+        <version>3.0.0-M7</version>
+        <configuration>
+          <argLine>--add-opens=java.base/java.nio=ALL-UNNAMED</argLine>
+        </configuration>
+      </plugin>
+      <!-- generate an executable for examples -->
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-assembly-plugin</artifactId>
+        <version>3.4.2</version>
+        <configuration>
+          <archive>
+            <manifest>
+              <mainClass>com.risingwave.functions.example.UdfExample</mainClass>
+            </manifest>
+          </archive>
+          <descriptorRefs>
+            <descriptorRef>jar-with-dependencies</descriptorRef>
+          </descriptorRefs>
+          <finalName>risingwave-udf-example</finalName>
+          <appendAssemblyId>false</appendAssemblyId>
+        </configuration>
+        <executions>
+          <execution>
+            <id>udf-example</id>
+            <phase>package</phase>
+            <goals>
+              <goal>single</goal>
+            </goals>
+          </execution>
+        </executions>
+      </plugin>
+    </plugins>
+  </build>
+</project>
diff --git a/java/udf/src/main/java/com/risingwave/functions/DataTypeHint.java b/java/udf/src/main/java/com/risingwave/functions/DataTypeHint.java
new file mode 100644
index 0000000000000..100a953bca75c
--- /dev/null
+++ b/java/udf/src/main/java/com/risingwave/functions/DataTypeHint.java
@@ -0,0 +1,23 @@
+// Copyright 2023 RisingWave Labs
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.risingwave.functions;
+
+import java.lang.annotation.*;
+
+@Retention(RetentionPolicy.RUNTIME)
+@Target({ ElementType.METHOD, ElementType.FIELD, ElementType.PARAMETER })
+public @interface DataTypeHint {
+    String value();
+}
diff --git a/java/udf/src/main/java/com/risingwave/functions/ScalarFunction.java b/java/udf/src/main/java/com/risingwave/functions/ScalarFunction.java
new file mode 100644
index 0000000000000..a40507602ce77
--- /dev/null
+++ b/java/udf/src/main/java/com/risingwave/functions/ScalarFunction.java
@@ -0,0 +1,60 @@
+// Copyright 2023 RisingWave Labs
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.risingwave.functions;
+
+/**
+ * Base interface for a user-defined scalar function. A user-defined scalar
+ * function maps zero, one, or multiple scalar values to a new scalar value.
+ * 
+ * <p>
+ * The behavior of a {@link ScalarFunction} can be defined by implementing a
+ * custom evaluation method. An evaluation method must be declared publicly, not
+ * static, and named <code>eval</code>. Multiple overloaded methods named
+ * <code>eval</code> are not supported yet.
+ * 
+ * <p>
+ * By default, input and output data types are automatically extracted using
+ * reflection.
+ * 
+ * <p>
+ * The following examples show how to specify a scalar function:
+ *
+ * <pre>
+ * {@code
+ * // a function that accepts two INT arguments and computes a sum
+ * class SumFunction implements ScalarFunction {
+ *     public Integer eval(Integer a, Integer b) {
+ *         return a + b;
+ *     }
+ * }
+ * 
+ * // a function that returns a struct type
+ * class StructFunction implements ScalarFunction {
+ *     public static class KeyValue {
+ *         public String key;
+ *         public int value;
+ *     }
+ * 
+ *     public KeyValue eval(int a) {
+ *         KeyValue kv = new KeyValue();
+ *         kv.key = a.toString();
+ *         kv.value = a;
+ *         return kv;
+ *     }
+ * }
+ * }</pre>
+ */
+public interface ScalarFunction extends UserDefinedFunction {
+}
diff --git a/java/udf/src/main/java/com/risingwave/functions/ScalarFunctionBatch.java b/java/udf/src/main/java/com/risingwave/functions/ScalarFunctionBatch.java
new file mode 100644
index 0000000000000..e81a1019aa7db
--- /dev/null
+++ b/java/udf/src/main/java/com/risingwave/functions/ScalarFunctionBatch.java
@@ -0,0 +1,63 @@
+// Copyright 2023 RisingWave Labs
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.risingwave.functions;
+
+import org.apache.arrow.memory.BufferAllocator;
+import org.apache.arrow.vector.VectorSchemaRoot;
+
+import java.lang.invoke.MethodHandle;
+import java.util.Collections;
+import java.util.Iterator;
+import java.util.function.Function;
+
+/**
+ * Batch-processing wrapper over a user-defined scalar function.
+ */
+class ScalarFunctionBatch extends UserDefinedFunctionBatch {
+    ScalarFunction function;
+    MethodHandle methodHandle;
+    Function<Object, Object>[] processInputs;
+
+    ScalarFunctionBatch(ScalarFunction function, BufferAllocator allocator) {
+        this.function = function;
+        this.allocator = allocator;
+        var method = Reflection.getEvalMethod(function);
+        this.methodHandle = Reflection.getMethodHandle(method);
+        this.inputSchema = TypeUtils.methodToInputSchema(method);
+        this.outputSchema = TypeUtils.methodToOutputSchema(method);
+        this.processInputs = TypeUtils.methodToProcessInputs(method);
+    }
+
+    @Override
+    Iterator<VectorSchemaRoot> evalBatch(VectorSchemaRoot batch) {
+        var row = new Object[batch.getSchema().getFields().size() + 1];
+        row[0] = this.function;
+        var outputValues = new Object[batch.getRowCount()];
+        for (int i = 0; i < batch.getRowCount(); i++) {
+            for (int j = 0; j < row.length - 1; j++) {
+                var val = batch.getVector(j).getObject(i);
+                row[j + 1] = this.processInputs[j].apply(val);
+            }
+            try {
+                outputValues[i] = this.methodHandle.invokeWithArguments(row);
+            } catch (Throwable e) {
+                throw new RuntimeException(e);
+            }
+        }
+        var outputVector = TypeUtils.createVector(this.outputSchema.getFields().get(0), this.allocator, outputValues);
+        var outputBatch = VectorSchemaRoot.of(outputVector);
+        return Collections.singleton(outputBatch).iterator();
+    }
+}
diff --git a/java/udf/src/main/java/com/risingwave/functions/TableFunction.java b/java/udf/src/main/java/com/risingwave/functions/TableFunction.java
new file mode 100644
index 0000000000000..45e2266b3ff38
--- /dev/null
+++ b/java/udf/src/main/java/com/risingwave/functions/TableFunction.java
@@ -0,0 +1,67 @@
+// Copyright 2023 RisingWave Labs
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.risingwave.functions;
+
+/**
+ * Base interface for a user-defined table function. A user-defined table
+ * function maps zero, one, or multiple scalar values to zero, one, or multiple
+ * rows (or structured types). If an output record consists of only one field,
+ * the structured record can be omitted, and a scalar value can be emitted that
+ * will be implicitly wrapped into a row by the runtime.
+ *
+ * <p>
+ * The behavior of a {@link TableFunction} can be defined by implementing a
+ * custom evaluation method. An evaluation method must be declared publicly, not
+ * static, and named <code>eval</code>. The return type must be an Iterator.
+ * Multiple overloaded methods named <code>eval</code> are not supported yet.
+ *
+ * <p>
+ * By default, input and output data types are automatically extracted using
+ * reflection.
+ *
+ * <p>
+ * The following examples show how to specify a table function:
+ *
+ * <pre>
+ * {@code
+ * // a function that accepts an INT arguments and emits the range from 0 to the
+ * // given number.
+ * class Series implements TableFunction {
+ *     public Iterator<Integer> eval(int n) {
+ *         return IntStream.range(0, n).iterator();
+ *     }
+ * }
+ * 
+ * // a function that accepts an String arguments and emits the words of the
+ * // given string.
+ * class Split implements TableFunction {
+ *     public static class Row {
+ *         public String word;
+ *         public int length;
+ *     }
+ * 
+ *     public Iterator<Row> eval(String str) {
+ *         return Stream.of(str.split(" ")).map(s -> {
+ *             Row row = new Row();
+ *             row.word = s;
+ *             row.length = s.length();
+ *             return row;
+ *         }).iterator();
+ *     }
+ * }
+ * }</pre>
+ */
+public interface TableFunction extends UserDefinedFunction {
+}
diff --git a/java/udf/src/main/java/com/risingwave/functions/TableFunctionBatch.java b/java/udf/src/main/java/com/risingwave/functions/TableFunctionBatch.java
new file mode 100644
index 0000000000000..83b7532e465cd
--- /dev/null
+++ b/java/udf/src/main/java/com/risingwave/functions/TableFunctionBatch.java
@@ -0,0 +1,88 @@
+// Copyright 2023 RisingWave Labs
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.risingwave.functions;
+
+import org.apache.arrow.memory.BufferAllocator;
+import org.apache.arrow.vector.VectorSchemaRoot;
+
+import java.lang.invoke.MethodHandle;
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.function.Function;
+
+/**
+ * Batch-processing wrapper over a user-defined table function.
+ */
+class TableFunctionBatch extends UserDefinedFunctionBatch {
+    TableFunction function;
+    MethodHandle methodHandle;
+    Function<Object, Object>[] processInputs;
+    int chunkSize = 1024;
+
+    TableFunctionBatch(TableFunction function, BufferAllocator allocator) {
+        this.function = function;
+        this.allocator = allocator;
+        var method = Reflection.getEvalMethod(function);
+        this.methodHandle = Reflection.getMethodHandle(method);
+        this.inputSchema = TypeUtils.methodToInputSchema(method);
+        this.outputSchema = TypeUtils.tableFunctionToOutputSchema(method);
+        this.processInputs = TypeUtils.methodToProcessInputs(method);
+    }
+
+    @Override
+    Iterator<VectorSchemaRoot> evalBatch(VectorSchemaRoot batch) {
+        var outputs = new ArrayList<VectorSchemaRoot>();
+        var row = new Object[batch.getSchema().getFields().size() + 1];
+        row[0] = this.function;
+        var indexes = new ArrayList<Integer>();
+        var values = new ArrayList<Object>();
+        Runnable buildChunk = () -> {
+            var fields = this.outputSchema.getFields();
+            var indexVector = TypeUtils.createVector(fields.get(0), this.allocator, indexes.toArray());
+            var valueVector = TypeUtils.createVector(fields.get(1), this.allocator, values.toArray());
+            indexes.clear();
+            values.clear();
+            var outputBatch = VectorSchemaRoot.of(indexVector, valueVector);
+            outputs.add(outputBatch);
+        };
+        for (int i = 0; i < batch.getRowCount(); i++) {
+            // prepare input row
+            for (int j = 0; j < row.length - 1; j++) {
+                var val = batch.getVector(j).getObject(i);
+                row[j + 1] = this.processInputs[j].apply(val);
+            }
+            // call function
+            Iterator<?> iterator;
+            try {
+                iterator = (Iterator<?>) this.methodHandle.invokeWithArguments(row);
+            } catch (Throwable e) {
+                throw new RuntimeException(e);
+            }
+            // push values
+            while (iterator.hasNext()) {
+                indexes.add(i);
+                values.add(iterator.next());
+                // check if we need to flush
+                if (indexes.size() >= this.chunkSize) {
+                    buildChunk.run();
+                }
+            }
+        }
+        if (indexes.size() > 0) {
+            buildChunk.run();
+        }
+        return outputs.iterator();
+    }
+}
diff --git a/java/udf/src/main/java/com/risingwave/functions/TypeUtils.java b/java/udf/src/main/java/com/risingwave/functions/TypeUtils.java
new file mode 100644
index 0000000000000..65d6f168d68b1
--- /dev/null
+++ b/java/udf/src/main/java/com/risingwave/functions/TypeUtils.java
@@ -0,0 +1,387 @@
+// Copyright 2023 RisingWave Labs
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.risingwave.functions;
+
+import org.apache.arrow.memory.BufferAllocator;
+import org.apache.arrow.vector.*;
+import org.apache.arrow.vector.complex.ListVector;
+import org.apache.arrow.vector.complex.StructVector;
+import org.apache.arrow.vector.types.*;
+import org.apache.arrow.vector.types.pojo.*;
+
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.lang.reflect.ParameterizedType;
+import java.math.BigDecimal;
+import java.util.AbstractMap;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Iterator;
+import java.util.List;
+import java.util.function.Function;
+import java.util.stream.Collectors;
+
+class TypeUtils {
+    /**
+     * Convert a string to an Arrow type.
+     */
+    static Field stringToField(String typeStr, String name) {
+        typeStr = typeStr.toUpperCase();
+        if (typeStr.equals("BOOLEAN") || typeStr.equals("BOOL")) {
+            return Field.nullable(name, new ArrowType.Bool());
+        } else if (typeStr.equals("SMALLINT") || typeStr.equals("INT2")) {
+            return Field.nullable(name, new ArrowType.Int(16, true));
+        } else if (typeStr.equals("INT") || typeStr.equals("INTEGER") || typeStr.equals("INT4")) {
+            return Field.nullable(name, new ArrowType.Int(32, true));
+        } else if (typeStr.equals("BIGINT") || typeStr.equals("INT8")) {
+            return Field.nullable(name, new ArrowType.Int(64, true));
+        } else if (typeStr.equals("FLOAT4") || typeStr.equals("REAL")) {
+            return Field.nullable(name, new ArrowType.FloatingPoint(FloatingPointPrecision.SINGLE));
+        } else if (typeStr.equals("FLOAT8") || typeStr.equals("DOUBLE PRECISION")) {
+            return Field.nullable(name, new ArrowType.FloatingPoint(FloatingPointPrecision.DOUBLE));
+        } else if (typeStr.startsWith("DECIMAL") || typeStr.startsWith("NUMERIC")) {
+            return Field.nullable(name, new ArrowType.Decimal(38, 28, 128));
+        } else if (typeStr.equals("DATE")) {
+            return Field.nullable(name, new ArrowType.Date(DateUnit.DAY));
+        } else if (typeStr.equals("TIME") || typeStr.equals("TIME WITHOUT TIME ZONE")) {
+            return Field.nullable(name, new ArrowType.Time(TimeUnit.MICROSECOND, 32));
+        } else if (typeStr.equals("TIMESTAMP") || typeStr.equals("TIMESTAMP WITHOUT TIME ZONE")) {
+            return Field.nullable(name, new ArrowType.Timestamp(TimeUnit.MICROSECOND, null));
+        } else if (typeStr.startsWith("INTERVAL")) {
+            return Field.nullable(name, new ArrowType.Interval(IntervalUnit.MONTH_DAY_NANO));
+        } else if (typeStr.equals("VARCHAR")) {
+            return Field.nullable(name, new ArrowType.Utf8());
+        } else if (typeStr.equals("JSONB")) {
+            return Field.nullable(name, new ArrowType.LargeUtf8());
+        } else if (typeStr.equals("BYTEA")) {
+            return Field.nullable(name, new ArrowType.Binary());
+        } else if (typeStr.endsWith("[]")) {
+            Field innerField = stringToField(typeStr.substring(0, typeStr.length() - 2), "");
+            return new Field(name, FieldType.nullable(new ArrowType.List()), Arrays.asList(innerField));
+        } else if (typeStr.startsWith("STRUCT")) {
+            // extract "STRUCT<INT, VARCHAR, ...>"
+            var typeList = typeStr.substring(7, typeStr.length() - 1);
+            var fields = Arrays.stream(typeList.split(","))
+                    .map(s -> stringToField(s.trim(), ""))
+                    .collect(Collectors.toList());
+            return new Field(name, FieldType.nullable(new ArrowType.Struct()), fields);
+        } else {
+            throw new IllegalArgumentException("Unsupported type: " + typeStr);
+        }
+    }
+
+    /**
+     * Convert a Java class to an Arrow type.
+     * 
+     * @param param The Java class.
+     * @param hint  An optional DataTypeHint annotation.
+     * @param name  The name of the field.
+     * @return The Arrow type.
+     */
+    static Field classToField(Class<?> param, DataTypeHint hint, String name) {
+        if (hint != null) {
+            return stringToField(hint.value(), name);
+        } else if (param == Boolean.class || param == boolean.class) {
+            return Field.nullable(name, new ArrowType.Bool());
+        } else if (param == Short.class || param == short.class) {
+            return Field.nullable(name, new ArrowType.Int(16, true));
+        } else if (param == Integer.class || param == int.class) {
+            return Field.nullable(name, new ArrowType.Int(32, true));
+        } else if (param == Long.class || param == long.class) {
+            return Field.nullable(name, new ArrowType.Int(64, true));
+        } else if (param == Float.class || param == float.class) {
+            return Field.nullable(name, new ArrowType.FloatingPoint(FloatingPointPrecision.SINGLE));
+        } else if (param == Double.class || param == double.class) {
+            return Field.nullable(name, new ArrowType.FloatingPoint(FloatingPointPrecision.DOUBLE));
+        } else if (param == BigDecimal.class) {
+            return Field.nullable(name, new ArrowType.Decimal(28, 0, 128));
+        } else if (param == String.class) {
+            return Field.nullable(name, new ArrowType.Utf8());
+        } else if (param == byte[].class) {
+            return Field.nullable(name, new ArrowType.Binary());
+        } else if (param.isArray()) {
+            var innerField = classToField(param.getComponentType(), null, "");
+            return new Field(name, FieldType.nullable(new ArrowType.List()), Arrays.asList(innerField));
+        } else {
+            // struct type
+            var fields = new ArrayList<Field>();
+            for (var field : param.getDeclaredFields()) {
+                var subhint = field.getAnnotation(DataTypeHint.class);
+                fields.add(classToField(field.getType(), subhint, field.getName()));
+            }
+            return new Field("", FieldType.nullable(new ArrowType.Struct()), fields);
+            // TODO: more types
+            // throw new IllegalArgumentException("Unsupported type: " + param);
+        }
+    }
+
+    /**
+     * Get the input schema from a Java method.
+     */
+    static Schema methodToInputSchema(Method method) {
+        var fields = new ArrayList<Field>();
+        for (var param : method.getParameters()) {
+            var hint = param.getAnnotation(DataTypeHint.class);
+            fields.add(classToField(param.getType(), hint, param.getName()));
+        }
+        return new Schema(fields);
+    }
+
+    /**
+     * Get the output schema of a scalar function from a Java method.
+     */
+    static Schema methodToOutputSchema(Method method) {
+        var type = method.getReturnType();
+        var hint = method.getAnnotation(DataTypeHint.class);
+        return new Schema(Arrays.asList(classToField(type, hint, "")));
+    }
+
+    /**
+     * Get the output schema of a table function from a Java class.
+     */
+    static Schema tableFunctionToOutputSchema(Method method) {
+        var hint = method.getAnnotation(DataTypeHint.class);
+        var type = method.getReturnType();
+        if (!Iterator.class.isAssignableFrom(type)) {
+            throw new IllegalArgumentException("Table function must return Iterator");
+        }
+        var typeArguments = ((ParameterizedType) method.getGenericReturnType()).getActualTypeArguments();
+        type = (Class<?>) typeArguments[0];
+        var row_index = Field.nullable("row_index", new ArrowType.Int(32, true));
+        return new Schema(Arrays.asList(row_index, classToField(type, hint, "")));
+    }
+
+    /**
+     * Return functions to process input values from a Java method.
+     */
+    static Function<Object, Object>[] methodToProcessInputs(Method method) {
+        var schema = methodToInputSchema(method);
+        var params = method.getParameters();
+        @SuppressWarnings("unchecked")
+        Function<Object, Object>[] funcs = new Function[schema.getFields().size()];
+        for (int i = 0; i < schema.getFields().size(); i++) {
+            funcs[i] = processFunc(schema.getFields().get(i), params[i].getType());
+        }
+        return funcs;
+    }
+
+    /**
+     * Create an Arrow vector from an array of values.
+     */
+    static FieldVector createVector(Field field, BufferAllocator allocator, Object[] values) {
+        var vector = field.createVector(allocator);
+        fillVector(vector, values);
+        return vector;
+    }
+
+    /**
+     * Fill an Arrow vector with an array of values.
+     */
+    static void fillVector(FieldVector fieldVector, Object[] values) {
+        if (fieldVector instanceof SmallIntVector) {
+            var vector = (SmallIntVector) fieldVector;
+            vector.allocateNew(values.length);
+            for (int i = 0; i < values.length; i++) {
+                if (values[i] != null) {
+                    vector.set(i, (short) values[i]);
+                }
+            }
+        } else if (fieldVector instanceof IntVector) {
+            var vector = (IntVector) fieldVector;
+            vector.allocateNew(values.length);
+            for (int i = 0; i < values.length; i++) {
+                if (values[i] != null) {
+                    vector.set(i, (int) values[i]);
+                }
+            }
+        } else if (fieldVector instanceof BigIntVector) {
+            var vector = (BigIntVector) fieldVector;
+            vector.allocateNew(values.length);
+            for (int i = 0; i < values.length; i++) {
+                if (values[i] != null) {
+                    vector.set(i, (long) values[i]);
+                }
+            }
+        } else if (fieldVector instanceof Float4Vector) {
+            var vector = (Float4Vector) fieldVector;
+            vector.allocateNew(values.length);
+            for (int i = 0; i < values.length; i++) {
+                if (values[i] != null) {
+                    vector.set(i, (float) values[i]);
+                }
+            }
+        } else if (fieldVector instanceof Float8Vector) {
+            var vector = (Float8Vector) fieldVector;
+            vector.allocateNew(values.length);
+            for (int i = 0; i < values.length; i++) {
+                if (values[i] != null) {
+                    vector.set(i, (double) values[i]);
+                }
+            }
+        } else if (fieldVector instanceof DecimalVector) {
+            var vector = (DecimalVector) fieldVector;
+            vector.allocateNew(values.length);
+            for (int i = 0; i < values.length; i++) {
+                if (values[i] != null) {
+                    vector.set(i, (BigDecimal) values[i]);
+                }
+            }
+        } else if (fieldVector instanceof DateDayVector) {
+            var vector = (DateDayVector) fieldVector;
+            vector.allocateNew(values.length);
+            for (int i = 0; i < values.length; i++) {
+                if (values[i] != null) {
+                    vector.set(i, (int) values[i]);
+                }
+            }
+        } else if (fieldVector instanceof TimeMicroVector) {
+            var vector = (TimeMicroVector) fieldVector;
+            vector.allocateNew(values.length);
+            for (int i = 0; i < values.length; i++) {
+                if (values[i] != null) {
+                    vector.set(i, (long) values[i]);
+                }
+            }
+        } else if (fieldVector instanceof TimeStampMicroVector) {
+            var vector = (TimeStampMicroVector) fieldVector;
+            vector.allocateNew(values.length);
+            for (int i = 0; i < values.length; i++) {
+                if (values[i] != null) {
+                    vector.set(i, (long) values[i]);
+                }
+            }
+        } else if (fieldVector instanceof VarCharVector) {
+            var vector = (VarCharVector) fieldVector;
+            vector.allocateNew(values.length);
+            for (int i = 0; i < values.length; i++) {
+                if (values[i] != null) {
+                    vector.set(i, ((String) values[i]).getBytes());
+                }
+            }
+        } else if (fieldVector instanceof LargeVarCharVector) {
+            var vector = (LargeVarCharVector) fieldVector;
+            vector.allocateNew(values.length);
+            for (int i = 0; i < values.length; i++) {
+                if (values[i] != null) {
+                    vector.set(i, ((String) values[i]).getBytes());
+                }
+            }
+        } else if (fieldVector instanceof VarBinaryVector) {
+            var vector = (VarBinaryVector) fieldVector;
+            vector.allocateNew(values.length);
+            for (int i = 0; i < values.length; i++) {
+                if (values[i] != null) {
+                    vector.set(i, (byte[]) values[i]);
+                }
+            }
+        } else if (fieldVector instanceof ListVector) {
+            var vector = (ListVector) fieldVector;
+            vector.allocateNew();
+            // we have to enumerate the inner type again
+            if (vector.getDataVector() instanceof LargeVarCharVector) {
+                var innerVector = (LargeVarCharVector) vector.getDataVector();
+                for (int i = 0; i < values.length; i++) {
+                    var array = (String[]) values[i];
+                    if (array != null) {
+                        vector.startNewValue(i);
+                        for (int j = 0; j < array.length; j++) {
+                            if (array[j] != null) {
+                                innerVector.setSafe(j, array[j].getBytes());
+                            }
+                        }
+                        vector.endValue(i, array.length);
+                    }
+                }
+            } else {
+                throw new IllegalArgumentException("Unsupported type: " + fieldVector.getClass());
+            }
+        } else if (fieldVector instanceof StructVector) {
+            var vector = (StructVector) fieldVector;
+            vector.allocateNew();
+            for (var field : vector.getField().getChildren()) {
+                // extract field from values
+                var subvalues = new Object[values.length];
+                if (values.length != 0) {
+                    try {
+                        var javaField = values[0].getClass().getDeclaredField(field.getName());
+                        for (int i = 0; i < values.length; i++) {
+                            subvalues[i] = javaField.get(values[i]);
+                        }
+                    } catch (NoSuchFieldException | IllegalAccessException e) {
+                        throw new RuntimeException(e);
+                    }
+                }
+                var subvector = vector.getChild(field.getName());
+                fillVector(subvector, subvalues);
+            }
+            for (int i = 0; i < values.length; i++) {
+                vector.setIndexDefined(i);
+            }
+        } else {
+            throw new IllegalArgumentException("Unsupported type: " + fieldVector.getClass());
+        }
+        fieldVector.setValueCount(values.length);
+    }
+
+    /**
+     * Return a function that converts the object get from input array to the
+     * correct type.
+     */
+    static Function<Object, Object> processFunc(Field field, Class<?> targetClass) {
+        if (field.getType() instanceof ArrowType.Utf8) {
+            // object is org.apache.arrow.vector.util.Text
+            return obj -> obj == null ? null : obj.toString();
+        } else if (field.getType() instanceof ArrowType.LargeUtf8) {
+            // object is org.apache.arrow.vector.util.Text
+            return obj -> obj == null ? null : obj.toString();
+        } else if (field.getType() instanceof ArrowType.List) {
+            // object is org.apache.arrow.vector.util.JsonStringArrayList
+            var subfield = field.getChildren().get(0);
+            var subfunc = processFunc(subfield, null);
+            if (subfield.getType() instanceof ArrowType.Utf8) {
+                return obj -> obj == null ? null : ((List<?>) obj).stream().map(subfunc).toArray(String[]::new);
+            } else if (subfield.getType() instanceof ArrowType.LargeUtf8) {
+                return obj -> obj == null ? null : ((List<?>) obj).stream().map(subfunc).toArray(String[]::new);
+            }
+            throw new IllegalArgumentException("Unsupported type: " + field.getType());
+        } else if (field.getType() instanceof ArrowType.Struct) {
+            // object is org.apache.arrow.vector.util.JsonStringHashMap
+            var subfields = field.getChildren();
+            @SuppressWarnings("unchecked")
+            Function<Object, Object>[] subfunc = new Function[subfields.size()];
+            for (int i = 0; i < subfields.size(); i++) {
+                subfunc[i] = processFunc(subfields.get(i), targetClass.getFields()[i].getType());
+            }
+            return obj -> {
+                if (obj == null)
+                    return null;
+                var map = (AbstractMap<?, ?>) obj;
+                try {
+                    var row = targetClass.getDeclaredConstructor().newInstance();
+                    for (int i = 0; i < subfields.size(); i++) {
+                        var field0 = targetClass.getFields()[i];
+                        var val = subfunc[i].apply(map.get(field0.getName()));
+                        field0.set(row, val);
+                    }
+                    return row;
+                } catch (InstantiationException | IllegalAccessException | InvocationTargetException
+                        | NoSuchMethodException e) {
+                    throw new RuntimeException(e);
+                }
+            };
+        }
+        return Function.identity();
+    }
+}
diff --git a/java/udf/src/main/java/com/risingwave/functions/UdfServer.java b/java/udf/src/main/java/com/risingwave/functions/UdfServer.java
new file mode 100644
index 0000000000000..35d4e7066f5b7
--- /dev/null
+++ b/java/udf/src/main/java/com/risingwave/functions/UdfServer.java
@@ -0,0 +1,167 @@
+// Copyright 2023 RisingWave Labs
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.risingwave.functions;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.HashMap;
+
+import org.apache.arrow.flight.*;
+import org.apache.arrow.memory.BufferAllocator;
+import org.apache.arrow.memory.RootAllocator;
+import org.apache.arrow.vector.VectorLoader;
+import org.apache.arrow.vector.VectorSchemaRoot;
+import org.apache.arrow.vector.VectorUnloader;
+import org.apache.arrow.vector.types.pojo.Field;
+import org.apache.arrow.vector.types.pojo.Schema;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * A server that exposes user-defined functions over Apache Arrow Flight.
+ */
+public class UdfServer implements AutoCloseable {
+
+    private FlightServer server;
+    private UdfProducer producer;
+    private static final Logger logger = LoggerFactory.getLogger(UdfServer.class);
+
+    public UdfServer(String host, int port) {
+        var location = Location.forGrpcInsecure(host, port);
+        var allocator = new RootAllocator();
+        this.producer = new UdfProducer(allocator);
+        this.server = FlightServer.builder(
+                allocator,
+                location,
+                this.producer).build();
+    }
+
+    /**
+     * Add a user-defined function to the server.
+     * 
+     * @param name the name of the function
+     * @param udf  the function to add
+     * @throws IllegalArgumentException if a function with the same name already
+     *                                  exists
+     */
+    public void addFunction(String name, UserDefinedFunction udf) throws IllegalArgumentException {
+        logger.info("added function: " + name);
+        this.producer.addFunction(name, udf);
+    }
+
+    /**
+     * Start the server.
+     */
+    public void start() throws IOException {
+        this.server.start();
+        logger.info("listening on " + this.server.getLocation().toSocketAddress());
+    }
+
+    /**
+     * Get the port the server is listening on.
+     */
+    public int getPort() {
+        return this.server.getPort();
+    }
+
+    /**
+     * Wait for the server to terminate.
+     */
+    public void awaitTermination() throws InterruptedException {
+        this.server.awaitTermination();
+    }
+
+    /**
+     * Close the server.
+     */
+    public void close() throws InterruptedException {
+        this.server.close();
+    }
+}
+
+class UdfProducer extends NoOpFlightProducer {
+
+    private BufferAllocator allocator;
+    private HashMap<String, UserDefinedFunctionBatch> functions = new HashMap<>();
+    private static final Logger logger = LoggerFactory.getLogger(UdfServer.class);
+
+    UdfProducer(BufferAllocator allocator) {
+        this.allocator = allocator;
+    }
+
+    void addFunction(String name, UserDefinedFunction function) throws IllegalArgumentException {
+        UserDefinedFunctionBatch udf;
+        if (function instanceof ScalarFunction) {
+            udf = new ScalarFunctionBatch((ScalarFunction) function, this.allocator);
+        } else if (function instanceof TableFunction) {
+            udf = new TableFunctionBatch((TableFunction) function, this.allocator);
+        } else {
+            throw new IllegalArgumentException("Unknown function type: " + function.getClass().getName());
+        }
+        if (functions.containsKey(name)) {
+            throw new IllegalArgumentException("Function already exists: " + name);
+        }
+        functions.put(name, udf);
+    }
+
+    @Override
+    public FlightInfo getFlightInfo(CallContext context, FlightDescriptor descriptor) {
+        try {
+            var functionName = descriptor.getPath().get(0);
+            var udf = functions.get(functionName);
+            if (udf == null) {
+                throw new IllegalArgumentException("Unknown function: " + functionName);
+            }
+            var fields = new ArrayList<Field>();
+            fields.addAll(udf.getInputSchema().getFields());
+            fields.addAll(udf.getOutputSchema().getFields());
+            var fullSchema = new Schema(fields);
+            var input_len = udf.getInputSchema().getFields().size();
+
+            return new FlightInfo(fullSchema, descriptor, Collections.emptyList(), 0, input_len);
+        } catch (Exception e) {
+            logger.error("Error occurred during getFlightInfo", e);
+            throw e;
+        }
+    }
+
+    @Override
+    public void doExchange(CallContext context, FlightStream reader, ServerStreamListener writer) {
+        try {
+            var functionName = reader.getDescriptor().getPath().get(0);
+            logger.debug("call function: " + functionName);
+
+            var udf = this.functions.get(functionName);
+            try (var root = VectorSchemaRoot.create(udf.getOutputSchema(), this.allocator)) {
+                var loader = new VectorLoader(root);
+                writer.start(root);
+                while (reader.next()) {
+                    var outputBatches = udf.evalBatch(reader.getRoot());
+                    while (outputBatches.hasNext()) {
+                        var outputRoot = outputBatches.next();
+                        var unloader = new VectorUnloader(outputRoot);
+                        loader.load(unloader.getRecordBatch());
+                        writer.putNext();
+                    }
+                }
+                writer.completed();
+            }
+        } catch (Exception e) {
+            logger.error("Error occurred during UDF execution", e);
+            writer.error(e);
+        }
+    }
+}
diff --git a/java/udf/src/main/java/com/risingwave/functions/UserDefinedFunction.java b/java/udf/src/main/java/com/risingwave/functions/UserDefinedFunction.java
new file mode 100644
index 0000000000000..492cd9e245f3c
--- /dev/null
+++ b/java/udf/src/main/java/com/risingwave/functions/UserDefinedFunction.java
@@ -0,0 +1,24 @@
+// Copyright 2023 RisingWave Labs
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.risingwave.functions;
+
+/**
+ * Base interface for all user-defined functions.
+ *
+ * @see ScalarFunction
+ * @see TableFunction
+ */
+public interface UserDefinedFunction {
+}
diff --git a/java/udf/src/main/java/com/risingwave/functions/UserDefinedFunctionBatch.java b/java/udf/src/main/java/com/risingwave/functions/UserDefinedFunctionBatch.java
new file mode 100644
index 0000000000000..cc12675840076
--- /dev/null
+++ b/java/udf/src/main/java/com/risingwave/functions/UserDefinedFunctionBatch.java
@@ -0,0 +1,97 @@
+// Copyright 2023 RisingWave Labs
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.risingwave.functions;
+
+import org.apache.arrow.memory.BufferAllocator;
+import org.apache.arrow.vector.VectorSchemaRoot;
+import org.apache.arrow.vector.types.pojo.Schema;
+
+import java.lang.invoke.MethodHandle;
+import java.lang.invoke.MethodHandles;
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.lang.reflect.Method;
+import java.lang.reflect.Modifier;
+
+/**
+ * Base class for a batch-processing user-defined function.
+ */
+abstract class UserDefinedFunctionBatch {
+    protected Schema inputSchema;
+    protected Schema outputSchema;
+    protected BufferAllocator allocator;
+
+    /**
+     * Get the input schema of the function.
+     */
+    Schema getInputSchema() {
+        return inputSchema;
+    }
+
+    /**
+     * Get the output schema of the function.
+     */
+    Schema getOutputSchema() {
+        return outputSchema;
+    }
+
+    /**
+     * Evaluate the function by processing a batch of input data.
+     *
+     * @param batch the input data batch to process
+     * @return an iterator over the output data batches
+     */
+    abstract Iterator<VectorSchemaRoot> evalBatch(VectorSchemaRoot batch);
+}
+
+/**
+ * Utility class for reflection.
+ */
+class Reflection {
+    /**
+     * Get the method named <code>eval</code>.
+     */
+    static Method getEvalMethod(UserDefinedFunction obj) {
+        var methods = new ArrayList<Method>();
+        for (Method method : obj.getClass().getDeclaredMethods()) {
+            if (method.getName().equals("eval")) {
+                methods.add(method);
+            }
+        }
+        if (methods.size() != 1) {
+            throw new IllegalArgumentException(
+                    "Exactly one eval method must be defined for class " + obj.getClass().getName());
+        }
+        var method = methods.get(0);
+        if (Modifier.isStatic(method.getModifiers())) {
+            throw new IllegalArgumentException(
+                    "The eval method should not be static for class " + obj.getClass().getName());
+        }
+        return method;
+    }
+
+    /**
+     * Get the method handle of the given method.
+     */
+    static MethodHandle getMethodHandle(Method method) {
+        var lookup = MethodHandles.lookup();
+        try {
+            return lookup.unreflect(method);
+        } catch (IllegalAccessException e) {
+            throw new IllegalArgumentException(
+                    "The eval method must be public for class " + method.getDeclaringClass().getName());
+        }
+    }
+}
diff --git a/java/udf/src/main/java/com/risingwave/functions/example/UdfExample.java b/java/udf/src/main/java/com/risingwave/functions/example/UdfExample.java
new file mode 100644
index 0000000000000..bc913813f460f
--- /dev/null
+++ b/java/udf/src/main/java/com/risingwave/functions/example/UdfExample.java
@@ -0,0 +1,185 @@
+// Copyright 2023 RisingWave Labs
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.risingwave.functions.example;
+
+import java.io.IOException;
+import java.math.BigDecimal;
+import java.math.BigInteger;
+import java.nio.ByteBuffer;
+import java.util.Iterator;
+import java.util.stream.Stream;
+import java.util.stream.IntStream;
+
+import com.google.gson.Gson;
+
+import com.risingwave.functions.DataTypeHint;
+import com.risingwave.functions.ScalarFunction;
+import com.risingwave.functions.TableFunction;
+import com.risingwave.functions.UdfServer;
+
+public class UdfExample {
+    public static void main(String[] args) throws IOException {
+        try (var server = new UdfServer("0.0.0.0", 8815)) {
+            server.addFunction("int_42", new Int42());
+            server.addFunction("gcd", new Gcd());
+            server.addFunction("gcd3", new Gcd3());
+            server.addFunction("to_string", new ToString());
+            server.addFunction("extract_tcp_info", new ExtractTcpInfo());
+            server.addFunction("hex_to_dec", new HexToDec());
+            server.addFunction("array_access", new ArrayAccess());
+            server.addFunction("jsonb_access", new JsonbAccess());
+            server.addFunction("jsonb_concat", new JsonbConcat());
+            server.addFunction("jsonb_array_identity", new JsonbArrayIdentity());
+            server.addFunction("jsonb_array_struct_identity", new JsonbArrayStructIdentity());
+            server.addFunction("series", new Series());
+            server.addFunction("split", new Split());
+
+            server.start();
+            server.awaitTermination();
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+
+    public static class Int42 implements ScalarFunction {
+        public int eval() {
+            return 42;
+        }
+    }
+
+    public static class Gcd implements ScalarFunction {
+        public int eval(int a, int b) {
+            while (b != 0) {
+                int temp = b;
+                b = a % b;
+                a = temp;
+            }
+            return a;
+        }
+    }
+
+    public static class Gcd3 implements ScalarFunction {
+        public int eval(int a, int b, int c) {
+            var gcd = new Gcd();
+            return gcd.eval(gcd.eval(a, b), c);
+        }
+    }
+
+    public static class ToString implements ScalarFunction {
+        public String eval(String s) {
+            return s;
+        }
+    }
+
+    public static class ExtractTcpInfo implements ScalarFunction {
+        public static class TcpPacketInfo {
+            public String srcAddr;
+            public String dstAddr;
+            public short srcPort;
+            public short dstPort;
+        }
+
+        public TcpPacketInfo eval(byte[] tcpPacket) {
+            var info = new TcpPacketInfo();
+            var buffer = ByteBuffer.wrap(tcpPacket);
+            info.srcAddr = intToIpAddr(buffer.getInt(12));
+            info.dstAddr = intToIpAddr(buffer.getInt(16));
+            info.srcPort = buffer.getShort(20);
+            info.dstPort = buffer.getShort(22);
+            return info;
+        }
+
+        static String intToIpAddr(int addr) {
+            return String.format("%d.%d.%d.%d", (addr >> 24) & 0xff, (addr >> 16) & 0xff, (addr >> 8) & 0xff,
+                    addr & 0xff);
+        }
+    }
+
+    public static class HexToDec implements ScalarFunction {
+        public BigDecimal eval(String hex) {
+            if (hex == null) {
+                return null;
+            }
+            return new BigDecimal(new BigInteger(hex, 16));
+        }
+    }
+
+    public static class ArrayAccess implements ScalarFunction {
+        public String eval(String[] array, int index) {
+            return array[index - 1];
+        }
+    }
+
+    public static class JsonbAccess implements ScalarFunction {
+        static Gson gson = new Gson();
+
+        public @DataTypeHint("JSONB") String eval(@DataTypeHint("JSONB") String json, int index) {
+            if (json == null)
+                return null;
+            var array = gson.fromJson(json, Object[].class);
+            if (index >= array.length || index < 0)
+                return null;
+            var obj = array[index];
+            return gson.toJson(obj);
+        }
+    }
+
+    public static class JsonbConcat implements ScalarFunction {
+        public @DataTypeHint("JSONB") String eval(@DataTypeHint("JSONB[]") String[] jsons) {
+            if (jsons == null)
+                return null;
+            return "[" + String.join(",", jsons) + "]";
+        }
+    }
+
+    public static class JsonbArrayIdentity implements ScalarFunction {
+        public @DataTypeHint("JSONB[]") String[] eval(@DataTypeHint("JSONB[]") String[] jsons) {
+            return jsons;
+        }
+    }
+
+    public static class JsonbArrayStructIdentity implements ScalarFunction {
+        public static class Row {
+            public @DataTypeHint("JSONB[]") String[] v;
+            public int len;
+        }
+
+        public Row eval(Row s) {
+            return s;
+        }
+    }
+
+    public static class Series implements TableFunction {
+        public Iterator<Integer> eval(int n) {
+            return IntStream.range(0, n).iterator();
+        }
+    }
+
+    public static class Split implements TableFunction {
+        public static class Row {
+            public String word;
+            public int length;
+        }
+
+        public Iterator<Row> eval(String str) {
+            return Stream.of(str.split(" ")).map(s -> {
+                Row row = new Row();
+                row.word = s;
+                row.length = s.length();
+                return row;
+            }).iterator();
+        }
+    }
+}
diff --git a/java/udf/src/test/java/com/risingwave/functions/TestUdfServer.java b/java/udf/src/test/java/com/risingwave/functions/TestUdfServer.java
new file mode 100644
index 0000000000000..da598fe3dd6d5
--- /dev/null
+++ b/java/udf/src/test/java/com/risingwave/functions/TestUdfServer.java
@@ -0,0 +1,109 @@
+// Copyright 2023 RisingWave Labs
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.risingwave.functions;
+
+import java.io.IOException;
+import org.apache.arrow.memory.BufferAllocator;
+import org.apache.arrow.memory.RootAllocator;
+import org.apache.arrow.vector.IntVector;
+import org.apache.arrow.vector.VarCharVector;
+import org.apache.arrow.vector.VectorSchemaRoot;
+import org.junit.jupiter.api.AfterAll;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.Test;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+import com.risingwave.functions.example.*;
+
+/**
+ * Unit test for simple App.
+ */
+public class TestUdfServer {
+    private static UdfClient client;
+    private static UdfServer server;
+    private static BufferAllocator allocator = new RootAllocator();
+
+    @BeforeAll
+    public static void setup() throws IOException {
+        server = new UdfServer("localhost", 0);
+        server.addFunction("gcd", new UdfExample.Gcd());
+        server.addFunction("to_string", new UdfExample.ToString());
+        server.addFunction("series", new UdfExample.Series());
+        server.start();
+
+        client = new UdfClient("localhost", server.getPort());
+    }
+
+    @AfterAll
+    public static void teardown() throws InterruptedException {
+        client.close();
+        server.close();
+    }
+
+    @Test
+    public void gcd() throws Exception {
+        var c0 = new IntVector("", allocator);
+        c0.allocateNew(1);
+        c0.set(0, 15);
+        c0.setValueCount(1);
+
+        var c1 = new IntVector("", allocator);
+        c1.allocateNew(1);
+        c1.set(0, 12);
+        c1.setValueCount(1);
+
+        var input = VectorSchemaRoot.of(c0, c1);
+
+        try (var stream = client.call("gcd", input)) {
+            var output = stream.getRoot();
+            assertTrue(stream.next());
+            assertEquals(output.contentToTSVString().trim(), "3");
+        }
+    }
+
+    @Test
+    public void to_string() throws Exception {
+        var c0 = new VarCharVector("", allocator);
+        c0.allocateNew(1);
+        c0.set(0, "string".getBytes());
+        c0.setValueCount(1);
+        var input = VectorSchemaRoot.of(c0);
+
+        try (var stream = client.call("to_string", input)) {
+            var output = stream.getRoot();
+            assertTrue(stream.next());
+            assertEquals(output.contentToTSVString().trim(), "string");
+        }
+    }
+
+    @Test
+    public void series() throws Exception {
+        var c0 = new IntVector("", allocator);
+        c0.allocateNew(3);
+        c0.set(0, 0);
+        c0.set(1, 1);
+        c0.set(2, 2);
+        c0.setValueCount(3);
+
+        var input = VectorSchemaRoot.of(c0);
+
+        try (var stream = client.call("series", input)) {
+            var output = stream.getRoot();
+            assertTrue(stream.next());
+            assertEquals(output.contentToTSVString(), "row_index\t\n1\t0\n2\t0\n2\t1\n");
+        }
+    }
+}
diff --git a/java/udf/src/test/java/com/risingwave/functions/UdfClient.java b/java/udf/src/test/java/com/risingwave/functions/UdfClient.java
new file mode 100644
index 0000000000000..4db47fc00f521
--- /dev/null
+++ b/java/udf/src/test/java/com/risingwave/functions/UdfClient.java
@@ -0,0 +1,54 @@
+// Copyright 2023 RisingWave Labs
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.risingwave.functions;
+
+import org.apache.arrow.flight.*;
+import org.apache.arrow.memory.RootAllocator;
+import org.apache.arrow.vector.VectorSchemaRoot;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class UdfClient implements AutoCloseable {
+
+    private FlightClient client;
+    private static final Logger logger = LoggerFactory.getLogger(UdfClient.class);
+
+    public UdfClient(String host, int port) {
+        var allocator = new RootAllocator();
+        var location = Location.forGrpcInsecure(host, port);
+        this.client = FlightClient.builder(allocator, location).build();
+    }
+
+    public void close() throws InterruptedException {
+        this.client.close();
+    }
+
+    public FlightInfo getFlightInfo(String functionName) {
+        var descriptor = FlightDescriptor.command(functionName.getBytes());
+        return client.getInfo(descriptor);
+    }
+
+    public FlightStream call(String functionName, VectorSchemaRoot root) {
+        var descriptor = FlightDescriptor.path(functionName);
+        var readerWriter = client.doExchange(descriptor);
+        var writer = readerWriter.getWriter();
+        var reader = readerWriter.getReader();
+
+        writer.start(root);
+        writer.putNext();
+        writer.completed();
+        return reader;
+    }
+}
diff --git a/src/batch/src/executor/table_function.rs b/src/batch/src/executor/table_function.rs
index 74e40295126d1..3032fdd876ad9 100644
--- a/src/batch/src/executor/table_function.rs
+++ b/src/batch/src/executor/table_function.rs
@@ -13,7 +13,7 @@
 // limitations under the License.
 
 use futures_async_stream::try_stream;
-use risingwave_common::array::DataChunk;
+use risingwave_common::array::{ArrayImpl, DataChunk};
 use risingwave_common::catalog::{Field, Schema};
 use risingwave_common::error::{Result, RwError};
 use risingwave_common::types::DataType;
@@ -53,8 +53,11 @@ impl TableFunctionExecutor {
         #[for_await]
         for chunk in self.table_function.eval(&dummy_chunk).await {
             let chunk = chunk?;
-            // remove the first column
-            yield chunk.split_column_at(1).1;
+            // remove the first column and expand the second column if its data type is struct
+            yield match chunk.column_at(1).as_ref() {
+                ArrayImpl::Struct(struct_array) => struct_array.into(),
+                _ => chunk.split_column_at(1).1,
+            };
         }
     }
 }
diff --git a/src/common/src/array/struct_array.rs b/src/common/src/array/struct_array.rs
index d344571af85da..dfb2ad721cfd0 100644
--- a/src/common/src/array/struct_array.rs
+++ b/src/common/src/array/struct_array.rs
@@ -154,15 +154,6 @@ pub struct StructArray {
     heap_size: usize,
 }
 
-impl StructArrayBuilder {
-    pub fn append_array_refs(&mut self, refs: Vec<ArrayRef>, len: usize) {
-        self.bitmap.append_n(len, true);
-        for (a, r) in self.children_array.iter_mut().zip_eq_fast(refs.iter()) {
-            a.append_array(r);
-        }
-    }
-}
-
 impl Array for StructArray {
     type Builder = StructArrayBuilder;
     type OwnedItem = StructValue;
diff --git a/src/expr/macro/src/gen.rs b/src/expr/macro/src/gen.rs
index a9cb555a0190d..a2f62c0e04efa 100644
--- a/src/expr/macro/src/gen.rs
+++ b/src/expr/macro/src/gen.rs
@@ -523,6 +523,18 @@ impl FunctionAttr {
                 .map(|i| quote! { self.return_type.as_struct().types().nth(#i).unwrap().clone() })
                 .collect()
         };
+        let build_value_array = if return_types.len() == 1 {
+            quote! { let [value_array] = value_arrays; }
+        } else {
+            quote! {
+                let bitmap = value_arrays[0].null_bitmap().clone();
+                let value_array = StructArray::new(
+                    self.return_type.as_struct().clone(),
+                    value_arrays.to_vec(),
+                    bitmap,
+                ).into_ref();
+            }
+        };
         let const_arg = match &self.prebuild {
             Some(_) => quote! { &self.const_arg },
             None => quote! {},
@@ -594,25 +606,24 @@ impl FunctionAttr {
                         let #arrays: &#arg_arrays = #array_refs.as_ref().into();
                         )*
 
-                        let mut index_builder = I64ArrayBuilder::new(self.chunk_size);
+                        let mut index_builder = I32ArrayBuilder::new(self.chunk_size);
                         #(let mut #builders = #builder_types::with_type(self.chunk_size, #return_types);)*
 
                         for (i, (row, visible)) in multizip((#(#arrays.iter(),)*)).zip_eq_fast(input.vis().iter()).enumerate() {
                             if let (#(Some(#inputs),)*) = row && visible {
                                 let iter = #fn_name(#(#inputs,)* #const_arg);
                                 for output in #iter {
-                                    index_builder.append(Some(i as i64));
+                                    index_builder.append(Some(i as i32));
                                     match #output {
                                         Some((#(#outputs),*)) => { #(#builders.append(Some(#outputs.as_scalar_ref()));)* }
                                         None => { #(#builders.append_null();)* }
                                     }
 
                                     if index_builder.len() == self.chunk_size {
-                                        let columns = vec![
-                                            std::mem::replace(&mut index_builder, I64ArrayBuilder::new(self.chunk_size)).finish().into_ref(),
-                                            #(std::mem::replace(&mut #builders, #builder_types::with_type(self.chunk_size, #return_types)).finish().into_ref(),)*
-                                        ];
-                                        yield DataChunk::new(columns, self.chunk_size);
+                                        let index_array = std::mem::replace(&mut index_builder, I32ArrayBuilder::new(self.chunk_size)).finish().into_ref();
+                                        let value_arrays = [#(std::mem::replace(&mut #builders, #builder_types::with_type(self.chunk_size, #return_types)).finish().into_ref()),*];
+                                        #build_value_array
+                                        yield DataChunk::new(vec![index_array, value_array], self.chunk_size);
                                     }
                                 }
                             }
@@ -620,11 +631,10 @@ impl FunctionAttr {
 
                         if index_builder.len() > 0 {
                             let len = index_builder.len();
-                            let columns = vec![
-                                index_builder.finish().into_ref(),
-                                #(#builders.finish().into_ref(),)*
-                            ];
-                            yield DataChunk::new(columns, len);
+                            let index_array = index_builder.finish().into_ref();
+                            let value_arrays = [#(#builders.finish().into_ref()),*];
+                            #build_value_array
+                            yield DataChunk::new(vec![index_array, value_array], len);
                         }
                     }
                 }
diff --git a/src/expr/src/expr/expr_nested_construct.rs b/src/expr/src/expr/expr_nested_construct.rs
index c7723b15fa0c7..ece26ed138258 100644
--- a/src/expr/src/expr/expr_nested_construct.rs
+++ b/src/expr/src/expr/expr_nested_construct.rs
@@ -16,7 +16,7 @@ use std::convert::TryFrom;
 use std::sync::Arc;
 
 use risingwave_common::array::{
-    ArrayBuilder, ArrayImpl, ArrayRef, DataChunk, ListArrayBuilder, ListValue, StructArrayBuilder,
+    ArrayBuilder, ArrayImpl, ArrayRef, DataChunk, ListArrayBuilder, ListValue, StructArray,
     StructValue,
 };
 use risingwave_common::row::OwnedRow;
@@ -45,11 +45,9 @@ impl Expression for NestedConstructExpression {
             columns.push(e.eval_checked(input).await?);
         }
 
-        if let DataType::Struct(_) = &self.data_type {
-            let mut builder =
-                StructArrayBuilder::with_type(input.capacity(), self.data_type.clone());
-            builder.append_array_refs(columns, input.capacity());
-            Ok(Arc::new(ArrayImpl::Struct(builder.finish())))
+        if let DataType::Struct(ty) = &self.data_type {
+            let array = StructArray::new(ty.clone(), columns, input.vis().to_bitmap());
+            Ok(Arc::new(ArrayImpl::Struct(array)))
         } else if let DataType::List { .. } = &self.data_type {
             let chunk = DataChunk::new(columns, input.vis().clone());
             let mut builder = ListArrayBuilder::with_type(input.capacity(), self.data_type.clone());
diff --git a/src/expr/src/table_function/mod.rs b/src/expr/src/table_function/mod.rs
index e996331ca5f70..c7f891632b651 100644
--- a/src/expr/src/table_function/mod.rs
+++ b/src/expr/src/table_function/mod.rs
@@ -12,16 +12,12 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-use std::sync::Arc;
-
 use either::Either;
 use futures_async_stream::try_stream;
 use futures_util::stream::BoxStream;
 use futures_util::StreamExt;
 use itertools::Itertools;
-use risingwave_common::array::{
-    Array, ArrayBuilder, ArrayImpl, ArrayRef, DataChunk, I64ArrayBuilder, StructArray,
-};
+use risingwave_common::array::{Array, ArrayBuilder, ArrayImpl, ArrayRef, DataChunk};
 use risingwave_common::types::{DataType, DataTypeName, DatumRef};
 use risingwave_pb::expr::project_set_select_item::SelectItem;
 use risingwave_pb::expr::table_function::PbType;
@@ -51,10 +47,10 @@ pub trait TableFunction: std::fmt::Debug + Sync + Send {
 
     /// # Contract of the output
     ///
-    /// The returned `DataChunk` contains at least two columns:
-    /// - The first column is the row indexes of input chunk. It should be monotonically increasing.
-    /// - The remaining columns are the output values. More than one columns are allowed, which will
-    ///   be transformed into a single `STRUCT` column later.
+    /// The returned `DataChunk` contains exact two columns:
+    /// - The first column is an I32Array containing row indexes of input chunk. It should be
+    ///   monotonically increasing.
+    /// - The second column is the output values. The data type of the column is `return_type`.
     ///
     /// i.e., for the `i`-th input row, the output rows are `(i, output_1)`, `(i, output_2)`, ...
     ///
@@ -219,12 +215,12 @@ impl ProjectSetSelectItem {
 /// let mut iter = TableFunctionOutputIter::new(
 ///     futures_util::stream::iter([
 ///         DataChunk::from_pretty(
-///             "I I
+///             "i I
 ///              0 0
 ///              1 1",
 ///         ),
 ///         DataChunk::from_pretty(
-///             "I I
+///             "i I
 ///              2 2
 ///              3 3",
 ///         ),
@@ -245,7 +241,7 @@ impl ProjectSetSelectItem {
 /// ```
 pub struct TableFunctionOutputIter<'a> {
     stream: BoxStream<'a, Result<DataChunk>>,
-    chunk: Option<(ArrayRef, ArrayRef)>,
+    chunk: Option<DataChunk>,
     index: usize,
 }
 
@@ -264,9 +260,9 @@ impl<'a> TableFunctionOutputIter<'a> {
 
     /// Gets the current row.
     pub fn peek(&'a self) -> Option<(usize, DatumRef<'a>)> {
-        let (indexes, values) = self.chunk.as_ref()?;
-        let index = indexes.as_int64().value_at(self.index).unwrap() as usize;
-        let value = values.value_at(self.index);
+        let chunk = self.chunk.as_ref()?;
+        let index = chunk.column_at(0).as_int32().value_at(self.index).unwrap() as usize;
+        let value = chunk.column_at(1).value_at(self.index);
         Some((index, value))
     }
 
@@ -274,10 +270,10 @@ impl<'a> TableFunctionOutputIter<'a> {
     ///
     /// This method is cancellation safe.
     pub async fn next(&mut self) -> Result<()> {
-        let Some((indexes, _)) = &self.chunk else {
+        let Some(chunk) = &self.chunk else {
             return Ok(());
         };
-        if self.index + 1 == indexes.len() {
+        if self.index + 1 == chunk.capacity() {
             // note: for cancellation safety, do not mutate self before await.
             self.pop_from_stream().await?;
             self.index = 0;
@@ -289,17 +285,7 @@ impl<'a> TableFunctionOutputIter<'a> {
 
     /// Gets the next chunk from stream.
     async fn pop_from_stream(&mut self) -> Result<()> {
-        let chunk = self.stream.next().await.transpose()?;
-        self.chunk = chunk.map(|c| {
-            let (c1, c2) = c.split_column_at(1);
-            let indexes = c1.column_at(0).clone();
-            let values = if c2.columns().len() > 1 {
-                Arc::new(StructArray::from(c2).into())
-            } else {
-                c2.column_at(0).clone()
-            };
-            (indexes, values)
-        });
+        self.chunk = self.stream.next().await.transpose()?;
         Ok(())
     }
 }
diff --git a/src/expr/src/table_function/repeat.rs b/src/expr/src/table_function/repeat.rs
index b73d0df82a8c1..255c8d9c0a68b 100644
--- a/src/expr/src/table_function/repeat.rs
+++ b/src/expr/src/table_function/repeat.rs
@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+use risingwave_common::array::I32ArrayBuilder;
+
 use super::*;
 
 /// Repeat an expression n times.
@@ -43,10 +45,10 @@ impl RepeatN {
     async fn eval_inner<'a>(&'a self, input: &'a DataChunk) {
         let array = self.expr.eval(input).await?;
 
-        let mut index_builder = I64ArrayBuilder::new(0x100);
+        let mut index_builder = I32ArrayBuilder::new(0x100);
         let mut value_builder = self.return_type().create_array_builder(0x100);
         for (i, value) in array.iter().enumerate() {
-            index_builder.append_n(self.n, Some(i as i64));
+            index_builder.append_n(self.n, Some(i as i32));
             value_builder.append_n(self.n, value);
         }
         let len = index_builder.len();
diff --git a/src/frontend/src/handler/create_function.rs b/src/frontend/src/handler/create_function.rs
index 8cf6cfe39d8af..120e6f6d17c79 100644
--- a/src/frontend/src/handler/create_function.rs
+++ b/src/frontend/src/handler/create_function.rs
@@ -138,18 +138,10 @@ pub async fn handle_create_function(
     let args = arrow_schema::Schema::new(arg_types.iter().map(|t| to_field(t.into())).collect());
     let returns = arrow_schema::Schema::new(match kind {
         Kind::Scalar(_) => vec![to_field(return_type.clone().into())],
-        Kind::Table(_) => {
-            let mut fields = vec![arrow_schema::Field::new(
-                "row_index",
-                arrow_schema::DataType::Int64,
-                true,
-            )];
-            match &return_type {
-                DataType::Struct(s) => fields.extend(s.types().map(|t| to_field(t.clone().into()))),
-                _ => fields.push(to_field(return_type.clone().into())),
-            }
-            fields
-        }
+        Kind::Table(_) => vec![
+            arrow_schema::Field::new("row_index", arrow_schema::DataType::Int32, true),
+            to_field(return_type.clone().into()),
+        ],
         _ => unreachable!(),
     });
     client
diff --git a/src/udf/python/risingwave/udf.py b/src/udf/python/risingwave/udf.py
index aeb90bf2f3c6b..853003b871e64 100644
--- a/src/udf/python/risingwave/udf.py
+++ b/src/udf/python/risingwave/udf.py
@@ -131,11 +131,10 @@ def len(self) -> int:
                 """Returns the number of rows in the RecordBatch being built."""
                 return len(self.columns[0])
 
-            def append(self, index: int, args: Tuple):
+            def append(self, index: int, value: Any):
                 """Appends a new row to the RecordBatch being built."""
                 self.columns[0].append(index)
-                for column, val in zip(self.columns[1:], args):
-                    column.append(val)
+                self.columns[1].append(value)
 
             def build(self) -> pa.RecordBatch:
                 """Builds the RecordBatch from the accumulated data and clears the state."""
@@ -153,10 +152,8 @@ def build(self) -> pa.RecordBatch:
         # Iterate through rows in the input RecordBatch
         for row_index in range(batch.num_rows):
             row = tuple(column[row_index].as_py() for column in batch)
-            for result_row in self.eval(*row):
-                if not isinstance(result_row, tuple):
-                    result_row = (result_row,)
-                builder.append(row_index, result_row)
+            for result in self.eval(*row):
+                builder.append(row_index, result)
                 if builder.len() == self.BATCH_SIZE:
                     yield builder.build()
         if builder.len() != 0:
@@ -200,6 +197,9 @@ class UserDefinedTableFunctionWrapper(TableFunction):
 
     def __init__(self, func, input_types, result_types, name=None):
         self._func = func
+        self._name = name or (
+            func.__name__ if hasattr(func, "__name__") else func.__class__.__name__
+        )
         self._input_schema = pa.schema(
             zip(
                 inspect.getfullargspec(func)[0],
@@ -207,11 +207,15 @@ def __init__(self, func, input_types, result_types, name=None):
             )
         )
         self._result_schema = pa.schema(
-            [("row_index", pa.int64())]
-            + [("", _to_data_type(t)) for t in _to_list(result_types)]
-        )
-        self._name = name or (
-            func.__name__ if hasattr(func, "__name__") else func.__class__.__name__
+            [
+                ("row_index", pa.int32()),
+                (
+                    self._name,
+                    pa.struct([("", _to_data_type(t)) for t in result_types])
+                    if isinstance(result_types, list)
+                    else _to_data_type(result_types),
+                ),
+            ]
         )
 
     def __call__(self, *args):
diff --git a/src/udf/python/setup.py b/src/udf/python/setup.py
index 85db2f059e608..6c169dfb10e3e 100644
--- a/src/udf/python/setup.py
+++ b/src/udf/python/setup.py
@@ -5,7 +5,7 @@
 
 setup(
     name="risingwave",
-    version="0.0.7",
+    version="0.0.8",
     author="RisingWave Labs",
     description="RisingWave Python API",
     long_description=long_description,
@@ -17,8 +17,6 @@
         "License :: OSI Approved :: Apache Software License",
     ],
     python_requires=">=3.8",
-    install_requires=['pyarrow'],
-    extras_require={
-        'test': ['pytest']
-    },
+    install_requires=["pyarrow"],
+    extras_require={"test": ["pytest"]},
 )

From 91770343feb4503de487affc34db444cd601c97c Mon Sep 17 00:00:00 2001
From: congyi wang <58715567+wcy-fdu@users.noreply.github.com>
Date: Tue, 13 Jun 2023 18:08:51 +0800
Subject: [PATCH 05/12] feat(metrics): monitor s3 sdk retry (#9790)

---
 Cargo.lock                                    |  8 ++++
 .../dashboards/risingwave-dev-dashboard.json  |  2 +-
 .../dashboards/risingwave-user-dashboard.json |  2 +-
 grafana/risingwave-dev-dashboard.dashboard.py | 15 +++++++
 grafana/risingwave-dev-dashboard.json         |  2 +-
 grafana/risingwave-user-dashboard.json        |  2 +-
 src/cmd/Cargo.toml                            |  1 +
 src/cmd/src/lib.rs                            | 24 ++++++-----
 src/cmd_all/Cargo.toml                        |  1 +
 src/cmd_all/src/bin/risingwave.rs             | 18 ++++----
 src/cmd_all/src/playground.rs                 |  5 ++-
 src/common/Cargo.toml                         |  1 +
 src/common/src/metrics.rs                     | 42 ++++++++++++++++++-
 src/compute/src/lib.rs                        |  7 +++-
 src/compute/src/server.rs                     |  3 +-
 src/object_store/src/object/object_metrics.rs | 10 +++++
 src/object_store/src/object/s3.rs             | 38 +++++++++++++++--
 src/storage/backup/cmd/Cargo.toml             |  1 +
 .../backup/cmd/src/bin/backup_restore.rs      |  5 ++-
 src/tests/compaction_test/Cargo.toml          |  1 +
 .../compaction_test/src/bin/compaction.rs     |  5 ++-
 .../compaction_test/src/bin/delete_range.rs   |  5 ++-
 src/tests/simulation/Cargo.toml               |  1 +
 src/tests/simulation/src/cluster.rs           |  2 +-
 src/tests/state_cleaning_test/Cargo.toml      |  1 +
 src/tests/state_cleaning_test/src/bin/main.rs |  5 ++-
 src/utils/runtime/Cargo.toml                  |  1 +
 src/utils/runtime/src/lib.rs                  | 10 +++--
 28 files changed, 175 insertions(+), 43 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index 1f4eac68794a1..1d31302a4417e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -5738,6 +5738,7 @@ version = "1.0.0-alpha"
 dependencies = [
  "clap 4.2.7",
  "madsim-tokio",
+ "prometheus",
  "risingwave_backup",
  "risingwave_meta",
  "risingwave_rt",
@@ -5833,6 +5834,7 @@ dependencies = [
  "anyhow",
  "clap 4.2.7",
  "madsim-tokio",
+ "prometheus",
  "risingwave_common",
  "risingwave_compactor",
  "risingwave_compute",
@@ -5855,6 +5857,7 @@ dependencies = [
  "console",
  "const-str",
  "madsim-tokio",
+ "prometheus",
  "risingwave_cmd",
  "risingwave_common",
  "risingwave_compactor",
@@ -5948,6 +5951,7 @@ dependencies = [
  "tinyvec",
  "toml 0.7.3",
  "tracing",
+ "tracing-subscriber",
  "twox-hash",
  "url",
  "uuid",
@@ -5995,6 +5999,7 @@ dependencies = [
  "futures",
  "itertools",
  "madsim-tokio",
+ "prometheus",
  "rand",
  "risingwave_common",
  "risingwave_compactor",
@@ -6576,6 +6581,7 @@ dependencies = [
  "madsim-tokio",
  "parking_lot 0.12.1",
  "pprof",
+ "prometheus",
  "risingwave_common",
  "tracing",
  "tracing-subscriber",
@@ -6602,6 +6608,7 @@ dependencies = [
  "paste",
  "pin-project",
  "pretty_assertions",
+ "prometheus",
  "rand",
  "risingwave_common",
  "risingwave_compactor",
@@ -6706,6 +6713,7 @@ dependencies = [
  "futures",
  "itertools",
  "madsim-tokio",
+ "prometheus",
  "regex",
  "risingwave_rt",
  "serde",
diff --git a/docker/dashboards/risingwave-dev-dashboard.json b/docker/dashboards/risingwave-dev-dashboard.json
index 91e5e7a89f7e4..e7fa5ffa5f34c 100644
--- a/docker/dashboards/risingwave-dev-dashboard.json
+++ b/docker/dashboards/risingwave-dev-dashboard.json
@@ -1 +1 @@
-{"__inputs":[],"annotations":{"list":[]},"description":"RisingWave Dev Dashboard","editable":true,"gnetId":null,"graphTooltip":0,"hideControls":false,"id":null,"links":[],"panels":[{"cacheTimeout":null,"collapsed":false,"datasource":null,"description":null,"editable":true,"error":false,"fieldConfig":{"defaults":{"thresholds":{"mode":"absolute","steps":[]}}},"gridPos":{"h":1,"w":24,"x":0,"y":0},"height":null,"hideTimeOverride":false,"id":1,"interval":null,"links":[],"maxDataPoints":100,"maxPerRow":null,"minSpan":null,"panels":[],"repeat":null,"repeatDirection":null,"span":null,"targets":[],"timeFrom":null,"timeShift":null,"title":"Actor/Table Id Info","transformations":[],"transparent":false,"type":"row"},{"cacheTimeout":null,"color":{"mode":"thresholds"},"columns":[],"datasource":{"type":"prometheus","uid":"risedev-prometheus"},"description":"Mapping from actor id to fragment id","editable":true,"error":false,"fieldConfig":{"defaults":{"custom":{"align":"auto","displayMode":"auto","filterable":true},"thresholds":{"mode":"absolute","steps":[]}},"overrides":[]},"fontSize":"100%","gridPos":{"h":8,"w":12,"x":0,"y":1},"height":null,"hideTimeOverride":false,"id":2,"interval":null,"links":[],"mappings":[],"maxDataPoints":100,"maxPerRow":null,"minSpan":null,"options":{"showHeader":true},"repeat":null,"repeatDirection":null,"span":6,"targets":[{"datasource":{"type":"prometheus","uid":"risedev-prometheus"},"expr":"actor_info{job=~\"$job\",instance=~\"$node\"}","format":"table","hide":false,"instant":true,"interval":"","intervalFactor":2,"legendFormat":"","metric":"","query":"actor_info{job=~\"$job\",instance=~\"$node\"}","refId":"","step":10,"target":""}],"timeFrom":null,"timeShift":null,"title":"Actor Id Info","transformations":[{"id":"organize","options":{"excludeByName":{"Time":true,"Value":true,"__name__":true,"instance":true,"job":true}}}],"transparent":false,"type":"table"},{"cacheTimeout":null,"color":{"mode":"thresholds"},"columns":[],"datasource":{"type":"prometheus","uid":"risedev-prometheus"},"description":"Mapping from table id to actor id and table name","editable":true,"error":false,"fieldConfig":{"defaults":{"custom":{"align":"auto","displayMode":"auto","filterable":true},"thresholds":{"mode":"absolute","steps":[]}},"overrides":[]},"fontSize":"100%","gridPos":{"h":8,"w":12,"x":12,"y":1},"height":null,"hideTimeOverride":false,"id":3,"interval":null,"links":[],"mappings":[],"maxDataPoints":100,"maxPerRow":null,"minSpan":null,"options":{"showHeader":true},"repeat":null,"repeatDirection":null,"span":6,"targets":[{"datasource":{"type":"prometheus","uid":"risedev-prometheus"},"expr":"table_info{job=~\"$job\",instance=~\"$node\"}","format":"table","hide":false,"instant":true,"interval":"","intervalFactor":2,"legendFormat":"","metric":"","query":"table_info{job=~\"$job\",instance=~\"$node\"}","refId":"","step":10,"target":""}],"timeFrom":null,"timeShift":null,"title":"Table Id Info","transformations":[{"id":"organize","options":{"excludeByName":{"Time":true,"Value":true,"__name__":true,"instance":true,"job":true}}}],"transparent":false,"type":"table"},{"cacheTimeout":null,"collapsed":false,"datasource":null,"description":null,"editable":true,"error":false,"fieldConfig":{"defaults":{"thresholds":{"mode":"absolute","steps":[]}}},"gridPos":{"h":1,"w":24,"x":0,"y":9},"height":null,"hideTimeOverride":false,"id":4,"interval":null,"links":[],"maxDataPoints":100,"maxPerRow":null,"minSpan":null,"panels":[],"repeat":null,"repeatDirection":null,"span":null,"targets":[],"timeFrom":null,"timeShift":null,"title":"Cluster Node","transformations":[],"transparent":false,"type":"row"},{"cacheTimeout":null,"datasource":{"type":"prometheus","uid":"risedev-prometheus"},"description":"The number of each type of RisingWave components 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One is the leader and the rest are the 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diff --git a/grafana/risingwave-dev-dashboard.dashboard.py b/grafana/risingwave-dev-dashboard.dashboard.py
index 2fe605b1766b9..bb127d32bcc6c 100644
--- a/grafana/risingwave-dev-dashboard.dashboard.py
+++ b/grafana/risingwave-dev-dashboard.dashboard.py
@@ -555,6 +555,21 @@ def section_object_storage(outer_panels):
                         )
                     ],
                 ),
+                panels.timeseries_ops(
+                    "Operation Retry Rate",
+                    "",
+                    [
+                        panels.target(
+                            f"sum(irate({metric('aws_sdk_retry_counts')}[$__rate_interval])) by (instance, job, type)",
+                            "{{type}} - {{job}} @ {{instance}}",
+                        ),
+
+                        panels.target(
+                            f"sum(irate({metric('s3_read_request_retry_count')}[$__rate_interval])) by (instance, job, type)",
+                            "{{type}} - {{job}} @ {{instance}}",
+                        )
+                    ],
+                ),
                 panels.timeseries_dollar(
                     "Estimated S3 Cost (Realtime)",
                     "There are two types of operations: 1. GET, SELECT, and DELETE, they cost 0.0004 USD per 1000 "
diff --git a/grafana/risingwave-dev-dashboard.json b/grafana/risingwave-dev-dashboard.json
index 91e5e7a89f7e4..e7fa5ffa5f34c 100644
--- a/grafana/risingwave-dev-dashboard.json
+++ b/grafana/risingwave-dev-dashboard.json
@@ -1 +1 @@
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diff --git a/src/cmd/Cargo.toml b/src/cmd/Cargo.toml
index 18076be5089ea..41cd278f954f6 100644
--- a/src/cmd/Cargo.toml
+++ b/src/cmd/Cargo.toml
@@ -21,6 +21,7 @@ normal = ["workspace-hack", "workspace-config", "task_stats_alloc"]
 [dependencies]
 anyhow = "1"
 clap = { version = "4", features = ["derive"] }
+prometheus = { version = "0.13" }
 risingwave_common = { path = "../common" }
 risingwave_compactor = { path = "../storage/compactor" }
 risingwave_compute = { path = "../compute" }
diff --git a/src/cmd/src/lib.rs b/src/cmd/src/lib.rs
index 494007fab048d..bf3035e1cd8a8 100644
--- a/src/cmd/src/lib.rs
+++ b/src/cmd/src/lib.rs
@@ -31,37 +31,39 @@ macro_rules! main {
         #[cfg_attr(coverage, no_coverage)]
         fn main() {
             let opts = clap::Parser::parse();
-            $crate::$component(opts);
+            let registry = prometheus::Registry::new();
+            $crate::$component(opts, registry);
         }
     };
 }
 
 // Entry point functions.
 
-pub fn compute(opts: ComputeNodeOpts) {
+pub fn compute(opts: ComputeNodeOpts, registry: prometheus::Registry) {
     risingwave_rt::init_risingwave_logger(
         risingwave_rt::LoggerSettings::new().enable_tokio_console(false),
+        registry.clone(),
     );
-    risingwave_rt::main_okk(risingwave_compute::start(opts));
+    risingwave_rt::main_okk(risingwave_compute::start(opts, registry));
 }
 
-pub fn meta(opts: MetaNodeOpts) {
-    risingwave_rt::init_risingwave_logger(risingwave_rt::LoggerSettings::new());
+pub fn meta(opts: MetaNodeOpts, registry: prometheus::Registry) {
+    risingwave_rt::init_risingwave_logger(risingwave_rt::LoggerSettings::new(), registry);
     risingwave_rt::main_okk(risingwave_meta::start(opts));
 }
 
-pub fn frontend(opts: FrontendOpts) {
-    risingwave_rt::init_risingwave_logger(risingwave_rt::LoggerSettings::new());
+pub fn frontend(opts: FrontendOpts, registry: prometheus::Registry) {
+    risingwave_rt::init_risingwave_logger(risingwave_rt::LoggerSettings::new(), registry);
     risingwave_rt::main_okk(risingwave_frontend::start(opts));
 }
 
-pub fn compactor(opts: CompactorOpts) {
-    risingwave_rt::init_risingwave_logger(risingwave_rt::LoggerSettings::new());
+pub fn compactor(opts: CompactorOpts, registry: prometheus::Registry) {
+    risingwave_rt::init_risingwave_logger(risingwave_rt::LoggerSettings::new(), registry);
     risingwave_rt::main_okk(risingwave_compactor::start(opts));
 }
 
-pub fn ctl(opts: CtlOpts) {
-    risingwave_rt::init_risingwave_logger(risingwave_rt::LoggerSettings::new());
+pub fn ctl(opts: CtlOpts, registry: prometheus::Registry) {
+    risingwave_rt::init_risingwave_logger(risingwave_rt::LoggerSettings::new(), registry);
 
     // Note: Use a simple current thread runtime for ctl.
     // When there's a heavy workload, multiple thread runtime seems to respond slowly. May need
diff --git a/src/cmd_all/Cargo.toml b/src/cmd_all/Cargo.toml
index cd45c4fe6dfb0..eff0cca5279c7 100644
--- a/src/cmd_all/Cargo.toml
+++ b/src/cmd_all/Cargo.toml
@@ -23,6 +23,7 @@ anyhow = "1"
 clap = { version = "4", features = ["cargo", "derive"] }
 console = "0.15"
 const-str = "0.5"
+prometheus = { version = "0.13" }
 risingwave_cmd = { path = "../cmd" }
 risingwave_common = { path = "../common" }
 risingwave_compactor = { path = "../storage/compactor" }
diff --git a/src/cmd_all/src/bin/risingwave.rs b/src/cmd_all/src/bin/risingwave.rs
index e48ab775666c1..c1dec0b3ea727 100644
--- a/src/cmd_all/src/bin/risingwave.rs
+++ b/src/cmd_all/src/bin/risingwave.rs
@@ -108,14 +108,14 @@ impl Component {
         fn parse_opts<T: FromArgMatches>(matches: &ArgMatches) -> T {
             T::from_arg_matches(matches).map_err(|e| e.exit()).unwrap()
         }
-
+        let registry = prometheus::Registry::new();
         match self {
-            Self::Compute => compute(parse_opts(matches)),
-            Self::Meta => meta(parse_opts(matches)),
-            Self::Frontend => frontend(parse_opts(matches)),
-            Self::Compactor => compactor(parse_opts(matches)),
-            Self::Ctl => ctl(parse_opts(matches)),
-            Self::Playground => playground(parse_opts(matches)),
+            Self::Compute => compute(parse_opts(matches), registry),
+            Self::Meta => meta(parse_opts(matches), registry),
+            Self::Frontend => frontend(parse_opts(matches), registry),
+            Self::Compactor => compactor(parse_opts(matches), registry),
+            Self::Ctl => ctl(parse_opts(matches), registry),
+            Self::Playground => playground(parse_opts(matches), registry),
         }
     }
 
@@ -188,10 +188,10 @@ fn main() -> Result<()> {
     Ok(())
 }
 
-fn playground(opts: PlaygroundOpts) {
+fn playground(opts: PlaygroundOpts, registry: prometheus::Registry) {
     let settings = risingwave_rt::LoggerSettings::new()
         .enable_tokio_console(false)
         .with_target("risingwave_storage", Level::WARN);
-    risingwave_rt::init_risingwave_logger(settings);
+    risingwave_rt::init_risingwave_logger(settings, registry);
     risingwave_rt::main_okk(risingwave_cmd_all::playground(opts)).unwrap();
 }
diff --git a/src/cmd_all/src/playground.rs b/src/cmd_all/src/playground.rs
index 7ff5893fe8be1..67142afb265e1 100644
--- a/src/cmd_all/src/playground.rs
+++ b/src/cmd_all/src/playground.rs
@@ -215,8 +215,9 @@ pub async fn playground(opts: PlaygroundOpts) -> Result<()> {
                 opts.insert(0, "compute-node".into());
                 tracing::info!("starting compute-node thread with cli args: {:?}", opts);
                 let opts = risingwave_compute::ComputeNodeOpts::parse_from(opts);
-                let _compute_handle =
-                    tokio::spawn(async move { risingwave_compute::start(opts).await });
+                let _compute_handle = tokio::spawn(async move {
+                    risingwave_compute::start(opts, prometheus::Registry::new()).await
+                });
             }
             RisingWaveService::Frontend(mut opts) => {
                 opts.insert(0, "frontend-node".into());
diff --git a/src/common/Cargo.toml b/src/common/Cargo.toml
index f21df0aa18a14..6bf54c4ee0516 100644
--- a/src/common/Cargo.toml
+++ b/src/common/Cargo.toml
@@ -89,6 +89,7 @@ tokio = { version = "0.2", package = "madsim-tokio", features = [
 toml = "0.7"
 tonic = { version = "0.2", package = "madsim-tonic" }
 tracing = "0.1"
+tracing-subscriber = "0.3.16"
 twox-hash = "1"
 url = "2"
 uuid = "1.2.2"
diff --git a/src/common/src/metrics.rs b/src/common/src/metrics.rs
index 44b0371f64c0c..bddd4447a7098 100644
--- a/src/common/src/metrics.rs
+++ b/src/common/src/metrics.rs
@@ -13,8 +13,12 @@
 // limitations under the License.
 
 use hytra::TrAdder;
-use prometheus::core::{Atomic, GenericGauge};
-
+use prometheus::core::{Atomic, AtomicU64, GenericCounter, GenericGauge};
+use prometheus::{register_int_counter_with_registry, Registry};
+use tracing::Subscriber;
+use tracing_subscriber::layer::Context;
+use tracing_subscriber::registry::LookupSpan;
+use tracing_subscriber::Layer;
 pub struct TrAdderAtomic(TrAdder<i64>);
 
 impl Atomic for TrAdderAtomic {
@@ -44,3 +48,37 @@ impl Atomic for TrAdderAtomic {
 }
 
 pub type TrAdderGauge = GenericGauge<TrAdderAtomic>;
+
+/// [`MetricsLayer`] is a struct used for monitoring the frequency of certain specific logs and
+/// counting them using Prometheus metrics. Currently, it is used to monitor the frequency of retry
+/// occurrences of aws sdk.
+pub struct MetricsLayer {
+    pub aws_sdk_retry_counts: GenericCounter<AtomicU64>,
+}
+
+impl<S> Layer<S> for MetricsLayer
+where
+    S: Subscriber + for<'a> LookupSpan<'a>,
+{
+    fn on_event(&self, _event: &tracing::Event<'_>, _ctx: Context<'_, S>) {
+        // Currently one retry will only generate one debug log,
+        // so we can monitor the number of retry only through the metadata target.
+        // Refer to <https://docs.rs/aws-smithy-client/0.55.3/src/aws_smithy_client/retry.rs.html>
+        self.aws_sdk_retry_counts.inc();
+    }
+}
+
+impl MetricsLayer {
+    pub fn new(registry: Registry) -> Self {
+        let aws_sdk_retry_counts = register_int_counter_with_registry!(
+            "aws_sdk_retry_counts",
+            "Total number of aws sdk retry happens",
+            registry
+        )
+        .unwrap();
+
+        Self {
+            aws_sdk_retry_counts,
+        }
+    }
+}
diff --git a/src/compute/src/lib.rs b/src/compute/src/lib.rs
index 682cc00736c1b..e265875af6dee 100644
--- a/src/compute/src/lib.rs
+++ b/src/compute/src/lib.rs
@@ -178,7 +178,10 @@ use std::pin::Pin;
 use crate::server::compute_node_serve;
 
 /// Start compute node
-pub fn start(opts: ComputeNodeOpts) -> Pin<Box<dyn Future<Output = ()> + Send>> {
+pub fn start(
+    opts: ComputeNodeOpts,
+    registry: prometheus::Registry,
+) -> Pin<Box<dyn Future<Output = ()> + Send>> {
     // WARNING: don't change the function signature. Making it `async fn` will cause
     // slow compile in release mode.
     Box::pin(async move {
@@ -200,7 +203,7 @@ pub fn start(opts: ComputeNodeOpts) -> Pin<Box<dyn Future<Output = ()> + Send>>
         tracing::info!("advertise addr is {}", advertise_addr);
 
         let (join_handle_vec, _shutdown_send) =
-            compute_node_serve(listen_addr, advertise_addr, opts).await;
+            compute_node_serve(listen_addr, advertise_addr, opts, registry).await;
 
         for join_handle in join_handle_vec {
             join_handle.await.unwrap();
diff --git a/src/compute/src/server.rs b/src/compute/src/server.rs
index cbcc755b82aec..5bcabfd20e36a 100644
--- a/src/compute/src/server.rs
+++ b/src/compute/src/server.rs
@@ -81,6 +81,7 @@ pub async fn compute_node_serve(
     listen_addr: SocketAddr,
     advertise_addr: HostAddr,
     opts: ComputeNodeOpts,
+    registry: prometheus::Registry,
 ) -> (Vec<JoinHandle<()>>, Sender<()>) {
     // Load the configuration.
     let config = load_config(&opts.config_path, Some(opts.override_config.clone()));
@@ -161,7 +162,7 @@ pub async fn compute_node_serve(
 
     let mut sub_tasks: Vec<(JoinHandle<()>, Sender<()>)> = vec![];
     // Initialize the metrics subsystem.
-    let registry = prometheus::Registry::new();
+
     monitor_process(&registry).unwrap();
     let source_metrics = Arc::new(SourceMetrics::new(registry.clone()));
     let hummock_metrics = Arc::new(HummockMetrics::new(registry.clone()));
diff --git a/src/object_store/src/object/object_metrics.rs b/src/object_store/src/object/object_metrics.rs
index 9379c3300fc70..ee557c59d041d 100644
--- a/src/object_store/src/object/object_metrics.rs
+++ b/src/object_store/src/object/object_metrics.rs
@@ -25,6 +25,7 @@ pub struct ObjectStoreMetrics {
     pub operation_latency: HistogramVec,
     pub operation_size: HistogramVec,
     pub failure_count: GenericCounterVec<AtomicU64>,
+    pub request_retry_count: GenericCounterVec<AtomicU64>,
 }
 
 impl ObjectStoreMetrics {
@@ -81,12 +82,21 @@ impl ObjectStoreMetrics {
         )
         .unwrap();
 
+        let request_retry_count = register_int_counter_vec_with_registry!(
+            "s3_read_request_retry_count",
+            "The number of retry times of object store request",
+            &["type"],
+            registry
+        )
+        .unwrap();
+
         Self {
             write_bytes,
             read_bytes,
             operation_latency,
             operation_size,
             failure_count,
+            request_retry_count,
         }
     }
 
diff --git a/src/object_store/src/object/s3.rs b/src/object_store/src/object/s3.rs
index 7561934a8e608..259979c45d137 100644
--- a/src/object_store/src/object/s3.rs
+++ b/src/object_store/src/object/s3.rs
@@ -360,9 +360,25 @@ impl ObjectStore for S3ObjectStore {
         let resp = tokio_retry::RetryIf::spawn(
             Self::get_retry_strategy(),
             || async {
-                self.obj_store_request(path, start_pos, end_pos)
+                match self
+                    .obj_store_request(path, start_pos, end_pos)
                     .send()
                     .await
+                {
+                    Ok(resp) => Ok(resp),
+                    Err(err) => {
+                        if let SdkError::DispatchFailure(e) = &err
+                            && e.is_timeout()
+                        {
+                            self.metrics
+                                .request_retry_count
+                                .with_label_values(&["read"])
+                                .inc();
+                        }
+
+                        Err(err)
+                    }
+                }
             },
             Self::should_retry,
         )
@@ -426,7 +442,23 @@ impl ObjectStore for S3ObjectStore {
         // retry if occurs AWS EC2 HTTP timeout error.
         let resp = tokio_retry::RetryIf::spawn(
             Self::get_retry_strategy(),
-            || async { self.obj_store_request(path, start_pos, None).send().await },
+            || async {
+                match self.obj_store_request(path, start_pos, None).send().await {
+                    Ok(resp) => Ok(resp),
+                    Err(err) => {
+                        if let SdkError::DispatchFailure(e) = &err
+                            && e.is_timeout()
+                        {
+                            self.metrics
+                                .request_retry_count
+                                .with_label_values(&["streaming_read"])
+                                .inc();
+                        }
+
+                        Err(err)
+                    }
+                }
+            },
             Self::should_retry,
         )
         .await?;
@@ -731,7 +763,7 @@ impl S3ObjectStore {
     fn should_retry(err: &SdkError<GetObjectError>) -> bool {
         if let SdkError::DispatchFailure(e) = err {
             if e.is_timeout() {
-                tracing::warn!("{:?} occurs, trying to retry S3 get_object request.", e);
+                tracing::warn!(target: "http_timeout_retry", "{:?} occurs, trying to retry S3 get_object request.", e);
                 return true;
             }
         }
diff --git a/src/storage/backup/cmd/Cargo.toml b/src/storage/backup/cmd/Cargo.toml
index f0c033044be87..649a8ce451246 100644
--- a/src/storage/backup/cmd/Cargo.toml
+++ b/src/storage/backup/cmd/Cargo.toml
@@ -15,6 +15,7 @@ normal = ["workspace-hack"]
 
 [dependencies]
 clap = { version = "4", features = ["derive"] }
+prometheus = { version = "0.13" }
 risingwave_backup = { path = "../../backup" }
 risingwave_meta = { path = "../../../meta" }
 risingwave_rt = { path = "../../../utils/runtime" }
diff --git a/src/storage/backup/cmd/src/bin/backup_restore.rs b/src/storage/backup/cmd/src/bin/backup_restore.rs
index 677748e34fffe..3941a024d0cd4 100644
--- a/src/storage/backup/cmd/src/bin/backup_restore.rs
+++ b/src/storage/backup/cmd/src/bin/backup_restore.rs
@@ -20,7 +20,10 @@ use risingwave_backup::error::BackupResult;
 fn main() -> BackupResult<()> {
     use clap::Parser;
     let opts = risingwave_meta::backup_restore::RestoreOpts::parse();
-    risingwave_rt::init_risingwave_logger(risingwave_rt::LoggerSettings::new());
+    risingwave_rt::init_risingwave_logger(
+        risingwave_rt::LoggerSettings::new(),
+        prometheus::Registry::new(),
+    );
     tokio::runtime::Builder::new_multi_thread()
         .enable_all()
         .build()
diff --git a/src/tests/compaction_test/Cargo.toml b/src/tests/compaction_test/Cargo.toml
index a1c5a6225915b..2a5f49c517d6c 100644
--- a/src/tests/compaction_test/Cargo.toml
+++ b/src/tests/compaction_test/Cargo.toml
@@ -21,6 +21,7 @@ bytes = "1"
 clap = { version = "4", features = ["derive"] }
 futures = { version = "0.3", default-features = false, features = ["alloc"] }
 itertools = "0.10"
+prometheus = { version = "0.13" }
 rand = "0.8"
 risingwave_common = { path = "../../common" }
 risingwave_compactor = { path = "../../storage/compactor" }
diff --git a/src/tests/compaction_test/src/bin/compaction.rs b/src/tests/compaction_test/src/bin/compaction.rs
index 9d55ac96e2b5c..96b956638ae37 100644
--- a/src/tests/compaction_test/src/bin/compaction.rs
+++ b/src/tests/compaction_test/src/bin/compaction.rs
@@ -20,7 +20,10 @@ fn main() {
 
     let opts = risingwave_compaction_test::CompactionTestOpts::parse();
 
-    risingwave_rt::init_risingwave_logger(risingwave_rt::LoggerSettings::new());
+    risingwave_rt::init_risingwave_logger(
+        risingwave_rt::LoggerSettings::new(),
+        prometheus::Registry::new(),
+    );
 
     risingwave_rt::main_okk(risingwave_compaction_test::start(opts))
 }
diff --git a/src/tests/compaction_test/src/bin/delete_range.rs b/src/tests/compaction_test/src/bin/delete_range.rs
index 4ff2dcc983170..28d3673392b39 100644
--- a/src/tests/compaction_test/src/bin/delete_range.rs
+++ b/src/tests/compaction_test/src/bin/delete_range.rs
@@ -20,7 +20,10 @@ fn main() {
 
     let opts = risingwave_compaction_test::CompactionTestOpts::parse();
 
-    risingwave_rt::init_risingwave_logger(risingwave_rt::LoggerSettings::new());
+    risingwave_rt::init_risingwave_logger(
+        risingwave_rt::LoggerSettings::new(),
+        prometheus::Registry::new(),
+    );
 
     risingwave_rt::main_okk(risingwave_compaction_test::start_delete_range(opts))
 }
diff --git a/src/tests/simulation/Cargo.toml b/src/tests/simulation/Cargo.toml
index 82bb8b85c9b38..ea9e30dc88942 100644
--- a/src/tests/simulation/Cargo.toml
+++ b/src/tests/simulation/Cargo.toml
@@ -25,6 +25,7 @@ madsim = "0.2.21"
 paste = "1"
 pin-project = "1.0"
 pretty_assertions = "1"
+prometheus = { version = "0.13" }
 rand = "0.8"
 rdkafka = { package = "madsim-rdkafka", version = "=0.2.14-alpha", features = ["cmake-build"] }
 risingwave_common = { path = "../../common" }
diff --git a/src/tests/simulation/src/cluster.rs b/src/tests/simulation/src/cluster.rs
index 14d27e6a7171a..0ee5e905c3d64 100644
--- a/src/tests/simulation/src/cluster.rs
+++ b/src/tests/simulation/src/cluster.rs
@@ -285,7 +285,7 @@ impl Cluster {
                 .name(format!("compute-{i}"))
                 .ip([192, 168, 3, i as u8].into())
                 .cores(conf.compute_node_cores)
-                .init(move || risingwave_compute::start(opts.clone()))
+                .init(move || risingwave_compute::start(opts.clone(), prometheus::Registry::new()))
                 .build();
         }
 
diff --git a/src/tests/state_cleaning_test/Cargo.toml b/src/tests/state_cleaning_test/Cargo.toml
index 73612dd00daf5..b10c9a9010d1a 100644
--- a/src/tests/state_cleaning_test/Cargo.toml
+++ b/src/tests/state_cleaning_test/Cargo.toml
@@ -19,6 +19,7 @@ chrono = "0.4"
 clap = { version = "4", features = ["derive"] }
 futures = { version = "0.3", default-features = false, features = ["alloc"] }
 itertools = "0.10"
+prometheus = { version = "0.13" }
 regex = "1"
 risingwave_rt = { path = "../../utils/runtime" }
 serde = { version = "1", features = ["derive"] }
diff --git a/src/tests/state_cleaning_test/src/bin/main.rs b/src/tests/state_cleaning_test/src/bin/main.rs
index 7c602c0cd8816..f3dcb4a8c116d 100644
--- a/src/tests/state_cleaning_test/src/bin/main.rs
+++ b/src/tests/state_cleaning_test/src/bin/main.rs
@@ -153,7 +153,10 @@ async fn validate_case(
 
 #[tokio::main]
 async fn main() -> anyhow::Result<()> {
-    risingwave_rt::init_risingwave_logger(risingwave_rt::LoggerSettings::new());
+    risingwave_rt::init_risingwave_logger(
+        risingwave_rt::LoggerSettings::new(),
+        prometheus::Registry::new(),
+    );
 
     let opt = TestOptions::parse();
 
diff --git a/src/utils/runtime/Cargo.toml b/src/utils/runtime/Cargo.toml
index 746aab4d4f9a8..fd32fd4bc0615 100644
--- a/src/utils/runtime/Cargo.toml
+++ b/src/utils/runtime/Cargo.toml
@@ -21,6 +21,7 @@ console-subscriber = "0.1.8"
 futures = { version = "0.3", default-features = false, features = ["alloc"] }
 parking_lot = { version = "0.12", features = ["deadlock_detection"] }
 pprof = { version = "0.11", features = ["flamegraph"] }
+prometheus = { version = "0.13" }
 risingwave_common = { path = "../../common" }
 tokio = { version = "0.2", package = "madsim-tokio", features = [
     "rt",
diff --git a/src/utils/runtime/src/lib.rs b/src/utils/runtime/src/lib.rs
index b079edc91b24a..1716ac98df4f5 100644
--- a/src/utils/runtime/src/lib.rs
+++ b/src/utils/runtime/src/lib.rs
@@ -21,8 +21,9 @@ use std::path::PathBuf;
 use std::time::Duration;
 
 use futures::Future;
+use risingwave_common::metrics::MetricsLayer;
 use tracing::Level;
-use tracing_subscriber::filter::{Directive, LevelFilter, Targets};
+use tracing_subscriber::filter::{Directive, Targets};
 use tracing_subscriber::layer::SubscriberExt;
 use tracing_subscriber::prelude::*;
 use tracing_subscriber::{filter, EnvFilter};
@@ -138,7 +139,7 @@ pub fn set_panic_hook() {
 ///   `RUST_LOG="info,risingwave_stream=info,risingwave_batch=info,risingwave_storage=info"`
 /// * `RW_QUERY_LOG_PATH`: the path to generate query log. If set, [`ENABLE_QUERY_LOG_FILE`] is
 ///   turned on.
-pub fn init_risingwave_logger(settings: LoggerSettings) {
+pub fn init_risingwave_logger(settings: LoggerSettings, registry: prometheus::Registry) {
     let mut layers = vec![];
 
     // fmt layer (formatting and logging to stdout)
@@ -156,8 +157,6 @@ pub fn init_risingwave_logger(settings: LoggerSettings) {
             .with_target("aws_sdk_ec2", Level::INFO)
             .with_target("aws_sdk_s3", Level::INFO)
             .with_target("aws_config", Level::WARN)
-            .with_target("aws_smithy_types", Level::INFO)
-            .with_target("aws_credential_types", LevelFilter::INFO)
             // Only enable WARN and ERROR for 3rd-party crates
             .with_target("aws_endpoint", Level::WARN)
             .with_target("hyper", Level::WARN)
@@ -281,6 +280,9 @@ pub fn init_risingwave_logger(settings: LoggerSettings) {
         });
     };
 
+    let filter = filter::Targets::new().with_target("aws_smithy_client::retry", Level::DEBUG);
+
+    layers.push(Box::new(MetricsLayer::new(registry).with_filter(filter)));
     tracing_subscriber::registry().with(layers).init();
 
     // TODO: add file-appender tracing subscriber in the future

From 2b2950d73102ed4eed78a4115330a7bd047266ae Mon Sep 17 00:00:00 2001
From: "Zhanxiang (Patrick) Huang" <hzxa21@hotmail.com>
Date: Tue, 13 Jun 2023 19:07:40 +0800
Subject: [PATCH 06/12] refactor: replace minstant/minitrace with tokio
 instant/tracing (#10302)

---
 Cargo.lock                                    | 196 -----------
 src/batch/Cargo.toml                          |   1 -
 src/batch/src/executor/manager.rs             |  11 +-
 src/batch/src/task/task_execution.rs          |  16 +-
 src/compute/src/server.rs                     |  10 -
 src/ctl/src/common/hummock_service.rs         |   1 -
 src/storage/Cargo.toml                        |   2 -
 .../src/hummock/compactor/compaction_utils.rs |   2 +-
 src/storage/src/hummock/compactor/mod.rs      |   2 +-
 src/storage/src/hummock/mod.rs                |   6 -
 src/storage/src/hummock/sstable_store.rs      |   3 +-
 src/storage/src/hummock/store/state_store.rs  |   9 +-
 src/storage/src/hummock/store/version.rs      |  11 +-
 src/storage/src/monitor/monitored_store.rs    |   7 +-
 src/storage/src/store_impl.rs                 |   2 -
 src/stream/Cargo.toml                         |   2 -
 src/stream/src/executor/actor.rs              |  36 +--
 src/stream/src/executor/dispatch.rs           |   3 +-
 src/stream/src/executor/hash_join.rs          |  15 +-
 src/stream/src/executor/merge.rs              |   5 +-
 src/stream/src/executor/mod.rs                |   1 -
 src/stream/src/executor/receiver.rs           |   5 +-
 src/stream/src/executor/wrapper/trace.rs      |  23 +-
 .../src/compaction_test_runner.rs             |   1 -
 .../src/delete_range_runner.rs                |   1 -
 src/tracing/Cargo.toml                        |   2 -
 src/tracing/src/lib.rs                        | 306 +++++++++---------
 src/workspace-hack/Cargo.toml                 |   4 +-
 28 files changed, 224 insertions(+), 459 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index 1d31302a4417e..3264713a8fa88 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -319,35 +319,6 @@ dependencies = [
  "tokio",
 ]
 
-[[package]]
-name = "async-executor"
-version = "1.5.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6fa3dc5f2a8564f07759c008b9109dc0d39de92a88d5588b8a5036d286383afb"
-dependencies = [
- "async-lock",
- "async-task",
- "concurrent-queue",
- "fastrand",
- "futures-lite",
- "slab",
-]
-
-[[package]]
-name = "async-global-executor"
-version = "2.3.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f1b6f5d7df27bd294849f8eec66ecfc63d11814df7a4f5d74168a2394467b776"
-dependencies = [
- "async-channel",
- "async-executor",
- "async-io",
- "async-lock",
- "blocking",
- "futures-lite",
- "once_cell",
-]
-
 [[package]]
 name = "async-io"
 version = "1.13.0"
@@ -388,32 +359,6 @@ dependencies = [
  "syn 2.0.15",
 ]
 
-[[package]]
-name = "async-std"
-version = "1.12.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "62565bb4402e926b29953c785397c6dc0391b7b446e45008b0049eb43cec6f5d"
-dependencies = [
- "async-channel",
- "async-global-executor",
- "async-io",
- "async-lock",
- "crossbeam-utils",
- "futures-channel",
- "futures-core",
- "futures-io",
- "futures-lite",
- "gloo-timers",
- "kv-log-macro",
- "log",
- "memchr",
- "once_cell",
- "pin-project-lite",
- "pin-utils",
- "slab",
- "wasm-bindgen-futures",
-]
-
 [[package]]
 name = "async-stream"
 version = "0.3.5"
@@ -462,12 +407,6 @@ dependencies = [
  "autocfg",
 ]
 
-[[package]]
-name = "atomic-waker"
-version = "1.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1181e1e0d1fce796a03db1ae795d67167da795f9cf4a39c37589e85ef57f26d3"
-
 [[package]]
 name = "atty"
 version = "0.2.14"
@@ -1111,21 +1050,6 @@ dependencies = [
  "generic-array",
 ]
 
-[[package]]
-name = "blocking"
-version = "1.3.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "77231a1c8f801696fc0123ec6150ce92cffb8e164a02afb9c8ddee0e9b65ad65"
-dependencies = [
- "async-channel",
- "async-lock",
- "async-task",
- "atomic-waker",
- "fastrand",
- "futures-lite",
- "log",
-]
-
 [[package]]
 name = "borsh"
 version = "0.10.3"
@@ -2747,18 +2671,6 @@ version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d2fabcfbdc87f4758337ca535fb41a6d701b65693ce38287d856d1674551ec9b"
 
-[[package]]
-name = "gloo-timers"
-version = "0.2.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9b995a66bb87bebce9a0f4a95aed01daca4872c050bfcb21653361c03bc35e5c"
-dependencies = [
- "futures-channel",
- "futures-core",
- "js-sys",
- "wasm-bindgen",
-]
-
 [[package]]
 name = "google-cloud-gax"
 version = "0.14.1"
@@ -3324,15 +3236,6 @@ dependencies = [
  "duct",
 ]
 
-[[package]]
-name = "kv-log-macro"
-version = "1.0.7"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0de8b303297635ad57c9f5059fd9cee7a47f8e8daa09df0fcd07dd39fb22977f"
-dependencies = [
- "log",
-]
-
 [[package]]
 name = "lazy_static"
 version = "1.4.0"
@@ -3510,9 +3413,6 @@ name = "log"
 version = "0.4.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "518ef76f2f87365916b142844c16d8fefd85039bc5699050210a7778ee1cd1de"
-dependencies = [
- "value-bag",
-]
 
 [[package]]
 name = "loom"
@@ -3837,43 +3737,6 @@ version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "68354c5c6bd36d73ff3feceb05efa59b6acb7626617f4962be322a825e61f79a"
 
-[[package]]
-name = "minitrace"
-version = "0.4.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "317e28b8c337ada2fd437611c241ce053d5b7f5480b79e945597996b87b1de96"
-dependencies = [
- "futures",
- "minitrace-macro",
- "minstant",
- "once_cell",
- "parking_lot 0.12.1",
- "pin-project",
-]
-
-[[package]]
-name = "minitrace-jaeger"
-version = "0.4.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7a5abe3273cd524b57b11925721595df5f8e957344c70e285a3a31c7e21523ac"
-dependencies = [
- "async-std",
- "minitrace",
- "thrift_codec",
-]
-
-[[package]]
-name = "minitrace-macro"
-version = "0.4.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "77814d165883613a1846517efdc50b88fabd9c210b7ff4d3745b38b99d539652"
-dependencies = [
- "proc-macro-error",
- "proc-macro2",
- "quote",
- "syn 1.0.109",
-]
-
 [[package]]
 name = "miniz_oxide"
 version = "0.6.2"
@@ -3892,17 +3755,6 @@ dependencies = [
  "adler",
 ]
 
-[[package]]
-name = "minstant"
-version = "0.1.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bc5dcfca9a0725105ac948b84cfeb69c3942814c696326743797215413f854b9"
-dependencies = [
- "ctor",
- "libc",
- "wasi 0.7.0",
-]
-
 [[package]]
 name = "mio"
 version = "0.8.6"
@@ -5763,7 +5615,6 @@ dependencies = [
  "itertools",
  "madsim-tokio",
  "madsim-tonic",
- "minitrace",
  "num-traits",
  "parking_lot 0.12.1",
  "paste",
@@ -6751,8 +6602,6 @@ dependencies = [
  "mach2",
  "madsim-tokio",
  "memcomparable",
- "minitrace",
- "minstant",
  "moka",
  "nix 0.25.1",
  "num-integer",
@@ -6816,8 +6665,6 @@ dependencies = [
  "madsim-tonic",
  "maplit",
  "memcomparable",
- "minitrace",
- "minstant",
  "multimap",
  "num-traits",
  "parking_lot 0.12.1",
@@ -6864,8 +6711,6 @@ dependencies = [
  "anyhow",
  "futures",
  "madsim-tokio",
- "minitrace",
- "minitrace-jaeger",
  "rand",
  "tracing",
  "workspace-hack",
@@ -7920,16 +7765,6 @@ dependencies = [
  "threadpool",
 ]
 
-[[package]]
-name = "thrift_codec"
-version = "0.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fce3200b189fd4733eb2bb22235755c8aa0361ba1c66b67db54893144d147279"
-dependencies = [
- "byteorder",
- "trackable",
-]
-
 [[package]]
 name = "tikv-jemalloc-ctl"
 version = "0.5.0"
@@ -8436,25 +8271,6 @@ dependencies = [
  "syn 1.0.109",
 ]
 
-[[package]]
-name = "trackable"
-version = "1.3.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b15bd114abb99ef8cee977e517c8f37aee63f184f2d08e3e6ceca092373369ae"
-dependencies = [
- "trackable_derive",
-]
-
-[[package]]
-name = "trackable_derive"
-version = "1.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ebeb235c5847e2f82cfe0f07eb971d1e5f6804b18dac2ae16349cc604380f82f"
-dependencies = [
- "quote",
- "syn 1.0.109",
-]
-
 [[package]]
 name = "triomphe"
 version = "0.1.8"
@@ -8605,12 +8421,6 @@ version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "830b7e5d4d90034032940e4ace0d9a9a057e7a45cd94e6c007832e39edb82f6d"
 
-[[package]]
-name = "value-bag"
-version = "1.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a4d330786735ea358f3bc09eea4caa098569c1c93f342d9aca0514915022fe7e"
-
 [[package]]
 name = "value-trait"
 version = "0.6.0"
@@ -8693,12 +8503,6 @@ dependencies = [
  "try-lock",
 ]
 
-[[package]]
-name = "wasi"
-version = "0.7.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b89c3ce4ce14bdc6fb6beaf9ec7928ca331de5df7e5ea278375642a2f478570d"
-
 [[package]]
 name = "wasi"
 version = "0.10.0+wasi-snapshot-preview1"
diff --git a/src/batch/Cargo.toml b/src/batch/Cargo.toml
index 64ad015670485..4b8b846c87cbd 100644
--- a/src/batch/Cargo.toml
+++ b/src/batch/Cargo.toml
@@ -26,7 +26,6 @@ futures-async-stream = { workspace = true }
 hashbrown = { workspace = true }
 hytra = "0.1.2"
 itertools = "0.10"
-minitrace = "0.4"
 num-traits = "0.2"
 parking_lot = { version = "0.12", features = ["arc_lock"] }
 paste = "1"
diff --git a/src/batch/src/executor/manager.rs b/src/batch/src/executor/manager.rs
index ce0e392acf85e..4caacad839b7b 100644
--- a/src/batch/src/executor/manager.rs
+++ b/src/batch/src/executor/manager.rs
@@ -14,7 +14,6 @@
 
 use async_stream::stream;
 use futures::stream::StreamExt;
-use minitrace::prelude::*;
 use risingwave_common::catalog::Schema;
 use risingwave_common::error::ErrorCode;
 use tokio::select;
@@ -22,6 +21,7 @@ use tokio::sync::watch::Receiver;
 
 use crate::executor::{BoxedDataChunkStream, BoxedExecutor, Executor};
 use crate::task::ShutdownMsg;
+use crate::tracing::Instrument;
 
 /// `ManagerExecutor` build on top of the underlying executor. For now, it do two things:
 /// 1. the duration of performance-critical operations will be traced, such as open/next/close.
@@ -62,13 +62,6 @@ impl Executor for ManagedExecutor {
             let span_name = format!("{input_desc}_next");
             let mut child_stream = self.child.execute();
 
-            let span = || {
-                let mut span = Span::enter_with_local_parent("next");
-                span.add_property(|| ("otel.name", span_name.to_string()));
-                span.add_property(|| ("next", input_desc.to_string()));
-                span
-            };
-
             loop {
                 select! {
                     // We prioritize abort signal over normal data chunks.
@@ -94,7 +87,7 @@ impl Executor for ManagedExecutor {
                             }
                         }
                     }
-                    res = child_stream.next().in_span(span()) => {
+                    res = child_stream.next().instrument(tracing::trace_span!("next", otel.name = span_name.as_str(), next = input_desc)) => {
                         if let Some(chunk) = res {
                             match chunk {
                                 Ok(chunk) => {
diff --git a/src/batch/src/task/task_execution.rs b/src/batch/src/task/task_execution.rs
index 8d6636a983f5b..0f5bea59cd341 100644
--- a/src/batch/src/task/task_execution.rs
+++ b/src/batch/src/task/task_execution.rs
@@ -21,7 +21,6 @@ use std::sync::Arc;
 use std::time::Duration;
 
 use futures::StreamExt;
-use minitrace::prelude::*;
 use parking_lot::Mutex;
 use risingwave_common::array::DataChunk;
 use risingwave_common::error::{ErrorCode, Result, RwError};
@@ -34,6 +33,7 @@ use risingwave_pb::task_service::{GetDataResponse, TaskInfoResponse};
 use tokio::select;
 use tokio::task::JoinHandle;
 use tokio_metrics::TaskMonitor;
+use tracing::Instrument;
 
 use crate::error::BatchError::SenderError;
 use crate::error::{to_rw_error, BatchError, Result as BatchResult};
@@ -393,19 +393,17 @@ impl<C: BatchTaskContext> BatchTaskExecution<C> {
                 // We should only pass a reference of sender to execution because we should only
                 // close it after task error has been set.
                 t_1.run(exec, sender, state_tx.as_mut())
-                    .in_span({
-                        let mut span = Span::enter_with_local_parent("batch_execute");
-                        span.add_property(|| ("task_id", task_id.task_id.to_string()));
-                        span.add_property(|| ("stage_id", task_id.stage_id.to_string()));
-                        span.add_property(|| ("query_id", task_id.query_id.to_string()));
-                        span
-                    })
+                    .instrument(tracing::trace_span!("batch_execute",
+                        task_id = ?task_id.task_id,
+                        stage_id = ?task_id.stage_id,
+                        query_id = ?task_id.query_id))
                     .await;
             };
 
             if let Some(batch_metrics) = batch_metrics {
                 let monitor = TaskMonitor::new();
-                let instrumented_task = AssertUnwindSafe(monitor.instrument(task(task_id.clone())));
+                let instrumented_task =
+                    AssertUnwindSafe(TaskMonitor::instrument(&monitor, task(task_id.clone())));
                 if let Err(error) = instrumented_task.rw_catch_unwind().await {
                     error!("Batch task {:?} panic: {:?}", task_id, error);
                 }
diff --git a/src/compute/src/server.rs b/src/compute/src/server.rs
index 5bcabfd20e36a..be0af8215ca86 100644
--- a/src/compute/src/server.rs
+++ b/src/compute/src/server.rs
@@ -192,16 +192,6 @@ pub async fn compute_node_serve(
         state_store_metrics.clone(),
         object_store_metrics,
         TieredCacheMetricsBuilder::new(registry.clone()),
-        if config.streaming.enable_jaeger_tracing {
-            Arc::new(
-                risingwave_tracing::RwTracingService::new(risingwave_tracing::TracingConfig::new(
-                    "127.0.0.1:6831".to_string(),
-                ))
-                .unwrap(),
-            )
-        } else {
-            Arc::new(risingwave_tracing::RwTracingService::disabled())
-        },
         storage_metrics.clone(),
         compactor_metrics.clone(),
     )
diff --git a/src/ctl/src/common/hummock_service.rs b/src/ctl/src/common/hummock_service.rs
index 4e1098118da29..6c23a2cbf390c 100644
--- a/src/ctl/src/common/hummock_service.rs
+++ b/src/ctl/src/common/hummock_service.rs
@@ -137,7 +137,6 @@ For `./risedev apply-compose-deploy` users,
             metrics.state_store_metrics.clone(),
             metrics.object_store_metrics.clone(),
             TieredCacheMetricsBuilder::unused(),
-            Arc::new(risingwave_tracing::RwTracingService::disabled()),
             metrics.storage_metrics.clone(),
             metrics.compactor_metrics.clone(),
         )
diff --git a/src/storage/Cargo.toml b/src/storage/Cargo.toml
index 347dff9f4bd26..7125f72213974 100644
--- a/src/storage/Cargo.toml
+++ b/src/storage/Cargo.toml
@@ -31,8 +31,6 @@ itertools = "0.10"
 libc = "0.2"
 lz4 = "1.23.1"
 memcomparable = "0.2"
-minitrace = "0.4"
-minstant = "0.1"
 num-integer = "0.1"
 parking_lot = "0.12"
 prometheus = { version = "0.13", features = ["process"] }
diff --git a/src/storage/src/hummock/compactor/compaction_utils.rs b/src/storage/src/hummock/compactor/compaction_utils.rs
index 68459951325a0..101b4d8656e79 100644
--- a/src/storage/src/hummock/compactor/compaction_utils.rs
+++ b/src/storage/src/hummock/compactor/compaction_utils.rs
@@ -18,7 +18,6 @@ use std::sync::atomic::{AtomicU64, Ordering};
 use std::sync::Arc;
 
 use itertools::Itertools;
-use minstant::Instant;
 use risingwave_common::constants::hummock::CompactionFilterFlag;
 use risingwave_hummock_sdk::key::FullKey;
 use risingwave_hummock_sdk::key_range::KeyRange;
@@ -26,6 +25,7 @@ use risingwave_hummock_sdk::prost_key_range::KeyRangeExt;
 use risingwave_hummock_sdk::table_stats::TableStatsMap;
 use risingwave_hummock_sdk::{HummockEpoch, KeyComparator};
 use risingwave_pb::hummock::{compact_task, CompactTask, KeyRange as KeyRange_vec, SstableInfo};
+use tokio::time::Instant;
 
 pub use super::context::CompactorContext;
 use crate::filter_key_extractor::FilterKeyExtractorImpl;
diff --git a/src/storage/src/hummock/compactor/mod.rs b/src/storage/src/hummock/compactor/mod.rs
index 1d2931b18e657..585fbb937b6ee 100644
--- a/src/storage/src/hummock/compactor/mod.rs
+++ b/src/storage/src/hummock/compactor/mod.rs
@@ -495,7 +495,7 @@ impl Compactor {
 
                 // This inner loop is to consume stream or report task progress.
                 'consume_stream: loop {
-                    let message = tokio::select! {
+                    let message: Option<Result<SubscribeCompactTasksResponse, _>> = tokio::select! {
                         _ = task_progress_interval.tick() => {
                             let mut progress_list = Vec::new();
                             for (&task_id, progress) in task_progress.lock().iter() {
diff --git a/src/storage/src/hummock/mod.rs b/src/storage/src/hummock/mod.rs
index 61a94c2914c52..8ef29bc423b1f 100644
--- a/src/storage/src/hummock/mod.rs
+++ b/src/storage/src/hummock/mod.rs
@@ -123,8 +123,6 @@ pub struct HummockStorage {
 
     read_version_mapping: Arc<ReadVersionMappingType>,
 
-    tracing: Arc<risingwave_tracing::RwTracingService>,
-
     backup_reader: BackupReaderRef,
 
     /// current_epoch < min_current_epoch cannot be read.
@@ -143,7 +141,6 @@ impl HummockStorage {
         notification_client: impl NotificationClient,
         filter_key_extractor_manager: Arc<FilterKeyExtractorManager>,
         state_store_metrics: Arc<HummockStateStoreMetrics>,
-        tracing: Arc<risingwave_tracing::RwTracingService>,
         compactor_metrics: Arc<CompactorMetrics>,
     ) -> HummockResult<Self> {
         let sstable_object_id_manager = Arc::new(SstableObjectIdManager::new(
@@ -217,7 +214,6 @@ impl HummockStorage {
                 shutdown_sender: event_tx,
             }),
             read_version_mapping: hummock_event_handler.read_version_mapping(),
-            tracing,
             backup_reader,
             min_current_epoch,
             write_limiter,
@@ -244,7 +240,6 @@ impl HummockStorage {
             self.hummock_version_reader.clone(),
             self.hummock_event_sender.clone(),
             self.buffer_tracker.get_memory_limiter().clone(),
-            self.tracing.clone(),
             self.write_limiter.clone(),
             option,
         )
@@ -332,7 +327,6 @@ impl HummockStorage {
             notification_client,
             Arc::new(FilterKeyExtractorManager::default()),
             Arc::new(HummockStateStoreMetrics::unused()),
-            Arc::new(risingwave_tracing::RwTracingService::disabled()),
             Arc::new(CompactorMetrics::unused()),
         )
         .await
diff --git a/src/storage/src/hummock/sstable_store.rs b/src/storage/src/hummock/sstable_store.rs
index 4d9c615f1f846..3b0f6ed481ea1 100644
--- a/src/storage/src/hummock/sstable_store.rs
+++ b/src/storage/src/hummock/sstable_store.rs
@@ -29,6 +29,7 @@ use risingwave_object_store::object::{
 };
 use risingwave_pb::hummock::SstableInfo;
 use tokio::task::JoinHandle;
+use tokio::time::Instant;
 use zstd::zstd_safe::WriteBuf;
 
 use super::utils::MemoryTracker;
@@ -393,7 +394,7 @@ impl SstableStore {
                         size: (sst.file_size - sst.meta_offset) as usize,
                     };
                     async move {
-                        let now = minstant::Instant::now();
+                        let now = Instant::now();
                         let buf = store
                             .read(&meta_path, Some(loc))
                             .await
diff --git a/src/storage/src/hummock/store/state_store.rs b/src/storage/src/hummock/store/state_store.rs
index 7c06b7fb3e790..a0f113c83a96d 100644
--- a/src/storage/src/hummock/store/state_store.rs
+++ b/src/storage/src/hummock/store/state_store.rs
@@ -18,13 +18,12 @@ use std::sync::Arc;
 
 use await_tree::InstrumentAwait;
 use bytes::Bytes;
-use minitrace::future::FutureExt;
 use parking_lot::RwLock;
 use risingwave_common::catalog::{TableId, TableOption};
 use risingwave_hummock_sdk::key::{map_table_key_range, TableKey, TableKeyRange};
 use risingwave_hummock_sdk::HummockEpoch;
 use tokio::sync::mpsc;
-use tracing::warn;
+use tracing::{warn, Instrument};
 
 use super::version::{HummockReadVersion, StagingData, VersionUpdate};
 use crate::error::StorageResult;
@@ -73,8 +72,6 @@ pub struct LocalHummockStorage {
 
     hummock_version_reader: HummockVersionReader,
 
-    tracing: Arc<risingwave_tracing::RwTracingService>,
-
     stats: Arc<HummockStateStoreMetrics>,
 
     write_limiter: WriteLimiterRef,
@@ -169,7 +166,7 @@ impl StateStoreRead for LocalHummockStorage {
     ) -> Self::IterFuture<'_> {
         assert!(epoch <= self.epoch());
         self.iter_inner(map_table_key_range(key_range), epoch, read_options)
-            .in_span(self.tracing.new_tracer("hummock_iter"))
+            .instrument(tracing::trace_span!("hummock_iter"))
     }
 }
 
@@ -426,7 +423,6 @@ impl LocalHummockStorage {
         hummock_version_reader: HummockVersionReader,
         event_sender: mpsc::UnboundedSender<HummockEvent>,
         memory_limiter: Arc<MemoryLimiter>,
-        tracing: Arc<risingwave_tracing::RwTracingService>,
         write_limiter: WriteLimiterRef,
         option: NewLocalOptions,
     ) -> Self {
@@ -442,7 +438,6 @@ impl LocalHummockStorage {
             event_sender,
             memory_limiter,
             hummock_version_reader,
-            tracing,
             stats,
             write_limiter,
         }
diff --git a/src/storage/src/hummock/store/version.rs b/src/storage/src/hummock/store/version.rs
index 01c0f8f81f5a5..91351f706516b 100644
--- a/src/storage/src/hummock/store/version.rs
+++ b/src/storage/src/hummock/store/version.rs
@@ -20,8 +20,6 @@ use std::sync::Arc;
 
 use bytes::Bytes;
 use itertools::Itertools;
-use minitrace::future::FutureExt;
-use minitrace::Span;
 use parking_lot::RwLock;
 use risingwave_common::catalog::TableId;
 use risingwave_hummock_sdk::key::{
@@ -31,6 +29,7 @@ use risingwave_hummock_sdk::key_range::KeyRangeCommon;
 use risingwave_hummock_sdk::{HummockEpoch, LocalSstableInfo};
 use risingwave_pb::hummock::{HummockVersionDelta, LevelType, SstableInfo};
 use sync_point::sync_point;
+use tracing::Instrument;
 
 use super::memtable::{ImmId, ImmutableMemtable};
 use super::state_store::StagingDataIterator;
@@ -692,7 +691,7 @@ impl HummockVersionReader {
             let table_holder = self
                 .sstable_store
                 .sstable(sstable_info, &mut local_stats)
-                .in_span(Span::enter_with_local_parent("get_sstable"))
+                .instrument(tracing::trace_span!("get_sstable"))
                 .await?;
 
             if !table_holder
@@ -784,7 +783,7 @@ impl HummockVersionReader {
                     let sstable = self
                         .sstable_store
                         .sstable(&sstables[0], &mut local_stats)
-                        .in_span(Span::enter_with_local_parent("get_sstable"))
+                        .instrument(tracing::trace_span!("get_sstable"))
                         .await?;
                     if !sstable.value().meta.monotonic_tombstone_events.is_empty()
                         && !read_options.ignore_range_tombstone
@@ -825,7 +824,7 @@ impl HummockVersionReader {
                     let sstable = self
                         .sstable_store
                         .sstable(sstable_info, &mut local_stats)
-                        .in_span(Span::enter_with_local_parent("get_sstable"))
+                        .instrument(tracing::trace_span!("get_sstable"))
                         .await?;
                     assert_eq!(sstable_info.get_object_id(), sstable.value().id);
                     if !sstable.value().meta.monotonic_tombstone_events.is_empty()
@@ -890,7 +889,7 @@ impl HummockVersionReader {
         );
         user_iter
             .rewind()
-            .in_span(Span::enter_with_local_parent("rewind"))
+            .instrument(tracing::trace_span!("rewind"))
             .await?;
         local_stats.found_key = user_iter.is_valid();
         local_stats.sub_iter_count = local_stats.staging_imm_iter_count
diff --git a/src/storage/src/monitor/monitored_store.rs b/src/storage/src/monitor/monitored_store.rs
index ba364509f0fbb..be902b87580cd 100644
--- a/src/storage/src/monitor/monitored_store.rs
+++ b/src/storage/src/monitor/monitored_store.rs
@@ -21,6 +21,7 @@ use futures::{Future, TryFutureExt, TryStreamExt};
 use futures_async_stream::try_stream;
 use risingwave_common::catalog::TableId;
 use risingwave_hummock_sdk::HummockReadEpoch;
+use tokio::time::Instant;
 use tracing::error;
 
 use super::MonitoredStorageMetrics;
@@ -69,7 +70,7 @@ impl<S> MonitoredStateStore<S> {
         iter_stream_future: impl Future<Output = StorageResult<St>> + 'a,
     ) -> StorageResult<MonitoredStateStoreIterStream<'s, St>> {
         // start time takes iterator build time into account
-        let start_time = minstant::Instant::now();
+        let start_time = Instant::now();
         let table_id_label = table_id.to_string();
 
         // wait for iterator creation (e.g. seek)
@@ -94,7 +95,7 @@ impl<S> MonitoredStateStore<S> {
             stats: MonitoredStateStoreIterStats {
                 total_items: 0,
                 total_size: 0,
-                scan_time: minstant::Instant::now(),
+                scan_time: Instant::now(),
                 storage_metrics: self.storage_metrics.clone(),
                 table_id,
             },
@@ -340,7 +341,7 @@ pub struct MonitoredStateStoreIter<S> {
 struct MonitoredStateStoreIterStats {
     total_items: usize,
     total_size: usize,
-    scan_time: minstant::Instant,
+    scan_time: Instant,
     storage_metrics: Arc<MonitoredStorageMetrics>,
 
     table_id: TableId,
diff --git a/src/storage/src/store_impl.rs b/src/storage/src/store_impl.rs
index 8b443b8b5f12f..66f5b4e84374b 100644
--- a/src/storage/src/store_impl.rs
+++ b/src/storage/src/store_impl.rs
@@ -546,7 +546,6 @@ impl StateStoreImpl {
         state_store_metrics: Arc<HummockStateStoreMetrics>,
         object_store_metrics: Arc<ObjectStoreMetrics>,
         tiered_cache_metrics_builder: TieredCacheMetricsBuilder,
-        tracing: Arc<risingwave_tracing::RwTracingService>,
         storage_metrics: Arc<MonitoredStorageMetrics>,
         compactor_metrics: Arc<CompactorMetrics>,
     ) -> StorageResult<Self> {
@@ -604,7 +603,6 @@ impl StateStoreImpl {
                     notification_client,
                     key_filter_manager,
                     state_store_metrics.clone(),
-                    tracing,
                     compactor_metrics.clone(),
                 )
                 .await?;
diff --git a/src/stream/Cargo.toml b/src/stream/Cargo.toml
index f25712ba65e4a..c5c9aa1e5ba32 100644
--- a/src/stream/Cargo.toml
+++ b/src/stream/Cargo.toml
@@ -35,8 +35,6 @@ local_stats_alloc = { path = "../utils/local_stats_alloc" }
 lru = { git = "https://github.com/risingwavelabs/lru-rs.git", rev = "cb2d7c7" }
 maplit = "1.0.2"
 memcomparable = "0.2"
-minitrace = "0.4"
-minstant = "0.1"
 multimap = "0.8"
 num-traits = "0.2"
 parking_lot = "0.12"
diff --git a/src/stream/src/executor/actor.rs b/src/stream/src/executor/actor.rs
index ed200b6a80006..6de4de3fff6a4 100644
--- a/src/stream/src/executor/actor.rs
+++ b/src/stream/src/executor/actor.rs
@@ -19,12 +19,12 @@ use anyhow::anyhow;
 use await_tree::InstrumentAwait;
 use futures::future::join_all;
 use hytra::TrAdder;
-use minitrace::prelude::*;
 use parking_lot::Mutex;
 use risingwave_common::error::ErrorSuppressor;
 use risingwave_common::util::epoch::EpochPair;
 use risingwave_expr::ExprError;
 use tokio_stream::StreamExt;
+use tracing::Instrument;
 
 use super::monitor::StreamingMetrics;
 use super::subtask::SubtaskHandle;
@@ -163,15 +163,13 @@ where
         let id = self.actor_context.id;
 
         let span_name = format!("actor_poll_{:03}", id);
-        let mut span = {
-            let mut span = Span::enter_with_local_parent("actor_poll");
-            span.add_property(|| ("otel.name", span_name.to_string()));
-            span.add_property(|| ("next", id.to_string()));
-            span.add_property(|| ("next", "Outbound".to_string()));
-            span.add_property(|| ("epoch", (-1).to_string()));
-            span
-        };
-
+        let mut span = tracing::trace_span!(
+            "actor_poll",
+            otel.name = span_name.as_str(),
+            next = id,
+            next = "Outbound",
+            epoch = -1
+        );
         let mut last_epoch: Option<EpochPair> = None;
         let mut stream = Box::pin(Box::new(self.consumer).execute());
 
@@ -179,7 +177,7 @@ where
         let result = loop {
             let barrier = match stream
                 .try_next()
-                .in_span(span)
+                .instrument(span)
                 .instrument_await(
                     last_epoch.map_or("Epoch <initial>".into(), |e| format!("Epoch {}", e.curr)),
                 )
@@ -200,14 +198,14 @@ where
 
             // Tracing related work
             last_epoch = Some(barrier.epoch);
-            span = {
-                let mut span = Span::enter_with_local_parent("actor_poll");
-                span.add_property(|| ("otel.name", span_name.to_string()));
-                span.add_property(|| ("next", id.to_string()));
-                span.add_property(|| ("next", "Outbound".to_string()));
-                span.add_property(|| ("epoch", barrier.epoch.curr.to_string()));
-                span
-            };
+
+            span = tracing::trace_span!(
+                "actor_poll",
+                otel.name = span_name.as_str(),
+                next = id,
+                next = "Outbound",
+                epoch = barrier.epoch.curr
+            );
         };
 
         spawn_blocking_drop_stream(stream).await;
diff --git a/src/stream/src/executor/dispatch.rs b/src/stream/src/executor/dispatch.rs
index ca528d7ff0209..4af4a33327057 100644
--- a/src/stream/src/executor/dispatch.rs
+++ b/src/stream/src/executor/dispatch.rs
@@ -29,6 +29,7 @@ use risingwave_common::util::iter_util::ZipEqFast;
 use risingwave_pb::stream_plan::update_mutation::PbDispatcherUpdate;
 use risingwave_pb::stream_plan::PbDispatcher;
 use smallvec::{smallvec, SmallVec};
+use tokio::time::Instant;
 use tracing::event;
 
 use super::exchange::output::{new_output, BoxedOutput};
@@ -65,7 +66,7 @@ impl DispatchExecutorInner {
     }
 
     async fn dispatch(&mut self, msg: Message) -> StreamResult<()> {
-        let start_time = minstant::Instant::now();
+        let start_time = Instant::now();
         match msg {
             Message::Watermark(watermark) => {
                 for dispatcher in &mut self.dispatchers {
diff --git a/src/stream/src/executor/hash_join.rs b/src/stream/src/executor/hash_join.rs
index 638c560054575..e671ac409732c 100644
--- a/src/stream/src/executor/hash_join.rs
+++ b/src/stream/src/executor/hash_join.rs
@@ -31,6 +31,7 @@ use risingwave_common::util::iter_util::ZipEqDebug;
 use risingwave_expr::expr::BoxedExpression;
 use risingwave_expr::ExprError;
 use risingwave_storage::StateStore;
+use tokio::time::Instant;
 
 use self::JoinType::{FullOuter, LeftOuter, LeftSemi, RightAnti, RightOuter, RightSemi};
 use super::barrier_align::*;
@@ -707,7 +708,7 @@ impl<K: HashKey, S: StateStore, const T: JoinTypePrimitive> HashJoinExecutor<K,
         // The first barrier message should be propagated.
         yield Message::Barrier(barrier);
         let actor_id_str = self.ctx.id.to_string();
-        let mut start_time = minstant::Instant::now();
+        let mut start_time = Instant::now();
 
         while let Some(msg) = aligned_stream
             .next()
@@ -735,7 +736,7 @@ impl<K: HashKey, S: StateStore, const T: JoinTypePrimitive> HashJoinExecutor<K,
                 }
                 AlignedMessage::Left(chunk) => {
                     let mut left_time = Duration::from_nanos(0);
-                    let mut left_start_time = minstant::Instant::now();
+                    let mut left_start_time = Instant::now();
                     #[for_await]
                     for chunk in Self::eq_join_oneside::<{ SideType::Left }>(
                         &self.ctx,
@@ -752,7 +753,7 @@ impl<K: HashKey, S: StateStore, const T: JoinTypePrimitive> HashJoinExecutor<K,
                     ) {
                         left_time += left_start_time.elapsed();
                         yield Message::Chunk(chunk?);
-                        left_start_time = minstant::Instant::now();
+                        left_start_time = Instant::now();
                     }
                     left_time += left_start_time.elapsed();
                     self.metrics
@@ -762,7 +763,7 @@ impl<K: HashKey, S: StateStore, const T: JoinTypePrimitive> HashJoinExecutor<K,
                 }
                 AlignedMessage::Right(chunk) => {
                     let mut right_time = Duration::from_nanos(0);
-                    let mut right_start_time = minstant::Instant::now();
+                    let mut right_start_time = Instant::now();
                     #[for_await]
                     for chunk in Self::eq_join_oneside::<{ SideType::Right }>(
                         &self.ctx,
@@ -779,7 +780,7 @@ impl<K: HashKey, S: StateStore, const T: JoinTypePrimitive> HashJoinExecutor<K,
                     ) {
                         right_time += right_start_time.elapsed();
                         yield Message::Chunk(chunk?);
-                        right_start_time = minstant::Instant::now();
+                        right_start_time = Instant::now();
                     }
                     right_time += right_start_time.elapsed();
                     self.metrics
@@ -788,7 +789,7 @@ impl<K: HashKey, S: StateStore, const T: JoinTypePrimitive> HashJoinExecutor<K,
                         .inc_by(right_time.as_nanos() as u64);
                 }
                 AlignedMessage::Barrier(barrier) => {
-                    let barrier_start_time = minstant::Instant::now();
+                    let barrier_start_time = Instant::now();
                     self.flush_data(barrier.epoch).await?;
 
                     // Update the vnode bitmap for state tables of both sides if asked.
@@ -829,7 +830,7 @@ impl<K: HashKey, S: StateStore, const T: JoinTypePrimitive> HashJoinExecutor<K,
                     yield Message::Barrier(barrier);
                 }
             }
-            start_time = minstant::Instant::now();
+            start_time = Instant::now();
         }
     }
 
diff --git a/src/stream/src/executor/merge.rs b/src/stream/src/executor/merge.rs
index 250340c1eacda..9f8b1366cc21d 100644
--- a/src/stream/src/executor/merge.rs
+++ b/src/stream/src/executor/merge.rs
@@ -21,6 +21,7 @@ use futures::stream::{FusedStream, FuturesUnordered, StreamFuture};
 use futures::{pin_mut, Stream, StreamExt};
 use futures_async_stream::try_stream;
 use risingwave_common::catalog::Schema;
+use tokio::time::Instant;
 
 use super::error::StreamExecutorError;
 use super::exchange::input::BoxedInput;
@@ -116,7 +117,7 @@ impl MergeExecutor {
         let mut upstream_fragment_id_str = self.upstream_fragment_id.to_string();
 
         // Channels that're blocked by the barrier to align.
-        let mut start_time = minstant::Instant::now();
+        let mut start_time = Instant::now();
         pin_mut!(select_all);
         while let Some(msg) = select_all.next().await {
             self.metrics
@@ -235,7 +236,7 @@ impl MergeExecutor {
             }
 
             yield msg;
-            start_time = minstant::Instant::now();
+            start_time = Instant::now();
         }
     }
 }
diff --git a/src/stream/src/executor/mod.rs b/src/stream/src/executor/mod.rs
index 069982aab0dd7..5b0fbf24597f4 100644
--- a/src/stream/src/executor/mod.rs
+++ b/src/stream/src/executor/mod.rs
@@ -22,7 +22,6 @@ use futures::stream::BoxStream;
 use futures::{Stream, StreamExt};
 use futures_async_stream::try_stream;
 use itertools::Itertools;
-use minitrace::prelude::*;
 use risingwave_common::array::StreamChunk;
 use risingwave_common::buffer::Bitmap;
 use risingwave_common::catalog::Schema;
diff --git a/src/stream/src/executor/receiver.rs b/src/stream/src/executor/receiver.rs
index 5dd16310c739d..3e22e843ed557 100644
--- a/src/stream/src/executor/receiver.rs
+++ b/src/stream/src/executor/receiver.rs
@@ -18,6 +18,7 @@ use futures::StreamExt;
 use futures_async_stream::try_stream;
 use itertools::Itertools;
 use risingwave_common::catalog::Schema;
+use tokio::time::Instant;
 
 use super::exchange::input::BoxedInput;
 use super::ActorContextRef;
@@ -119,7 +120,7 @@ impl Executor for ReceiverExecutor {
 
         let stream = #[try_stream]
         async move {
-            let mut start_time = minstant::Instant::now();
+            let mut start_time = Instant::now();
             while let Some(msg) = self.input.next().await {
                 self.metrics
                     .actor_input_buffer_blocking_duration_ns
@@ -196,7 +197,7 @@ impl Executor for ReceiverExecutor {
                 };
 
                 yield msg;
-                start_time = minstant::Instant::now();
+                start_time = Instant::now();
             }
         };
 
diff --git a/src/stream/src/executor/wrapper/trace.rs b/src/stream/src/executor/wrapper/trace.rs
index a46448991440d..61d661e1fb69b 100644
--- a/src/stream/src/executor/wrapper/trace.rs
+++ b/src/stream/src/executor/wrapper/trace.rs
@@ -17,8 +17,7 @@ use std::sync::Arc;
 use await_tree::InstrumentAwait;
 use futures::{pin_mut, StreamExt};
 use futures_async_stream::try_stream;
-use minitrace::prelude::*;
-use tracing::event;
+use tracing::{event, Instrument};
 
 use crate::executor::error::StreamExecutorError;
 use crate::executor::monitor::StreamingMetrics;
@@ -38,17 +37,19 @@ pub async fn trace(
     let span_name = format!("{}_{}_next", info.identity, input_pos);
     let actor_id_string = actor_id.to_string();
 
-    let span = || {
-        let mut span = Span::enter_with_local_parent("next");
-        span.add_property(|| ("otel.name", span_name.to_string()));
-        span.add_property(|| ("next", info.identity.to_string()));
-        span.add_property(|| ("input_pos", input_pos.to_string()));
-        span
-    };
-
     pin_mut!(input);
 
-    while let Some(message) = input.next().in_span(span()).await.transpose()? {
+    while let Some(message) = input
+        .next()
+        .instrument(tracing::trace_span!(
+            "next",
+            otel.name = span_name.as_str(),
+            next = info.identity,
+            input_pos = input_pos
+        ))
+        .await
+        .transpose()?
+    {
         if let Message::Chunk(chunk) = &message {
             if chunk.cardinality() > 0 {
                 metrics
diff --git a/src/tests/compaction_test/src/compaction_test_runner.rs b/src/tests/compaction_test/src/compaction_test_runner.rs
index 9255c07eba1eb..701c1a3f33a9e 100644
--- a/src/tests/compaction_test/src/compaction_test_runner.rs
+++ b/src/tests/compaction_test/src/compaction_test_runner.rs
@@ -719,7 +719,6 @@ pub async fn create_hummock_store_with_metrics(
         metrics.state_store_metrics.clone(),
         metrics.object_store_metrics.clone(),
         TieredCacheMetricsBuilder::unused(),
-        Arc::new(risingwave_tracing::RwTracingService::disabled()),
         metrics.storage_metrics.clone(),
         metrics.compactor_metrics.clone(),
     )
diff --git a/src/tests/compaction_test/src/delete_range_runner.rs b/src/tests/compaction_test/src/delete_range_runner.rs
index 29f9a26965ebd..d249ce455f9a3 100644
--- a/src/tests/compaction_test/src/delete_range_runner.rs
+++ b/src/tests/compaction_test/src/delete_range_runner.rs
@@ -197,7 +197,6 @@ async fn compaction_test(
         get_notification_client_for_test(env, hummock_manager_ref.clone(), worker_node),
         Arc::new(FilterKeyExtractorManager::default()),
         state_store_metrics.clone(),
-        Arc::new(risingwave_tracing::RwTracingService::disabled()),
         compactor_metrics.clone(),
     )
     .await?;
diff --git a/src/tracing/Cargo.toml b/src/tracing/Cargo.toml
index dd53225edcb2c..ebcd38e77e0e8 100644
--- a/src/tracing/Cargo.toml
+++ b/src/tracing/Cargo.toml
@@ -17,8 +17,6 @@ normal = ["workspace-hack"]
 [dependencies]
 anyhow = "1"
 futures = { version = "0.3", default-features = false, features = ["alloc", "executor"] }
-minitrace = "0.4"
-minitrace-jaeger = "0.4"
 rand = "0.8"
 tokio = { version = "0.2", package = "madsim-tokio", features = [
     "sync",
diff --git a/src/tracing/src/lib.rs b/src/tracing/src/lib.rs
index 9ff2d8d08b16d..9186530468716 100644
--- a/src/tracing/src/lib.rs
+++ b/src/tracing/src/lib.rs
@@ -12,156 +12,156 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-use std::env;
-use std::net::SocketAddr;
-use std::thread::JoinHandle;
-
-use anyhow::{Error, Result};
-use futures::channel::mpsc::{unbounded, UnboundedReceiver, UnboundedSender};
-use minitrace::prelude::*;
-
-pub struct RwTracingService {
-    tx: UnboundedSender<Collector>,
-    _join_handle: Option<JoinHandle<()>>,
-    enabled: bool,
-}
-
-pub struct TracingConfig {
-    pub jaeger_endpoint: Option<String>,
-    pub print_to_console: bool,
-    pub slow_request_threshold_ms: u64,
-}
-
-impl TracingConfig {
-    pub fn new(jaeger_endpoint: String) -> Self {
-        let slow_request_threshold_ms: u64 = env::var("RW_TRACE_SLOW_REQUEST_THRESHOLD_MS")
-            .ok()
-            .map_or_else(|| 100, |v| v.parse().unwrap());
-        let print_to_console = env::var("RW_TRACE_SLOW_REQUEST")
-            .ok()
-            .map_or_else(|| false, |v| v == "true");
-
-        Self {
-            jaeger_endpoint: Some(jaeger_endpoint),
-            print_to_console,
-            slow_request_threshold_ms,
-        }
-    }
-}
-
-impl RwTracingService {
-    /// Create a new tracing service instance. Spawn a background thread to observe slow requests.
-    pub fn new(config: TracingConfig) -> Result<Self> {
-        let (tx, rx) = unbounded();
-
-        let jaeger_addr: Option<SocketAddr> =
-            config.jaeger_endpoint.map(|x| x.parse()).transpose()?;
-
-        let join_handle = if cfg!(madsim) {
-            None
-        } else {
-            Some(Self::start_tracing_listener(
-                rx,
-                config.print_to_console,
-                config.slow_request_threshold_ms,
-                jaeger_addr,
-            ))
-        };
-
-        let tr = Self {
-            tx,
-            _join_handle: join_handle,
-            enabled: jaeger_addr.is_some(),
-        };
-        Ok(tr)
-    }
-
-    pub fn disabled() -> Self {
-        let (tx, _) = unbounded();
-        Self {
-            tx,
-            _join_handle: None,
-            enabled: false,
-        }
-    }
-
-    /// Create a new tracing event.
-    pub fn new_tracer(&self, event: &'static str) -> Span {
-        if self.enabled {
-            let (span, collector) = Span::root(event);
-            self.tx.unbounded_send(collector).unwrap();
-            span
-        } else {
-            Span::new_noop()
-        }
-    }
-
-    #[cfg(madsim)]
-    fn start_tracing_listener(
-        _rx: UnboundedReceiver<Collector>,
-        _print_to_console: bool,
-        _slow_request_threshold_ms: u64,
-        _jaeger_addr: Option<SocketAddr>,
-    ) -> JoinHandle<()> {
-        unreachable!()
-    }
-
-    #[cfg(not(madsim))]
-    fn start_tracing_listener(
-        rx: UnboundedReceiver<Collector>,
-        print_to_console: bool,
-        slow_request_threshold_ms: u64,
-        jaeger_addr: Option<SocketAddr>,
-    ) -> JoinHandle<()> {
-        use futures::StreamExt;
-        use rand::Rng;
-
-        tracing::info!(
-            "tracing service started with slow_request_threshold_ms={slow_request_threshold_ms}, print_to_console={print_to_console}"
-        );
-
-        std::thread::Builder::new()
-            .name("minitrace_listener".to_string())
-            .spawn(move || {
-                let func = move || {
-                    let rt = tokio::runtime::Builder::new_current_thread().build()?;
-                    let stream = rx.for_each_concurrent(None, |collector| async {
-                        let spans = collector.collect().await;
-                        if !spans.is_empty() {
-                            // print slow requests
-                            if print_to_console {
-                                // print requests > 100ms
-                                if spans[0].duration_ns >= slow_request_threshold_ms * 1_000_000 {
-                                    tracing::info!("{:?}", spans);
-                                }
-                            }
-                            // report spans to jaeger
-                            if let Some(ref jaeger_addr) = jaeger_addr {
-                                let trace_id = rand::thread_rng().gen::<u64>();
-                                let span_id = rand::thread_rng().gen::<u32>();
-                                let encoded = minitrace_jaeger::encode(
-                                    "risingwave".to_string(),
-                                    trace_id,
-                                    0,
-                                    span_id,
-                                    &spans,
-                                )
-                                .unwrap();
-                                if let Err(err) =
-                                    minitrace_jaeger::report(*jaeger_addr, &encoded).await
-                                {
-                                    tracing::warn!("failed to report spans to jaeger: {}", err);
-                                }
-                            }
-                        }
-                    });
-                    rt.block_on(stream);
-                    Ok::<_, Error>(())
-                };
-                if let Err(err) = func() {
-                    tracing::warn!("tracing thread exited: {:#}", err);
-                }
-            })
-            .unwrap()
-    }
-}
+// use std::env;
+// use std::net::SocketAddr;
+// use std::thread::JoinHandle;
+
+// use anyhow::{Error, Result};
+// use futures::channel::mpsc::{unbounded, UnboundedReceiver, UnboundedSender};
+// use minitrace::prelude::*;
+
+// pub struct RwTracingService {
+//     tx: UnboundedSender<Collector>,
+//     _join_handle: Option<JoinHandle<()>>,
+//     enabled: bool,
+// }
+
+// pub struct TracingConfig {
+//     pub jaeger_endpoint: Option<String>,
+//     pub print_to_console: bool,
+//     pub slow_request_threshold_ms: u64,
+// }
+
+// impl TracingConfig {
+//     pub fn new(jaeger_endpoint: String) -> Self {
+//         let slow_request_threshold_ms: u64 = env::var("RW_TRACE_SLOW_REQUEST_THRESHOLD_MS")
+//             .ok()
+//             .map_or_else(|| 100, |v| v.parse().unwrap());
+//         let print_to_console = env::var("RW_TRACE_SLOW_REQUEST")
+//             .ok()
+//             .map_or_else(|| false, |v| v == "true");
+
+//         Self {
+//             jaeger_endpoint: Some(jaeger_endpoint),
+//             print_to_console,
+//             slow_request_threshold_ms,
+//         }
+//     }
+// }
+
+// impl RwTracingService {
+//     /// Create a new tracing service instance. Spawn a background thread to observe slow
+// requests.     pub fn new(config: TracingConfig) -> Result<Self> {
+//         let (tx, rx) = unbounded();
+
+//         let jaeger_addr: Option<SocketAddr> =
+//             config.jaeger_endpoint.map(|x| x.parse()).transpose()?;
+
+//         let join_handle = if cfg!(madsim) {
+//             None
+//         } else {
+//             Some(Self::start_tracing_listener(
+//                 rx,
+//                 config.print_to_console,
+//                 config.slow_request_threshold_ms,
+//                 jaeger_addr,
+//             ))
+//         };
+
+//         let tr = Self {
+//             tx,
+//             _join_handle: join_handle,
+//             enabled: jaeger_addr.is_some(),
+//         };
+//         Ok(tr)
+//     }
+
+//     pub fn disabled() -> Self {
+//         let (tx, _) = unbounded();
+//         Self {
+//             tx,
+//             _join_handle: None,
+//             enabled: false,
+//         }
+//     }
+
+//     /// Create a new tracing event.
+//     pub fn new_tracer(&self, event: &'static str) -> Span {
+//         if self.enabled {
+//             let (span, collector) = Span::root(event);
+//             self.tx.unbounded_send(collector).unwrap();
+//             span
+//         } else {
+//             Span::new_noop()
+//         }
+//     }
+
+//     #[cfg(madsim)]
+//     fn start_tracing_listener(
+//         _rx: UnboundedReceiver<Collector>,
+//         _print_to_console: bool,
+//         _slow_request_threshold_ms: u64,
+//         _jaeger_addr: Option<SocketAddr>,
+//     ) -> JoinHandle<()> {
+//         unreachable!()
+//     }
+
+//     #[cfg(not(madsim))]
+//     fn start_tracing_listener(
+//         rx: UnboundedReceiver<Collector>,
+//         print_to_console: bool,
+//         slow_request_threshold_ms: u64,
+//         jaeger_addr: Option<SocketAddr>,
+//     ) -> JoinHandle<()> {
+//         use futures::StreamExt;
+//         use rand::Rng;
+
+//         tracing::info!(
+//             "tracing service started with slow_request_threshold_ms={slow_request_threshold_ms},
+// print_to_console={print_to_console}"         );
+
+//         std::thread::Builder::new()
+//             .name("minitrace_listener".to_string())
+//             .spawn(move || {
+//                 let func = move || {
+//                     let rt = tokio::runtime::Builder::new_current_thread().build()?;
+//                     let stream = rx.for_each_concurrent(None, |collector| async {
+//                         let spans = collector.collect().await;
+//                         if !spans.is_empty() {
+//                             // print slow requests
+//                             if print_to_console {
+//                                 // print requests > 100ms
+//                                 if spans[0].duration_ns >= slow_request_threshold_ms * 1_000_000
+// {                                     tracing::info!("{:?}", spans);
+//                                 }
+//                             }
+//                             // report spans to jaeger
+//                             if let Some(ref jaeger_addr) = jaeger_addr {
+//                                 let trace_id = rand::thread_rng().gen::<u64>();
+//                                 let span_id = rand::thread_rng().gen::<u32>();
+//                                 let encoded = minitrace_jaeger::encode(
+//                                     "risingwave".to_string(),
+//                                     trace_id,
+//                                     0,
+//                                     span_id,
+//                                     &spans,
+//                                 )
+//                                 .unwrap();
+//                                 if let Err(err) =
+//                                     minitrace_jaeger::report(*jaeger_addr, &encoded).await
+//                                 {
+//                                     tracing::warn!("failed to report spans to jaeger: {}", err);
+//                                 }
+//                             }
+//                         }
+//                     });
+//                     rt.block_on(stream);
+//                     Ok::<_, Error>(())
+//                 };
+//                 if let Err(err) = func() {
+//                     tracing::warn!("tracing thread exited: {:#}", err);
+//                 }
+//             })
+//             .unwrap()
+//     }
+// }
diff --git a/src/workspace-hack/Cargo.toml b/src/workspace-hack/Cargo.toml
index ccf705eb417de..a6d2e890f6ad5 100644
--- a/src/workspace-hack/Cargo.toml
+++ b/src/workspace-hack/Cargo.toml
@@ -53,7 +53,7 @@ lexical-write-float = { version = "0.8", default-features = false, features = ["
 lexical-write-integer = { version = "0.8", default-features = false, features = ["format", "std"] }
 libc = { version = "0.2", features = ["extra_traits"] }
 lock_api = { version = "0.4", default-features = false, features = ["arc_lock"] }
-log = { version = "0.4", default-features = false, features = ["kv_unstable", "std"] }
+log = { version = "0.4", default-features = false, features = ["std"] }
 madsim-rdkafka = { git = "https://github.com/madsim-rs/madsim.git", rev = "6d342a9", features = ["cmake-build", "gssapi", "ssl-vendored", "zstd"] }
 madsim-tokio = { version = "0.2", default-features = false, features = ["fs", "io-util", "macros", "net", "process", "rt", "rt-multi-thread", "signal", "sync", "time", "tracing"] }
 memchr = { version = "2" }
@@ -136,7 +136,7 @@ lexical-write-float = { version = "0.8", default-features = false, features = ["
 lexical-write-integer = { version = "0.8", default-features = false, features = ["format", "std"] }
 libc = { version = "0.2", features = ["extra_traits"] }
 lock_api = { version = "0.4", default-features = false, features = ["arc_lock"] }
-log = { version = "0.4", default-features = false, features = ["kv_unstable", "std"] }
+log = { version = "0.4", default-features = false, features = ["std"] }
 madsim-rdkafka = { git = "https://github.com/madsim-rs/madsim.git", rev = "6d342a9", features = ["cmake-build", "gssapi", "ssl-vendored", "zstd"] }
 madsim-tokio = { version = "0.2", default-features = false, features = ["fs", "io-util", "macros", "net", "process", "rt", "rt-multi-thread", "signal", "sync", "time", "tracing"] }
 memchr = { version = "2" }

From f971965509b5109b9fda5ae1e15d794e926d7bc8 Mon Sep 17 00:00:00 2001
From: zwang28 <70626450+zwang28@users.noreply.github.com>
Date: Tue, 13 Jun 2023 19:24:45 +0800
Subject: [PATCH 07/12] refactor(batch): maintain serving vnode mapping in meta
 node (#10004)

---
 Cargo.lock                                    |   1 +
 proto/meta.proto                              |   9 +
 risedev.yml                                   |   4 +-
 src/common/Cargo.toml                         |   1 +
 .../common_service/src/observer_manager.rs    |   1 +
 src/common/src/lib.rs                         |   2 +
 src/common/src/vnode_mapping/mod.rs           |  15 +
 .../src/vnode_mapping/vnode_placement.rs      | 305 ++++++++++++++++++
 src/frontend/src/observer/observer_manager.rs |  60 +++-
 .../src/scheduler/distributed/query.rs        |   5 +
 .../src/scheduler/distributed/stage.rs        |  22 +-
 src/frontend/src/scheduler/error.rs           |   7 +
 src/frontend/src/scheduler/local.rs           |  27 +-
 .../src/scheduler/worker_node_manager.rs      | 148 ++++-----
 src/meta/src/barrier/command.rs               |   2 +-
 src/meta/src/barrier/recovery.rs              |   2 +-
 src/meta/src/batch/mod.rs                     | 197 +++++++++++
 src/meta/src/dashboard/mod.rs                 |   1 -
 src/meta/src/hummock/manager/worker.rs        |   4 +-
 src/meta/src/lib.rs                           |   1 +
 src/meta/src/manager/catalog/fragment.rs      |  72 ++++-
 src/meta/src/manager/cluster.rs               |  20 +-
 src/meta/src/manager/notification.rs          |   7 +-
 src/meta/src/rpc/metrics.rs                   |   8 +-
 src/meta/src/rpc/server.rs                    |  21 +-
 .../src/rpc/service/notification_service.rs   |  17 +
 src/meta/src/rpc/service/scale_service.rs     |   2 +-
 src/meta/src/rpc/service/stream_service.rs    |   2 +-
 src/meta/src/stream/scale.rs                  |   2 +-
 src/meta/src/stream/source_manager.rs         |   2 +-
 .../hummock_test/src/sync_point_tests.rs      |   2 +-
 31 files changed, 813 insertions(+), 156 deletions(-)
 create mode 100644 src/common/src/vnode_mapping/mod.rs
 create mode 100644 src/common/src/vnode_mapping/vnode_placement.rs
 create mode 100644 src/meta/src/batch/mod.rs

diff --git a/Cargo.lock b/Cargo.lock
index 3264713a8fa88..ac0d23280ddc6 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -5769,6 +5769,7 @@ dependencies = [
  "madsim-tonic",
  "memcomparable",
  "more-asserts",
+ "num-integer",
  "num-traits",
  "number_prefix",
  "parking_lot 0.12.1",
diff --git a/proto/meta.proto b/proto/meta.proto
index d70eb321f64c8..68a8a423522af 100644
--- a/proto/meta.proto
+++ b/proto/meta.proto
@@ -106,6 +106,10 @@ message FragmentParallelUnitMapping {
   common.ParallelUnitMapping mapping = 2;
 }
 
+message FragmentParallelUnitMappings {
+  repeated FragmentParallelUnitMapping mappings = 1;
+}
+
 // TODO: remove this when dashboard refactored.
 message ActorLocation {
   common.WorkerNode node = 1;
@@ -253,12 +257,15 @@ message MetaSnapshot {
   repeated catalog.Function functions = 15;
   repeated catalog.Connection connections = 17;
   repeated user.UserInfo users = 8;
+  // for streaming
   repeated FragmentParallelUnitMapping parallel_unit_mappings = 9;
   repeated common.WorkerNode nodes = 10;
   hummock.HummockSnapshot hummock_snapshot = 11;
   hummock.HummockVersion hummock_version = 12;
   backup_service.MetaBackupManifestId meta_backup_manifest_id = 14;
   hummock.WriteLimits hummock_write_limits = 16;
+  // for serving
+  repeated FragmentParallelUnitMapping serving_parallel_unit_mappings = 18;
 
   SnapshotVersion version = 13;
 }
@@ -293,6 +300,7 @@ message SubscribeResponse {
     catalog.Schema schema = 5;
     catalog.Function function = 6;
     user.UserInfo user = 11;
+    // for streaming
     FragmentParallelUnitMapping parallel_unit_mapping = 12;
     common.WorkerNode node = 13;
     hummock.HummockSnapshot hummock_snapshot = 14;
@@ -303,6 +311,7 @@ message SubscribeResponse {
     hummock.WriteLimits hummock_write_limits = 20;
     RelationGroup relation_group = 21;
     catalog.Connection connection = 22;
+    FragmentParallelUnitMappings serving_parallel_unit_mappings = 23;
   }
 }
 
diff --git a/risedev.yml b/risedev.yml
index 244fa9ece3ce6..3ddbdc9a5b2ca 100644
--- a/risedev.yml
+++ b/risedev.yml
@@ -597,13 +597,13 @@ profile:
         exporter-port: 1225
         enable-tiered-cache: true
         role: serving
-        parallelism: 6
+        parallelism: 4
       - use: compute-node
         port: 5686
         exporter-port: 1226
         enable-tiered-cache: true
         role: serving
-        parallelism: 6
+        parallelism: 8
       - use: frontend
         port: 4565
         exporter-port: 2222
diff --git a/src/common/Cargo.toml b/src/common/Cargo.toml
index 6bf54c4ee0516..b28929937887c 100644
--- a/src/common/Cargo.toml
+++ b/src/common/Cargo.toml
@@ -47,6 +47,7 @@ itertools = "0.10"
 itoa = "1.0"
 lru = { git = "https://github.com/risingwavelabs/lru-rs.git", rev = "cb2d7c7" }
 memcomparable = { version = "0.2", features = ["decimal"] }
+num-integer = "0.1"
 num-traits = "0.2"
 number_prefix = "0.4.0"
 parking_lot = "0.12"
diff --git a/src/common/common_service/src/observer_manager.rs b/src/common/common_service/src/observer_manager.rs
index 559bfe9076211..c582ed789bf74 100644
--- a/src/common/common_service/src/observer_manager.rs
+++ b/src/common/common_service/src/observer_manager.rs
@@ -136,6 +136,7 @@ where
             Info::HummockSnapshot(_) => true,
             Info::MetaBackupManifestId(_) => true,
             Info::SystemParams(_) => true,
+            Info::ServingParallelUnitMappings(_) => true,
             Info::Snapshot(_) | Info::HummockWriteLimits(_) => unreachable!(),
         });
 
diff --git a/src/common/src/lib.rs b/src/common/src/lib.rs
index 5a14a7e1f7992..487acc14708c2 100644
--- a/src/common/src/lib.rs
+++ b/src/common/src/lib.rs
@@ -13,6 +13,7 @@
 // limitations under the License.
 
 #![allow(rustdoc::private_intra_doc_links)]
+#![feature(drain_filter)]
 #![feature(trait_alias)]
 #![feature(binary_heap_drain_sorted)]
 #![feature(is_sorted)]
@@ -66,6 +67,7 @@ pub mod telemetry;
 pub mod metrics;
 pub mod test_utils;
 pub mod types;
+pub mod vnode_mapping;
 
 pub mod test_prelude {
     pub use super::array::{DataChunkTestExt, StreamChunkTestExt};
diff --git a/src/common/src/vnode_mapping/mod.rs b/src/common/src/vnode_mapping/mod.rs
new file mode 100644
index 0000000000000..c07e55de2e8b7
--- /dev/null
+++ b/src/common/src/vnode_mapping/mod.rs
@@ -0,0 +1,15 @@
+// Copyright 2023 RisingWave Labs
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+pub mod vnode_placement;
diff --git a/src/common/src/vnode_mapping/vnode_placement.rs b/src/common/src/vnode_mapping/vnode_placement.rs
new file mode 100644
index 0000000000000..2def8f027fc7b
--- /dev/null
+++ b/src/common/src/vnode_mapping/vnode_placement.rs
@@ -0,0 +1,305 @@
+// Copyright 2023 RisingWave Labs
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+use std::collections::{HashMap, HashSet, LinkedList, VecDeque};
+
+use itertools::Itertools;
+use num_integer::Integer;
+use risingwave_pb::common::WorkerNode;
+
+use crate::buffer::{Bitmap, BitmapBuilder};
+use crate::hash::{ParallelUnitId, ParallelUnitMapping, VirtualNode};
+
+/// Calculate a new vnode mapping, keeping locality and balance on a best effort basis.
+/// The strategy is similar to `rebalance_actor_vnode` used in meta node, but is modified to
+/// consider `max_parallelism` too.
+pub fn place_vnode(
+    hint_pu_mapping: Option<&ParallelUnitMapping>,
+    new_workers: &[WorkerNode],
+    max_parallelism: usize,
+) -> Option<ParallelUnitMapping> {
+    // Get all serving parallel units from all available workers, grouped by worker id and ordered
+    // by parallel unit id in each group.
+    let mut new_pus: LinkedList<_> = new_workers
+        .iter()
+        .filter(|w| w.property.as_ref().map_or(false, |p| p.is_serving))
+        .sorted_by_key(|w| w.id)
+        .map(|w| w.parallel_units.clone().into_iter().sorted_by_key(|p| p.id))
+        .collect();
+
+    // Set serving parallelism to the minimum of total number of parallel units, specified
+    // `max_parallelism` and total number of virtual nodes.
+    let serving_parallelism = std::cmp::min(
+        new_pus.iter().map(|pus| pus.len()).sum(),
+        std::cmp::min(max_parallelism, VirtualNode::COUNT),
+    );
+
+    // Select `serving_parallelism` parallel units in a round-robin fashion, to distribute workload
+    // evenly among workers.
+    let mut selected_pu_ids = Vec::new();
+    while !new_pus.is_empty() {
+        new_pus.drain_filter(|ps| {
+            if let Some(p) = ps.next() {
+                selected_pu_ids.push(p.id);
+                false
+            } else {
+                true
+            }
+        });
+    }
+    selected_pu_ids.drain(serving_parallelism..);
+    let selected_pu_id_set: HashSet<ParallelUnitId> = selected_pu_ids.iter().cloned().collect();
+    if selected_pu_id_set.is_empty() {
+        return None;
+    }
+
+    // Calculate balance for each selected parallel unit. Initially, each parallel unit is assigned
+    // no vnodes. Thus its negative balance means that many vnodes should be assigned to it later.
+    // `is_temp` is a mark for a special temporary parallel unit, only to simplify implementation.
+    #[derive(Debug)]
+    struct Balance {
+        pu_id: ParallelUnitId,
+        balance: i32,
+        builder: BitmapBuilder,
+        is_temp: bool,
+    }
+    let (expected, mut remain) = VirtualNode::COUNT.div_rem(&selected_pu_ids.len());
+    let mut balances: HashMap<ParallelUnitId, Balance> = HashMap::default();
+    for pu_id in &selected_pu_ids {
+        let mut balance = Balance {
+            pu_id: *pu_id,
+            balance: -(expected as i32),
+            builder: BitmapBuilder::zeroed(VirtualNode::COUNT),
+            is_temp: false,
+        };
+        if remain > 0 {
+            balance.balance -= 1;
+            remain -= 1;
+        }
+        balances.insert(*pu_id, balance);
+    }
+
+    // Now to maintain affinity, if a hint has been provided via `hint_pu_mapping`, follow
+    // that mapping to adjust balances.
+    let mut temp_pu = Balance {
+        pu_id: 0, // This id doesn't matter for `temp_pu`. It's distinguishable via `is_temp`.
+        balance: 0,
+        builder: BitmapBuilder::zeroed(VirtualNode::COUNT),
+        is_temp: true,
+    };
+    match hint_pu_mapping {
+        Some(hint_pu_mapping) => {
+            for (vnode, pu_id) in hint_pu_mapping.iter_with_vnode() {
+                let b = if selected_pu_id_set.contains(&pu_id) {
+                    // Assign vnode to the same parallel unit as hint.
+                    balances.get_mut(&pu_id).unwrap()
+                } else {
+                    // Assign vnode that doesn't belong to any parallel unit to `temp_pu`
+                    // temporarily. They will be reassigned later.
+                    &mut temp_pu
+                };
+                b.balance += 1;
+                b.builder.set(vnode.to_index(), true);
+            }
+        }
+        None => {
+            // No hint is provided, assign all vnodes to `temp_pu`.
+            for vnode in VirtualNode::all() {
+                temp_pu.balance += 1;
+                temp_pu.builder.set(vnode.to_index(), true);
+            }
+        }
+    }
+
+    // The final step is to move vnodes from parallel units with positive balance to parallel units
+    // with negative balance, until all parallel units are of 0 balance.
+    // A double-ended queue with parallel units ordered by balance in descending order is consumed:
+    // 1. Peek 2 parallel units from front and back.
+    // 2. It any of them is of 0 balance, pop it and go to step 1.
+    // 3. Otherwise, move vnodes from front to back.
+    let mut balances: VecDeque<_> = balances
+        .into_values()
+        .chain(std::iter::once(temp_pu))
+        .sorted_by_key(|b| b.balance)
+        .rev()
+        .collect();
+    let mut results: HashMap<ParallelUnitId, Bitmap> = HashMap::default();
+    while !balances.is_empty() {
+        if balances.len() == 1 {
+            let single = balances.pop_front().unwrap();
+            assert_eq!(single.balance, 0);
+            if !single.is_temp {
+                results.insert(single.pu_id, single.builder.finish());
+            }
+            break;
+        }
+        let mut src = balances.pop_front().unwrap();
+        let mut dst = balances.pop_back().unwrap();
+        let n = std::cmp::min(src.balance.abs(), dst.balance.abs());
+        let mut moved = 0;
+        for idx in 0..VirtualNode::COUNT {
+            if moved >= n {
+                break;
+            }
+            if src.builder.is_set(idx) {
+                src.builder.set(idx, false);
+                assert!(!dst.builder.is_set(idx));
+                dst.builder.set(idx, true);
+                moved += 1;
+            }
+        }
+        src.balance -= n;
+        dst.balance += n;
+        if src.balance != 0 {
+            balances.push_front(src);
+        } else if !src.is_temp {
+            results.insert(src.pu_id, src.builder.finish());
+        }
+
+        if dst.balance != 0 {
+            balances.push_back(dst);
+        } else if !dst.is_temp {
+            results.insert(dst.pu_id, dst.builder.finish());
+        }
+    }
+
+    Some(ParallelUnitMapping::from_bitmaps(&results))
+}
+
+#[cfg(test)]
+mod tests {
+    use std::collections::HashMap;
+
+    use risingwave_pb::common::worker_node::Property;
+    use risingwave_pb::common::{ParallelUnit, WorkerNode};
+
+    use crate::hash::{ParallelUnitId, ParallelUnitMapping, VirtualNode};
+    use crate::vnode_mapping::vnode_placement::place_vnode;
+
+    #[test]
+    fn test_place_vnode() {
+        assert_eq!(VirtualNode::COUNT, 256);
+        let mut pu_id_counter: ParallelUnitId = 0;
+        let mut pu_to_worker: HashMap<ParallelUnitId, u32> = Default::default();
+        let serving_property = Property {
+            is_streaming: false,
+            is_serving: true,
+        };
+        let mut gen_pus_for_worker =
+            |worker_node_id: u32, number: u32, pu_to_worker: &mut HashMap<ParallelUnitId, u32>| {
+                let mut results = vec![];
+                for i in 0..number {
+                    results.push(ParallelUnit {
+                        id: pu_id_counter + i,
+                        worker_node_id,
+                    })
+                }
+                pu_id_counter += number;
+                for pu in &results {
+                    pu_to_worker.insert(pu.id, pu.worker_node_id);
+                }
+                results
+            };
+        let count_same_vnode_mapping = |pm1: &ParallelUnitMapping, pm2: &ParallelUnitMapping| {
+            assert_eq!(pm1.len(), 256);
+            assert_eq!(pm2.len(), 256);
+            let mut count: usize = 0;
+            for idx in 0..VirtualNode::COUNT {
+                let vnode = VirtualNode::from_index(idx);
+                if pm1.get(vnode) == pm2.get(vnode) {
+                    count += 1;
+                }
+            }
+            count
+        };
+        let worker_1 = WorkerNode {
+            id: 1,
+            parallel_units: gen_pus_for_worker(1, 1, &mut pu_to_worker),
+            property: Some(serving_property.clone()),
+            ..Default::default()
+        };
+        assert!(
+            place_vnode(None, &[worker_1.clone()], 0).is_none(),
+            "max_parallelism should >= 0"
+        );
+        let re_pu_mapping_2 = place_vnode(None, &[worker_1.clone()], 10000).unwrap();
+        assert_eq!(re_pu_mapping_2.iter_unique().count(), 1);
+        let worker_2 = WorkerNode {
+            id: 2,
+            parallel_units: gen_pus_for_worker(2, 50, &mut pu_to_worker),
+            property: Some(serving_property.clone()),
+            ..Default::default()
+        };
+        let re_pu_mapping = place_vnode(
+            Some(&re_pu_mapping_2),
+            &[worker_1.clone(), worker_2.clone()],
+            10000,
+        )
+        .unwrap();
+        assert_eq!(re_pu_mapping.iter_unique().count(), 51);
+        // 1 * 256 + 0 -> 51 * 5 + 1
+        let score = count_same_vnode_mapping(&re_pu_mapping_2, &re_pu_mapping);
+        assert!(score >= 5);
+
+        let worker_3 = WorkerNode {
+            id: 3,
+            parallel_units: gen_pus_for_worker(3, 60, &mut pu_to_worker),
+            property: Some(serving_property),
+            ..Default::default()
+        };
+        let re_pu_mapping_2 = place_vnode(
+            Some(&re_pu_mapping),
+            &[worker_1.clone(), worker_2.clone(), worker_3.clone()],
+            10000,
+        )
+        .unwrap();
+        // limited by total pu number
+        assert_eq!(re_pu_mapping_2.iter_unique().count(), 111);
+        // 51 * 5 + 1 -> 111 * 2 + 34
+        let score = count_same_vnode_mapping(&re_pu_mapping_2, &re_pu_mapping);
+        assert!(score >= (2 + 50 * 2));
+        let re_pu_mapping = place_vnode(
+            Some(&re_pu_mapping_2),
+            &[worker_1.clone(), worker_2.clone(), worker_3.clone()],
+            50,
+        )
+        .unwrap();
+        // limited by max_parallelism
+        assert_eq!(re_pu_mapping.iter_unique().count(), 50);
+        // 111 * 2 + 34 -> 50 * 5 + 6
+        let score = count_same_vnode_mapping(&re_pu_mapping, &re_pu_mapping_2);
+        assert!(score >= 50 * 2);
+        let re_pu_mapping_2 = place_vnode(
+            Some(&re_pu_mapping),
+            &[worker_1.clone(), worker_2, worker_3.clone()],
+            10000,
+        )
+        .unwrap();
+        assert_eq!(re_pu_mapping_2.iter_unique().count(), 111);
+        // 50 * 5 + 6 -> 111 * 2 + 34
+        let score = count_same_vnode_mapping(&re_pu_mapping_2, &re_pu_mapping);
+        assert!(score >= 50 * 2);
+        let re_pu_mapping =
+            place_vnode(Some(&re_pu_mapping_2), &[worker_1, worker_3.clone()], 10000).unwrap();
+        // limited by total pu number
+        assert_eq!(re_pu_mapping.iter_unique().count(), 61);
+        // 111 * 2 + 34 -> 61 * 4 + 12
+        let score = count_same_vnode_mapping(&re_pu_mapping, &re_pu_mapping_2);
+        assert!(score >= 61 * 2);
+        assert!(place_vnode(Some(&re_pu_mapping), &[], 10000).is_none());
+        let re_pu_mapping = place_vnode(Some(&re_pu_mapping), &[worker_3], 10000).unwrap();
+        assert_eq!(re_pu_mapping.iter_unique().count(), 60);
+        assert!(place_vnode(Some(&re_pu_mapping), &[], 10000).is_none());
+    }
+}
diff --git a/src/frontend/src/observer/observer_manager.rs b/src/frontend/src/observer/observer_manager.rs
index 9298164d35833..5e2204fcce1f7 100644
--- a/src/frontend/src/observer/observer_manager.rs
+++ b/src/frontend/src/observer/observer_manager.rs
@@ -12,8 +12,10 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+use std::collections::HashMap;
 use std::sync::Arc;
 
+use itertools::Itertools;
 use parking_lot::RwLock;
 use risingwave_common::catalog::CatalogVersion;
 use risingwave_common::hash::ParallelUnitMapping;
@@ -26,6 +28,7 @@ use risingwave_pb::meta::{FragmentParallelUnitMapping, MetaSnapshot, SubscribeRe
 use tokio::sync::watch::Sender;
 
 use crate::catalog::root_catalog::Catalog;
+use crate::catalog::FragmentId;
 use crate::scheduler::worker_node_manager::WorkerNodeManagerRef;
 use crate::scheduler::HummockSnapshotManagerRef;
 use crate::user::user_manager::UserInfoManager;
@@ -49,6 +52,7 @@ impl ObserverState for FrontendObserverNode {
             return;
         };
 
+        // TODO: this clone can be avoided
         match info.to_owned() {
             Info::Database(_)
             | Info::Schema(_)
@@ -85,6 +89,9 @@ impl ObserverState for FrontendObserverNode {
             Info::SystemParams(p) => {
                 self.system_params_manager.try_set_params(p);
             }
+            Info::ServingParallelUnitMappings(m) => {
+                self.handle_fragment_serving_mapping_notification(m.mappings, resp.operation());
+            }
         }
     }
 
@@ -109,6 +116,7 @@ impl ObserverState for FrontendObserverNode {
             connections,
             users,
             parallel_unit_mappings,
+            serving_parallel_unit_mappings,
             nodes,
             hummock_snapshot,
             hummock_version: _,
@@ -149,18 +157,8 @@ impl ObserverState for FrontendObserverNode {
         }
         self.worker_node_manager.refresh(
             nodes,
-            parallel_unit_mappings
-                .iter()
-                .map(
-                    |FragmentParallelUnitMapping {
-                         fragment_id,
-                         mapping,
-                     }| {
-                        let mapping = ParallelUnitMapping::from_protobuf(mapping.as_ref().unwrap());
-                        (*fragment_id, mapping)
-                    },
-                )
-                .collect(),
+            convert_pu_mapping(&parallel_unit_mappings),
+            convert_pu_mapping(&serving_parallel_unit_mappings),
         );
         self.hummock_snapshot_manager
             .update_epoch(hummock_snapshot.unwrap());
@@ -370,6 +368,27 @@ impl FrontendObserverNode {
         }
     }
 
+    fn handle_fragment_serving_mapping_notification(
+        &mut self,
+        mappings: Vec<FragmentParallelUnitMapping>,
+        op: Operation,
+    ) {
+        match op {
+            Operation::Add | Operation::Update => {
+                self.worker_node_manager
+                    .upsert_serving_fragment_mapping(convert_pu_mapping(&mappings));
+            }
+            Operation::Delete => self.worker_node_manager.remove_serving_fragment_mapping(
+                &mappings.into_iter().map(|m| m.fragment_id).collect_vec(),
+            ),
+            Operation::Snapshot => {
+                self.worker_node_manager
+                    .set_serving_fragment_mapping(convert_pu_mapping(&mappings));
+            }
+            _ => panic!("receive an unsupported notify {:?}", op),
+        }
+    }
+
     /// Update max committed epoch in `HummockSnapshotManager`.
     fn handle_hummock_snapshot_notification(&self, resp: SubscribeResponse) {
         let Some(info) = resp.info.as_ref() else {
@@ -403,3 +422,20 @@ impl FrontendObserverNode {
         }
     }
 }
+
+fn convert_pu_mapping(
+    parallel_unit_mappings: &[FragmentParallelUnitMapping],
+) -> HashMap<FragmentId, ParallelUnitMapping> {
+    parallel_unit_mappings
+        .iter()
+        .map(
+            |FragmentParallelUnitMapping {
+                 fragment_id,
+                 mapping,
+             }| {
+                let mapping = ParallelUnitMapping::from_protobuf(mapping.as_ref().unwrap());
+                (*fragment_id, mapping)
+            },
+        )
+        .collect()
+}
diff --git a/src/frontend/src/scheduler/distributed/query.rs b/src/frontend/src/scheduler/distributed/query.rs
index 03bd98b315bd1..2a3de7271d519 100644
--- a/src/frontend/src/scheduler/distributed/query.rs
+++ b/src/frontend/src/scheduler/distributed/query.rs
@@ -636,6 +636,11 @@ pub(crate) mod tests {
         let worker_node_selector = WorkerNodeSelector::new(worker_node_manager.clone(), false);
         worker_node_manager
             .insert_streaming_fragment_mapping(0, ParallelUnitMapping::new_single(0));
+        worker_node_manager.set_serving_fragment_mapping(
+            vec![(0, ParallelUnitMapping::new_single(0))]
+                .into_iter()
+                .collect(),
+        );
         let catalog = Arc::new(parking_lot::RwLock::new(Catalog::default()));
         catalog.write().insert_table_id_mapping(table_id, 0);
         let catalog_reader = CatalogReader::new(catalog);
diff --git a/src/frontend/src/scheduler/distributed/stage.rs b/src/frontend/src/scheduler/distributed/stage.rs
index 070538e131ff0..84cd4b28c1457 100644
--- a/src/frontend/src/scheduler/distributed/stage.rs
+++ b/src/frontend/src/scheduler/distributed/stage.rs
@@ -638,17 +638,19 @@ impl StageRunner {
     }
 
     #[inline(always)]
-    fn get_streaming_vnode_mapping(&self, table_id: &TableId) -> Option<ParallelUnitMapping> {
-        self.catalog_reader
+    fn get_streaming_vnode_mapping(
+        &self,
+        table_id: &TableId,
+    ) -> SchedulerResult<ParallelUnitMapping> {
+        let fragment_id = self
+            .catalog_reader
             .read_guard()
             .get_table_by_id(table_id)
-            .map(|table| {
-                self.worker_node_manager
-                    .manager
-                    .get_streaming_fragment_mapping(&table.fragment_id)
-            })
-            .ok()
-            .flatten()
+            .map_err(|e| SchedulerError::Internal(anyhow!(e)))?
+            .fragment_id;
+        self.worker_node_manager
+            .manager
+            .get_streaming_fragment_mapping(&fragment_id)
     }
 
     fn choose_worker(
@@ -659,7 +661,7 @@ impl StageRunner {
     ) -> SchedulerResult<Option<WorkerNode>> {
         let plan_node = plan_fragment.root.as_ref().expect("fail to get plan node");
         let vnode_mapping = match dml_table_id {
-            Some(table_id) => self.get_streaming_vnode_mapping(&table_id),
+            Some(table_id) => Some(self.get_streaming_vnode_mapping(&table_id)?),
             None => {
                 if let Some(distributed_lookup_join_node) =
                     Self::find_distributed_lookup_join_node(plan_node)
diff --git a/src/frontend/src/scheduler/error.rs b/src/frontend/src/scheduler/error.rs
index 50a0a245da7a2..2ca737f73ab09 100644
--- a/src/frontend/src/scheduler/error.rs
+++ b/src/frontend/src/scheduler/error.rs
@@ -18,6 +18,7 @@ use risingwave_rpc_client::error::RpcError;
 use thiserror::Error;
 use tonic::{Code, Status};
 
+use crate::catalog::FragmentId;
 use crate::scheduler::plan_fragmenter::QueryId;
 
 #[derive(Error, Debug)]
@@ -31,6 +32,12 @@ pub enum SchedulerError {
     #[error("Empty workers found")]
     EmptyWorkerNodes,
 
+    #[error("Serving vnode mapping not found for fragment {0}")]
+    ServingVnodeMappingNotFound(FragmentId),
+
+    #[error("Streaming vnode mapping not found for fragment {0}")]
+    StreamingVnodeMappingNotFound(FragmentId),
+
     #[error("{0}")]
     TaskExecutionError(String),
 
diff --git a/src/frontend/src/scheduler/local.rs b/src/frontend/src/scheduler/local.rs
index bc48b8dd3b7bc..15473591eda31 100644
--- a/src/frontend/src/scheduler/local.rs
+++ b/src/frontend/src/scheduler/local.rs
@@ -465,25 +465,26 @@ impl LocalQueryExecution {
     }
 
     #[inline(always)]
-    fn get_streaming_vnode_mapping(&self, table_id: &TableId) -> Option<ParallelUnitMapping> {
-        let reader = self.front_env.catalog_reader().read_guard();
-        reader
+    fn get_streaming_vnode_mapping(
+        &self,
+        table_id: &TableId,
+    ) -> SchedulerResult<ParallelUnitMapping> {
+        let fragment_id = self
+            .front_env
+            .catalog_reader()
+            .read_guard()
             .get_table_by_id(table_id)
-            .map(|table| {
-                self.worker_node_manager
-                    .manager
-                    .get_streaming_fragment_mapping(&table.fragment_id)
-            })
-            .ok()
-            .flatten()
+            .map_err(|e| SchedulerError::Internal(anyhow!(e)))?
+            .fragment_id;
+        self.worker_node_manager
+            .manager
+            .get_streaming_fragment_mapping(&fragment_id)
     }
 
     fn choose_worker(&self, stage: &Arc<QueryStage>) -> SchedulerResult<Vec<WorkerNode>> {
         if let Some(table_id) = stage.dml_table_id.as_ref() {
             // dml should use streaming vnode mapping
-            let vnode_mapping = self
-                .get_streaming_vnode_mapping(table_id)
-                .ok_or_else(|| SchedulerError::EmptyWorkerNodes)?;
+            let vnode_mapping = self.get_streaming_vnode_mapping(table_id)?;
             let worker_node = {
                 let parallel_unit_ids = vnode_mapping.iter_unique().collect_vec();
                 let candidates = self
diff --git a/src/frontend/src/scheduler/worker_node_manager.rs b/src/frontend/src/scheduler/worker_node_manager.rs
index cec4939a48ef1..5289dca23642a 100644
--- a/src/frontend/src/scheduler/worker_node_manager.rs
+++ b/src/frontend/src/scheduler/worker_node_manager.rs
@@ -12,16 +12,14 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-use std::collections::{BTreeMap, HashMap, LinkedList};
+use std::collections::HashMap;
 use std::sync::{Arc, RwLock};
 
-use anyhow::anyhow;
-use itertools::Itertools;
 use rand::seq::SliceRandom;
 use risingwave_common::bail;
 use risingwave_common::hash::{ParallelUnitId, ParallelUnitMapping};
 use risingwave_common::util::worker_util::get_pu_to_worker_mapping;
-use risingwave_pb::common::{ParallelUnit, WorkerNode, WorkerType};
+use risingwave_pb::common::{WorkerNode, WorkerType};
 
 use crate::catalog::FragmentId;
 use crate::scheduler::{SchedulerError, SchedulerResult};
@@ -33,9 +31,9 @@ pub struct WorkerNodeManager {
 
 struct WorkerNodeManagerInner {
     worker_nodes: Vec<WorkerNode>,
-    /// fragment vnode mapping info for streaming. It's from meta node.
+    /// fragment vnode mapping info for streaming
     streaming_fragment_vnode_mapping: HashMap<FragmentId, ParallelUnitMapping>,
-    /// fragment vnode mapping info for serving. It's calculated locally.
+    /// fragment vnode mapping info for serving
     serving_fragment_vnode_mapping: HashMap<FragmentId, ParallelUnitMapping>,
 }
 
@@ -95,9 +93,6 @@ impl WorkerNodeManager {
 
     pub fn add_worker_node(&self, node: WorkerNode) {
         let mut write_guard = self.inner.write().unwrap();
-        if node.property.as_ref().map_or(false, |p| p.is_serving) {
-            write_guard.serving_fragment_vnode_mapping.clear();
-        }
         // update
         for w in &mut write_guard.worker_nodes {
             if w.id == node.id {
@@ -111,21 +106,28 @@ impl WorkerNodeManager {
 
     pub fn remove_worker_node(&self, node: WorkerNode) {
         let mut write_guard = self.inner.write().unwrap();
-        if node.property.as_ref().map_or(false, |p| p.is_serving) {
-            write_guard.serving_fragment_vnode_mapping.clear();
-        }
         write_guard.worker_nodes.retain(|x| x.id != node.id);
     }
 
     pub fn refresh(
         &self,
         nodes: Vec<WorkerNode>,
-        mapping: HashMap<FragmentId, ParallelUnitMapping>,
+        streaming_mapping: HashMap<FragmentId, ParallelUnitMapping>,
+        serving_mapping: HashMap<FragmentId, ParallelUnitMapping>,
     ) {
         let mut write_guard = self.inner.write().unwrap();
+        tracing::debug!("Refresh worker nodes {:?}.", nodes);
+        tracing::debug!(
+            "Refresh streaming vnode mapping for fragments {:?}.",
+            streaming_mapping.keys()
+        );
+        tracing::debug!(
+            "Refresh serving vnode mapping for fragments {:?}.",
+            serving_mapping.keys()
+        );
         write_guard.worker_nodes = nodes;
-        write_guard.streaming_fragment_vnode_mapping = mapping;
-        write_guard.serving_fragment_vnode_mapping.clear();
+        write_guard.streaming_fragment_vnode_mapping = streaming_mapping;
+        write_guard.serving_fragment_vnode_mapping = serving_mapping;
     }
 
     /// If parallel unit ids is empty, the scheduler may fail to schedule any task and stuck at
@@ -156,13 +158,14 @@ impl WorkerNodeManager {
     pub fn get_streaming_fragment_mapping(
         &self,
         fragment_id: &FragmentId,
-    ) -> Option<ParallelUnitMapping> {
+    ) -> SchedulerResult<ParallelUnitMapping> {
         self.inner
             .read()
             .unwrap()
             .streaming_fragment_vnode_mapping
             .get(fragment_id)
             .cloned()
+            .ok_or_else(|| SchedulerError::StreamingVnodeMappingNotFound(*fragment_id))
     }
 
     pub fn insert_streaming_fragment_mapping(
@@ -188,7 +191,6 @@ impl WorkerNodeManager {
             .streaming_fragment_vnode_mapping
             .insert(fragment_id, vnode_mapping)
             .unwrap();
-        guard.serving_fragment_vnode_mapping.remove(&fragment_id);
     }
 
     pub fn remove_streaming_fragment_mapping(&self, fragment_id: &FragmentId) {
@@ -197,28 +199,54 @@ impl WorkerNodeManager {
             .streaming_fragment_vnode_mapping
             .remove(fragment_id)
             .unwrap();
-        guard.serving_fragment_vnode_mapping.remove(fragment_id);
     }
 
     /// Returns fragment's vnode mapping for serving.
-    fn get_serving_fragment_mapping(
+    fn serving_fragment_mapping(
         &self,
         fragment_id: FragmentId,
     ) -> SchedulerResult<ParallelUnitMapping> {
-        if let Some(pu_mapping) = self
-            .inner
+        self.inner
             .read()
             .unwrap()
             .get_serving_fragment_mapping(fragment_id)
-        {
-            return Ok(pu_mapping);
+            .ok_or_else(|| SchedulerError::ServingVnodeMappingNotFound(fragment_id))
+    }
+
+    pub fn set_serving_fragment_mapping(&self, mappings: HashMap<FragmentId, ParallelUnitMapping>) {
+        let mut guard = self.inner.write().unwrap();
+        tracing::debug!(
+            "Set serving vnode mapping for fragments {:?}",
+            mappings.keys()
+        );
+        guard.serving_fragment_vnode_mapping = mappings;
+    }
+
+    pub fn upsert_serving_fragment_mapping(
+        &self,
+        mappings: HashMap<FragmentId, ParallelUnitMapping>,
+    ) {
+        let mut guard = self.inner.write().unwrap();
+        tracing::debug!(
+            "Upsert serving vnode mapping for fragments {:?}",
+            mappings.keys()
+        );
+        for (fragment_id, mapping) in mappings {
+            guard
+                .serving_fragment_vnode_mapping
+                .insert(fragment_id, mapping);
         }
+    }
+
+    pub fn remove_serving_fragment_mapping(&self, fragment_ids: &[FragmentId]) {
         let mut guard = self.inner.write().unwrap();
-        if let Some(pu_mapping) = guard.get_serving_fragment_mapping(fragment_id) {
-            return Ok(pu_mapping);
+        tracing::debug!(
+            "Delete serving vnode mapping for fragments {:?}",
+            fragment_ids
+        );
+        for fragment_id in fragment_ids {
+            guard.serving_fragment_vnode_mapping.remove(fragment_id);
         }
-        let pu_mapping = guard.reschedule_serving(fragment_id)?;
-        Ok(pu_mapping)
     }
 }
 
@@ -228,61 +256,6 @@ impl WorkerNodeManagerInner {
             .get(&fragment_id)
             .cloned()
     }
-
-    /// Calculates serving vnode mappings for `fragment_id`.
-    /// The `serving_parallelism` is set to min(`all_serving_pus`, `streaming_parallelism`).
-    fn reschedule_serving(
-        &mut self,
-        fragment_id: FragmentId,
-    ) -> SchedulerResult<ParallelUnitMapping> {
-        let all_serving_pus: BTreeMap<u32, Vec<ParallelUnit>> = self
-            .worker_nodes
-            .iter()
-            .filter(|w| w.property.as_ref().map_or(false, |p| p.is_serving))
-            .sorted_by_key(|w| w.id)
-            .map(|w| (w.id, w.parallel_units.clone()))
-            .collect();
-        let serving_pus_total_num = all_serving_pus.values().map(|p| p.len()).sum::<usize>();
-        if serving_pus_total_num == 0 {
-            return Err(SchedulerError::EmptyWorkerNodes);
-        }
-        let streaming_vnode_mapping = self
-            .streaming_fragment_vnode_mapping
-            .get(&fragment_id)
-            .ok_or_else(|| {
-                anyhow!(
-                    "streaming vnode mapping for fragment {} not found",
-                    fragment_id
-                )
-            })?;
-        let serving_parallelism = std::cmp::min(
-            serving_pus_total_num,
-            streaming_vnode_mapping.iter_unique().count(),
-        );
-        assert!(serving_parallelism > 0);
-        // round-robin similar to `Scheduler` in meta node.
-        let mut parallel_units: LinkedList<_> = all_serving_pus
-            .into_values()
-            .map(|v| v.into_iter().sorted_by_key(|p| p.id))
-            .collect();
-        let mut round_robin = Vec::new();
-        while !parallel_units.is_empty() {
-            parallel_units.drain_filter(|ps| {
-                if let Some(p) = ps.next() {
-                    round_robin.push(p);
-                    false
-                } else {
-                    true
-                }
-            });
-        }
-        round_robin.truncate(serving_parallelism);
-        round_robin.sort_unstable_by_key(|p| p.id);
-        let selected_serving_pus = ParallelUnitMapping::build(&round_robin);
-        self.serving_fragment_vnode_mapping
-            .insert(fragment_id, selected_serving_pus.clone());
-        Ok(selected_serving_pus)
-    }
 }
 
 /// Selects workers for query according to `enable_barrier_read`
@@ -325,16 +298,9 @@ impl WorkerNodeSelector {
         fragment_id: FragmentId,
     ) -> SchedulerResult<ParallelUnitMapping> {
         if self.enable_barrier_read {
-            self.manager
-                .get_streaming_fragment_mapping(&fragment_id)
-                .ok_or_else(|| {
-                    SchedulerError::Internal(anyhow!(
-                        "vnode mapping for fragment {} not found",
-                        fragment_id
-                    ))
-                })
+            self.manager.get_streaming_fragment_mapping(&fragment_id)
         } else {
-            self.manager.get_serving_fragment_mapping(fragment_id)
+            self.manager.serving_fragment_mapping(fragment_id)
         }
     }
 
diff --git a/src/meta/src/barrier/command.rs b/src/meta/src/barrier/command.rs
index 046f60b97bdf1..3d7d617dc23a7 100644
--- a/src/meta/src/barrier/command.rs
+++ b/src/meta/src/barrier/command.rs
@@ -617,7 +617,7 @@ where
 
             Command::RescheduleFragment { reschedules } => {
                 let mut node_dropped_actors = HashMap::new();
-                for table_fragments in self.fragment_manager.list_table_fragments().await? {
+                for table_fragments in self.fragment_manager.list_table_fragments().await {
                     for fragment_id in table_fragments.fragments.keys() {
                         if let Some(reschedule) = reschedules.get(fragment_id) {
                             for actor_id in &reschedule.removed_actors {
diff --git a/src/meta/src/barrier/recovery.rs b/src/meta/src/barrier/recovery.rs
index c4796ad406067..19a01c9113191 100644
--- a/src/meta/src/barrier/recovery.rs
+++ b/src/meta/src/barrier/recovery.rs
@@ -67,7 +67,7 @@ where
     /// Clean up all dirty streaming jobs.
     async fn clean_dirty_fragments(&self) -> MetaResult<()> {
         let stream_job_ids = self.catalog_manager.list_stream_job_ids().await?;
-        let table_fragments = self.fragment_manager.list_table_fragments().await?;
+        let table_fragments = self.fragment_manager.list_table_fragments().await;
         let to_drop_table_fragments = table_fragments
             .into_iter()
             .filter(|table_fragment| {
diff --git a/src/meta/src/batch/mod.rs b/src/meta/src/batch/mod.rs
new file mode 100644
index 0000000000000..4da9af3503d94
--- /dev/null
+++ b/src/meta/src/batch/mod.rs
@@ -0,0 +1,197 @@
+// Copyright 2023 RisingWave Labs
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+use std::collections::HashMap;
+use std::sync::Arc;
+
+use parking_lot::RwLock;
+use risingwave_common::hash::ParallelUnitMapping;
+use risingwave_common::vnode_mapping::vnode_placement::place_vnode;
+use risingwave_pb::common::{WorkerNode, WorkerType};
+use risingwave_pb::meta::subscribe_response::{Info, Operation};
+use risingwave_pb::meta::{FragmentParallelUnitMapping, FragmentParallelUnitMappings};
+use tokio::sync::oneshot::Sender;
+use tokio::task::JoinHandle;
+
+use crate::manager::{
+    ClusterManagerRef, FragmentManagerRef, LocalNotification, NotificationManagerRef,
+};
+use crate::model::FragmentId;
+use crate::storage::MetaStore;
+
+pub type ServingVnodeMappingRef = Arc<ServingVnodeMapping>;
+
+#[derive(Default)]
+pub struct ServingVnodeMapping {
+    serving_vnode_mappings: RwLock<HashMap<FragmentId, ParallelUnitMapping>>,
+}
+
+impl ServingVnodeMapping {
+    pub fn all(&self) -> HashMap<FragmentId, ParallelUnitMapping> {
+        self.serving_vnode_mappings.read().clone()
+    }
+
+    /// Upsert mapping for given fragments according to the latest `workers`.
+    /// Returns (successful updates, failed updates).
+    fn upsert(
+        &self,
+        streaming_parallelisms: HashMap<FragmentId, usize>,
+        workers: &[WorkerNode],
+    ) -> (HashMap<FragmentId, ParallelUnitMapping>, Vec<FragmentId>) {
+        let mut serving_vnode_mappings = self.serving_vnode_mappings.write();
+        let mut upserted: HashMap<FragmentId, ParallelUnitMapping> = HashMap::default();
+        let mut failed: Vec<FragmentId> = vec![];
+        for (fragment_id, streaming_parallelism) in streaming_parallelisms {
+            let new_mapping = {
+                let old_mapping = serving_vnode_mappings.get(&fragment_id);
+                // Set max serving parallelism to `streaming_parallelism`. It's not a must.
+                place_vnode(old_mapping, workers, streaming_parallelism)
+            };
+            match new_mapping {
+                None => {
+                    serving_vnode_mappings.remove(&fragment_id as _);
+                    failed.push(fragment_id);
+                }
+                Some(mapping) => {
+                    serving_vnode_mappings.insert(fragment_id, mapping.clone());
+                    upserted.insert(fragment_id, mapping);
+                }
+            }
+        }
+        (upserted, failed)
+    }
+
+    fn remove(&self, fragment_ids: &[FragmentId]) {
+        let mut mappings = self.serving_vnode_mappings.write();
+        for fragment_id in fragment_ids {
+            mappings.remove(fragment_id);
+        }
+    }
+}
+
+fn to_fragment_parallel_unit_mapping(
+    mappings: &HashMap<FragmentId, ParallelUnitMapping>,
+) -> Vec<FragmentParallelUnitMapping> {
+    mappings
+        .iter()
+        .map(|(fragment_id, mapping)| FragmentParallelUnitMapping {
+            fragment_id: *fragment_id,
+            mapping: Some(mapping.to_protobuf()),
+        })
+        .collect()
+}
+
+fn to_deleted_fragment_parallel_unit_mapping(
+    fragment_ids: &[FragmentId],
+) -> Vec<FragmentParallelUnitMapping> {
+    fragment_ids
+        .iter()
+        .map(|fragment_id| FragmentParallelUnitMapping {
+            fragment_id: *fragment_id,
+            mapping: None,
+        })
+        .collect()
+}
+
+pub(crate) async fn on_meta_start<S: MetaStore>(
+    notification_manager: NotificationManagerRef<S>,
+    cluster_manager: ClusterManagerRef<S>,
+    fragment_manager: FragmentManagerRef<S>,
+    serving_vnode_mapping: ServingVnodeMappingRef,
+) {
+    let streaming_parallelisms = fragment_manager.running_fragment_parallelisms(None).await;
+    let (mappings, _) = serving_vnode_mapping.upsert(
+        streaming_parallelisms,
+        &cluster_manager.list_active_serving_compute_nodes().await,
+    );
+    tracing::debug!(
+        "Initialize serving vnode mapping snapshot for fragments {:?}.",
+        mappings.keys()
+    );
+    notification_manager.notify_frontend_without_version(
+        Operation::Snapshot,
+        Info::ServingParallelUnitMappings(FragmentParallelUnitMappings {
+            mappings: to_fragment_parallel_unit_mapping(&mappings),
+        }),
+    );
+}
+
+pub(crate) async fn start_serving_vnode_mapping_worker<S: MetaStore>(
+    notification_manager: NotificationManagerRef<S>,
+    cluster_manager: ClusterManagerRef<S>,
+    fragment_manager: FragmentManagerRef<S>,
+    serving_vnode_mapping: ServingVnodeMappingRef,
+) -> (JoinHandle<()>, Sender<()>) {
+    let (local_notification_tx, mut local_notification_rx) = tokio::sync::mpsc::unbounded_channel();
+    let (shutdown_tx, mut shutdown_rx) = tokio::sync::oneshot::channel();
+    notification_manager
+        .insert_local_sender(local_notification_tx)
+        .await;
+    let join_handle = tokio::spawn(async move {
+        loop {
+            tokio::select! {
+                notification = local_notification_rx.recv() => {
+                    match notification {
+                        Some(notification) => {
+                            match notification {
+                                LocalNotification::WorkerNodeActivated(w) | LocalNotification::WorkerNodeDeleted(w) =>  {
+                                    if w.r#type() != WorkerType::ComputeNode || !w.property.as_ref().map_or(false, |p| p.is_serving) {
+                                        continue;
+                                    }
+                                    let workers = cluster_manager.list_active_serving_compute_nodes().await;
+                                    let streaming_parallelisms = fragment_manager.running_fragment_parallelisms(None).await;
+                                    let (mappings, _) = serving_vnode_mapping.upsert(streaming_parallelisms, &workers);
+                                    tracing::debug!("Update serving vnode mapping snapshot for fragments {:?}.", mappings.keys());
+                                    notification_manager.notify_frontend_without_version(Operation::Snapshot, Info::ServingParallelUnitMappings(FragmentParallelUnitMappings{ mappings: to_fragment_parallel_unit_mapping(&mappings) }));
+                                }
+                                LocalNotification::FragmentMappingsUpsert(fragment_ids) => {
+                                    if fragment_ids.is_empty() {
+                                        continue;
+                                    }
+                                    let workers = cluster_manager.list_active_serving_compute_nodes().await;
+                                    let streaming_parallelisms = fragment_manager.running_fragment_parallelisms(Some(fragment_ids.into_iter().collect())).await;
+                                    let (upserted, failed) = serving_vnode_mapping.upsert(streaming_parallelisms, &workers);
+                                    if !upserted.is_empty() {
+                                        tracing::debug!("Update serving vnode mapping for fragments {:?}.", upserted.keys());
+                                        notification_manager.notify_frontend_without_version(Operation::Update, Info::ServingParallelUnitMappings(FragmentParallelUnitMappings{ mappings: to_fragment_parallel_unit_mapping(&upserted) }));
+                                    }
+                                    if !failed.is_empty() {
+                                        tracing::debug!("Fail to update serving vnode mapping for fragments {:?}.", failed);
+                                        notification_manager.notify_frontend_without_version(Operation::Delete, Info::ServingParallelUnitMappings(FragmentParallelUnitMappings{ mappings: to_deleted_fragment_parallel_unit_mapping(&failed)}));
+                                    }
+                                }
+                                LocalNotification::FragmentMappingsDelete(fragment_ids) => {
+                                    if fragment_ids.is_empty() {
+                                        continue;
+                                    }
+                                    tracing::debug!("Delete serving vnode mapping for fragments {:?}.", fragment_ids);
+                                    serving_vnode_mapping.remove(&fragment_ids);
+                                    notification_manager.notify_frontend_without_version(Operation::Delete, Info::ServingParallelUnitMappings(FragmentParallelUnitMappings{ mappings: to_deleted_fragment_parallel_unit_mapping(&fragment_ids) }));
+                                }
+                                _ => {}
+                            }
+                        }
+                        None => {
+                            return;
+                        }
+                    }
+                }
+                _ = &mut shutdown_rx => {
+                    return;
+                }
+            }
+        }
+    });
+    (join_handle, shutdown_tx)
+}
diff --git a/src/meta/src/dashboard/mod.rs b/src/meta/src/dashboard/mod.rs
index ac83bf46ee455..294785dfd07f5 100644
--- a/src/meta/src/dashboard/mod.rs
+++ b/src/meta/src/dashboard/mod.rs
@@ -191,7 +191,6 @@ pub(super) mod handlers {
             .fragment_manager
             .list_table_fragments()
             .await
-            .map_err(err)?
             .iter()
             .map(|f| (f.table_id().table_id() as i32, f.actors()))
             .collect::<Vec<_>>();
diff --git a/src/meta/src/hummock/manager/worker.rs b/src/meta/src/hummock/manager/worker.rs
index 6b7bfcd79dc3a..5db54177b000b 100644
--- a/src/meta/src/hummock/manager/worker.rs
+++ b/src/meta/src/hummock/manager/worker.rs
@@ -103,7 +103,7 @@ where
             .max_delay(Duration::from_secs(60))
             .map(jitter);
         match notification {
-            LocalNotification::WorkerNodeIsDeleted(worker_node) => {
+            LocalNotification::WorkerNodeDeleted(worker_node) => {
                 if worker_node.get_type().unwrap() == WorkerType::Compactor {
                     self.compactor_manager.remove_compactor(worker_node.id);
                 }
@@ -153,7 +153,7 @@ where
                 tracing::info!("Cancelled compaction task {}", task_id);
                 sync_point!("AFTER_CANCEL_COMPACTION_TASK_ASYNC");
             }
-            LocalNotification::SystemParamsChange(_) => {}
+            _ => {}
         }
     }
 }
diff --git a/src/meta/src/lib.rs b/src/meta/src/lib.rs
index 776c445667531..9912947183855 100644
--- a/src/meta/src/lib.rs
+++ b/src/meta/src/lib.rs
@@ -37,6 +37,7 @@
 
 pub mod backup_restore;
 mod barrier;
+pub(crate) mod batch;
 #[cfg(not(madsim))] // no need in simulation test
 mod dashboard;
 mod error;
diff --git a/src/meta/src/manager/catalog/fragment.rs b/src/meta/src/manager/catalog/fragment.rs
index 8565b054ff898..2702219695594 100644
--- a/src/meta/src/manager/catalog/fragment.rs
+++ b/src/meta/src/manager/catalog/fragment.rs
@@ -36,7 +36,7 @@ use tokio::sync::{RwLock, RwLockReadGuard};
 
 use crate::barrier::Reschedule;
 use crate::manager::cluster::WorkerId;
-use crate::manager::{commit_meta, commit_meta_with_trx, MetaSrvEnv};
+use crate::manager::{commit_meta, commit_meta_with_trx, LocalNotification, MetaSrvEnv};
 use crate::model::{
     ActorId, BTreeMapTransaction, FragmentId, MetadataModel, MigrationPlan, TableFragments,
     ValTransaction,
@@ -68,6 +68,34 @@ impl FragmentManagerCore {
                 })
             })
     }
+
+    fn running_fragment_parallelisms(
+        &self,
+        id_filter: Option<HashSet<FragmentId>>,
+    ) -> HashMap<FragmentId, usize> {
+        self.table_fragments
+            .values()
+            .filter(|tf| tf.state() != State::Initial)
+            .flat_map(|table_fragments| {
+                table_fragments.fragments.values().filter_map(|fragment| {
+                    if let Some(id_filter) = id_filter.as_ref() && !id_filter.contains(&fragment.fragment_id) {
+                        return None;
+                    }
+                    let parallelism = match fragment.vnode_mapping.as_ref() {
+                        None => {
+                            tracing::warn!(
+                                "vnode mapping for fragment {} not found",
+                                fragment.fragment_id
+                            );
+                            1
+                        }
+                        Some(m) => ParallelUnitMapping::from_protobuf(m).iter_unique().count(),
+                    };
+                    Some((fragment.fragment_id, parallelism))
+                })
+            })
+            .collect()
+    }
 }
 
 /// `FragmentManager` stores definition and status of fragment as well as the actors inside.
@@ -118,10 +146,9 @@ where
         self.core.read().await
     }
 
-    pub async fn list_table_fragments(&self) -> MetaResult<Vec<TableFragments>> {
+    pub async fn list_table_fragments(&self) -> Vec<TableFragments> {
         let map = &self.core.read().await.table_fragments;
-
-        Ok(map.values().cloned().collect())
+        map.values().cloned().collect()
     }
 
     pub async fn get_revision(&self) -> TableRevision {
@@ -150,6 +177,30 @@ where
                     .await;
             }
         }
+
+        // Update serving vnode mappings.
+        let fragment_ids = table_fragment.fragment_ids().collect();
+        match operation {
+            Operation::Add | Operation::Update => {
+                self.env
+                    .notification_manager()
+                    .notify_local_subscribers(LocalNotification::FragmentMappingsUpsert(
+                        fragment_ids,
+                    ))
+                    .await;
+            }
+            Operation::Delete => {
+                self.env
+                    .notification_manager()
+                    .notify_local_subscribers(LocalNotification::FragmentMappingsDelete(
+                        fragment_ids,
+                    ))
+                    .await;
+            }
+            _ => {
+                tracing::warn!("unexpected fragment mapping op");
+            }
+        }
     }
 
     pub async fn select_table_fragments_by_table_id(
@@ -190,7 +241,6 @@ where
         if map.contains_key(&table_id) {
             bail!("table_fragment already exist: id={}", table_id);
         }
-
         let mut table_fragments = BTreeMapTransaction::new(map);
         table_fragments.insert(table_id, table_fragment);
         commit_meta!(self, table_fragments)
@@ -475,7 +525,7 @@ where
     /// Used in [`crate::barrier::GlobalBarrierManager`]
     /// migrate actors and update fragments one by one according to the migration plan.
     pub async fn migrate_fragment_actors(&self, migration_plan: &MigrationPlan) -> MetaResult<()> {
-        let table_fragments = self.list_table_fragments().await?;
+        let table_fragments = self.list_table_fragments().await;
         for mut table_fragment in table_fragments {
             let mut updated = false;
             for status in table_fragment.actor_status.values_mut() {
@@ -1021,4 +1071,14 @@ where
 
         Ok(mview_fragment)
     }
+
+    pub async fn running_fragment_parallelisms(
+        &self,
+        id_filter: Option<HashSet<FragmentId>>,
+    ) -> HashMap<FragmentId, usize> {
+        self.core
+            .read()
+            .await
+            .running_fragment_parallelisms(id_filter)
+    }
 }
diff --git a/src/meta/src/manager/cluster.rs b/src/meta/src/manager/cluster.rs
index 3d4b21835d4f7..dbf9173b91816 100644
--- a/src/meta/src/manager/cluster.rs
+++ b/src/meta/src/manager/cluster.rs
@@ -163,9 +163,13 @@ where
         if worker_type == WorkerType::ComputeNode {
             self.env
                 .notification_manager()
-                .notify_frontend(Operation::Add, Info::Node(worker.worker_node))
+                .notify_frontend(Operation::Add, Info::Node(worker.worker_node.clone()))
                 .await;
         }
+        self.env
+            .notification_manager()
+            .notify_local_subscribers(LocalNotification::WorkerNodeActivated(worker.worker_node))
+            .await;
 
         Ok(())
     }
@@ -195,7 +199,7 @@ where
         // local notification.
         self.env
             .notification_manager()
-            .notify_local_subscribers(LocalNotification::WorkerNodeIsDeleted(worker_node))
+            .notify_local_subscribers(LocalNotification::WorkerNodeDeleted(worker_node))
             .await;
 
         Ok(worker_type)
@@ -325,6 +329,11 @@ where
         core.list_active_streaming_parallel_units()
     }
 
+    pub async fn list_active_serving_compute_nodes(&self) -> Vec<WorkerNode> {
+        let core = self.core.read().await;
+        core.list_serving_worker_node(Some(State::Running))
+    }
+
     /// Get the cluster info used for scheduling a streaming job.
     pub async fn get_streaming_cluster_info(&self) -> StreamingClusterInfo {
         let core = self.core.read().await;
@@ -476,6 +485,13 @@ impl ClusterManagerCore {
             .collect()
     }
 
+    pub fn list_serving_worker_node(&self, worker_state: Option<State>) -> Vec<WorkerNode> {
+        self.list_worker_node(WorkerType::ComputeNode, worker_state)
+            .into_iter()
+            .filter(|w| w.property.as_ref().map_or(false, |p| p.is_serving))
+            .collect()
+    }
+
     fn list_active_streaming_parallel_units(&self) -> Vec<ParallelUnit> {
         let active_workers: HashSet<_> = self
             .list_streaming_worker_node(Some(State::Running))
diff --git a/src/meta/src/manager/notification.rs b/src/meta/src/manager/notification.rs
index f4d6d49a606b9..029948a7b6fb4 100644
--- a/src/meta/src/manager/notification.rs
+++ b/src/meta/src/manager/notification.rs
@@ -29,7 +29,7 @@ use tokio::sync::Mutex;
 use tonic::Status;
 
 use crate::manager::cluster::WorkerKey;
-use crate::model::NotificationVersion as Version;
+use crate::model::{FragmentId, NotificationVersion as Version};
 use crate::storage::MetaStore;
 
 pub type MessageStatus = Status;
@@ -39,9 +39,12 @@ pub type NotificationVersion = u64;
 
 #[derive(Clone, Debug)]
 pub enum LocalNotification {
-    WorkerNodeIsDeleted(WorkerNode),
+    WorkerNodeDeleted(WorkerNode),
+    WorkerNodeActivated(WorkerNode),
     CompactionTaskNeedCancel(CompactTask),
     SystemParamsChange(SystemParamsReader),
+    FragmentMappingsUpsert(Vec<FragmentId>),
+    FragmentMappingsDelete(Vec<FragmentId>),
 }
 
 #[derive(Debug)]
diff --git a/src/meta/src/rpc/metrics.rs b/src/meta/src/rpc/metrics.rs
index 0715bf4ead61a..d7d1ce859ef53 100644
--- a/src/meta/src/rpc/metrics.rs
+++ b/src/meta/src/rpc/metrics.rs
@@ -615,13 +615,7 @@ pub async fn start_fragment_info_monitor<S: MetaStore>(
             // report full info on each interval.
             meta_metrics.actor_info.reset();
             meta_metrics.table_info.reset();
-            let fragments = match fragment_manager.list_table_fragments().await {
-                Ok(f) => f,
-                Err(e) => {
-                    tracing::error!("Error when in list_table_fragments: {:?}", e);
-                    continue;
-                }
-            };
+            let fragments = fragment_manager.list_table_fragments().await;
             let workers: HashMap<u32, String> = cluster_manager
                 .list_worker_node(WorkerType::ComputeNode, None)
                 .await
diff --git a/src/meta/src/rpc/server.rs b/src/meta/src/rpc/server.rs
index 030a75ddc1983..2646b49428f8e 100644
--- a/src/meta/src/rpc/server.rs
+++ b/src/meta/src/rpc/server.rs
@@ -54,6 +54,7 @@ use super::service::scale_service::ScaleServiceImpl;
 use super::DdlServiceImpl;
 use crate::backup_restore::BackupManager;
 use crate::barrier::{BarrierScheduler, GlobalBarrierManager};
+use crate::batch::ServingVnodeMapping;
 use crate::hummock::{CompactionScheduler, HummockManager};
 use crate::manager::{
     CatalogManager, ClusterManager, FragmentManager, IdleManager, MetaOpts, MetaSrvEnv,
@@ -74,7 +75,7 @@ use crate::rpc::service::user_service::UserServiceImpl;
 use crate::storage::{EtcdMetaStore, MemStore, MetaStore, WrappedEtcdClient as EtcdClient};
 use crate::stream::{GlobalStreamManager, SourceManager};
 use crate::telemetry::{MetaReportCreator, MetaTelemetryInfoFetcher};
-use crate::{hummock, MetaError, MetaResult};
+use crate::{batch, hummock, MetaError, MetaResult};
 
 #[derive(Debug)]
 pub enum MetaStoreBackend {
@@ -356,6 +357,14 @@ pub async fn start_service_as_election_leader<S: MetaStore>(
             .await
             .unwrap(),
     );
+    let serving_vnode_mapping = Arc::new(ServingVnodeMapping::default());
+    batch::on_meta_start(
+        env.notification_manager_ref(),
+        cluster_manager.clone(),
+        fragment_manager.clone(),
+        serving_vnode_mapping.clone(),
+    )
+    .await;
     let heartbeat_srv = HeartbeatServiceImpl::new(cluster_manager.clone());
 
     let compactor_manager = Arc::new(
@@ -523,6 +532,7 @@ pub async fn start_service_as_election_leader<S: MetaStore>(
         hummock_manager.clone(),
         fragment_manager.clone(),
         backup_manager.clone(),
+        serving_vnode_mapping.clone(),
     );
     let health_srv = HealthServiceImpl::new();
     let backup_srv = BackupServiceImpl::new(backup_manager);
@@ -569,6 +579,15 @@ pub async fn start_service_as_election_leader<S: MetaStore>(
     sub_tasks.push(SystemParamsManager::start_params_notifier(system_params_manager.clone()).await);
     sub_tasks.push(HummockManager::start_compaction_heartbeat(hummock_manager.clone()).await);
     sub_tasks.push(HummockManager::start_lsm_stat_report(hummock_manager).await);
+    sub_tasks.push(
+        batch::start_serving_vnode_mapping_worker(
+            env.notification_manager_ref(),
+            cluster_manager.clone(),
+            fragment_manager.clone(),
+            serving_vnode_mapping,
+        )
+        .await,
+    );
 
     if cfg!(not(test)) {
         sub_tasks.push(
diff --git a/src/meta/src/rpc/service/notification_service.rs b/src/meta/src/rpc/service/notification_service.rs
index df76c2dbfcde9..6699017432f66 100644
--- a/src/meta/src/rpc/service/notification_service.rs
+++ b/src/meta/src/rpc/service/notification_service.rs
@@ -29,6 +29,7 @@ use tokio_stream::wrappers::UnboundedReceiverStream;
 use tonic::{Request, Response, Status};
 
 use crate::backup_restore::BackupManagerRef;
+use crate::batch::ServingVnodeMappingRef;
 use crate::hummock::HummockManagerRef;
 use crate::manager::{
     Catalog, CatalogManagerRef, ClusterManagerRef, FragmentManagerRef, MetaSrvEnv, Notification,
@@ -44,6 +45,7 @@ pub struct NotificationServiceImpl<S: MetaStore> {
     hummock_manager: HummockManagerRef<S>,
     fragment_manager: FragmentManagerRef<S>,
     backup_manager: BackupManagerRef<S>,
+    serving_vnode_mapping: ServingVnodeMappingRef,
 }
 
 impl<S> NotificationServiceImpl<S>
@@ -57,6 +59,7 @@ where
         hummock_manager: HummockManagerRef<S>,
         fragment_manager: FragmentManagerRef<S>,
         backup_manager: BackupManagerRef<S>,
+        serving_vnode_mapping: ServingVnodeMappingRef,
     ) -> Self {
         Self {
             env,
@@ -65,6 +68,7 @@ where
             hummock_manager,
             fragment_manager,
             backup_manager,
+            serving_vnode_mapping,
         }
     }
 
@@ -100,6 +104,17 @@ where
         (parallel_unit_mappings, notification_version)
     }
 
+    fn get_serving_vnode_mappings(&self) -> Vec<FragmentParallelUnitMapping> {
+        self.serving_vnode_mapping
+            .all()
+            .iter()
+            .map(|(fragment_id, mapping)| FragmentParallelUnitMapping {
+                fragment_id: *fragment_id,
+                mapping: Some(mapping.to_protobuf()),
+            })
+            .collect()
+    }
+
     async fn get_worker_node_snapshot(&self) -> (Vec<WorkerNode>, NotificationVersion) {
         let cluster_guard = self.cluster_manager.get_cluster_core_guard().await;
         let nodes = cluster_guard.list_worker_node(WorkerType::ComputeNode, Some(Running));
@@ -136,6 +151,7 @@ where
         ) = self.get_catalog_snapshot().await;
         let (parallel_unit_mappings, parallel_unit_mapping_version) =
             self.get_parallel_unit_mapping_snapshot().await;
+        let serving_parallel_unit_mappings = self.get_serving_vnode_mappings();
         let (nodes, worker_node_version) = self.get_worker_node_snapshot().await;
 
         let hummock_snapshot = Some(self.hummock_manager.get_last_epoch().unwrap());
@@ -154,6 +170,7 @@ where
             parallel_unit_mappings,
             nodes,
             hummock_snapshot,
+            serving_parallel_unit_mappings,
             version: Some(SnapshotVersion {
                 catalog_version,
                 parallel_unit_mapping_version,
diff --git a/src/meta/src/rpc/service/scale_service.rs b/src/meta/src/rpc/service/scale_service.rs
index d69a9f69ac349..d8c32be1db6b3 100644
--- a/src/meta/src/rpc/service/scale_service.rs
+++ b/src/meta/src/rpc/service/scale_service.rs
@@ -90,7 +90,7 @@ where
         let table_fragments = self
             .fragment_manager
             .list_table_fragments()
-            .await?
+            .await
             .iter()
             .map(|tf| tf.to_protobuf())
             .collect();
diff --git a/src/meta/src/rpc/service/stream_service.rs b/src/meta/src/rpc/service/stream_service.rs
index 7e320843ed402..1c90d566c4122 100644
--- a/src/meta/src/rpc/service/stream_service.rs
+++ b/src/meta/src/rpc/service/stream_service.rs
@@ -104,7 +104,7 @@ where
     ) -> Result<Response<ListTableFragmentsResponse>, Status> {
         let req = request.into_inner();
         let table_ids = HashSet::<u32>::from_iter(req.table_ids);
-        let table_fragments = self.fragment_manager.list_table_fragments().await?;
+        let table_fragments = self.fragment_manager.list_table_fragments().await;
         let info = table_fragments
             .into_iter()
             .filter(|tf| table_ids.contains(&tf.table_id().table_id))
diff --git a/src/meta/src/stream/scale.rs b/src/meta/src/stream/scale.rs
index 5f274d438bb3a..9eacf404adca3 100644
--- a/src/meta/src/stream/scale.rs
+++ b/src/meta/src/stream/scale.rs
@@ -386,7 +386,7 @@ where
         // Index for actor status, including actor's parallel unit
         let mut actor_status = BTreeMap::new();
         let mut fragment_state = HashMap::new();
-        for table_fragments in self.fragment_manager.list_table_fragments().await? {
+        for table_fragments in self.fragment_manager.list_table_fragments().await {
             fragment_state.extend(
                 table_fragments
                     .fragment_ids()
diff --git a/src/meta/src/stream/source_manager.rs b/src/meta/src/stream/source_manager.rs
index fcee8c3ebea80..fa2b515e9f461 100644
--- a/src/meta/src/stream/source_manager.rs
+++ b/src/meta/src/stream/source_manager.rs
@@ -520,7 +520,7 @@ where
 
         let mut actor_splits = HashMap::new();
         let mut source_fragments = HashMap::new();
-        for table_fragments in fragment_manager.list_table_fragments().await? {
+        for table_fragments in fragment_manager.list_table_fragments().await {
             source_fragments.extend(table_fragments.stream_source_fragments());
             actor_splits.extend(table_fragments.actor_splits.clone());
         }
diff --git a/src/storage/hummock_test/src/sync_point_tests.rs b/src/storage/hummock_test/src/sync_point_tests.rs
index 712863e6b4962..49515c08881f8 100644
--- a/src/storage/hummock_test/src/sync_point_tests.rs
+++ b/src/storage/hummock_test/src/sync_point_tests.rs
@@ -208,7 +208,7 @@ async fn test_syncpoints_test_local_notification_receiver() {
 
     // Test release hummock contexts
     env.notification_manager()
-        .notify_local_subscribers(LocalNotification::WorkerNodeIsDeleted(worker_node))
+        .notify_local_subscribers(LocalNotification::WorkerNodeDeleted(worker_node))
         .await;
     sync_point::wait_timeout(
         "AFTER_RELEASE_HUMMOCK_CONTEXTS_ASYNC",

From 3017aa26300b1511ffa2dc28c99c50fcf9142b40 Mon Sep 17 00:00:00 2001
From: xxchan <xxchan22f@gmail.com>
Date: Tue, 13 Jun 2023 20:58:37 +0200
Subject: [PATCH 08/12] ci: download dependencies from s3 (#9782)

---
 ci/scripts/common.sh                | 3 +++
 ci/scripts/e2e-iceberg-sink-test.sh | 2 +-
 src/risedevtool/gcloud-pubsub.toml  | 6 ++----
 src/risedevtool/minio.toml          | 4 ++--
 4 files changed, 8 insertions(+), 7 deletions(-)

diff --git a/ci/scripts/common.sh b/ci/scripts/common.sh
index 7f9d926301948..facef8aa3532d 100644
--- a/ci/scripts/common.sh
+++ b/ci/scripts/common.sh
@@ -10,6 +10,9 @@ export SCCACHE_REGION=us-east-2
 export SCCACHE_IDLE_TIMEOUT=0
 export CARGO_INCREMENTAL=0
 export CARGO_MAKE_PRINT_TIME_SUMMARY=true
+export MINIO_DOWNLOAD_BIN=https://ci-deps-dist.s3.amazonaws.com/minio
+export MCLI_DOWNLOAD_BIN=https://ci-deps-dist.s3.amazonaws.com/mc
+export GCLOUD_DOWNLOAD_TGZ=https://ci-deps-dist.s3.amazonaws.com/google-cloud-cli-406.0.0-linux-x86_64.tar.gz
 unset LANG
 if [ -n "${BUILDKITE_COMMIT:-}" ]; then
   export GIT_SHA=$BUILDKITE_COMMIT
diff --git a/ci/scripts/e2e-iceberg-sink-test.sh b/ci/scripts/e2e-iceberg-sink-test.sh
index 1b366cc9e0a56..64aa2859c0688 100755
--- a/ci/scripts/e2e-iceberg-sink-test.sh
+++ b/ci/scripts/e2e-iceberg-sink-test.sh
@@ -41,7 +41,7 @@ sleep 1
 # prepare minio iceberg sink
 echo "--- preparing iceberg"
 .risingwave/bin/mcli -C .risingwave/config/mcli mb hummock-minio/iceberg
-wget https://iceberg-ci-spark-dist.s3.amazonaws.com/spark-3.3.1-bin-hadoop3.tgz
+wget https://ci-deps-dist.s3.amazonaws.com/spark-3.3.1-bin-hadoop3.tgz
 tar -xf spark-3.3.1-bin-hadoop3.tgz --no-same-owner
 DEPENDENCIES=org.apache.iceberg:iceberg-spark-runtime-3.3_2.12:1.0.0,org.apache.hadoop:hadoop-aws:3.3.2
 spark-3.3.1-bin-hadoop3/bin/spark-sql --packages $DEPENDENCIES \
diff --git a/src/risedevtool/gcloud-pubsub.toml b/src/risedevtool/gcloud-pubsub.toml
index 771c8648b18e5..313561b287cba 100644
--- a/src/risedevtool/gcloud-pubsub.toml
+++ b/src/risedevtool/gcloud-pubsub.toml
@@ -2,9 +2,7 @@ extend = "common.toml"
 
 [env]
 GCLOUD_DOWNLOAD_PATH = "${PREFIX_TMP}/gcloud.tgz"
-GCLOUD_VERSION = "406.0.0"
-GCLOUD_RELEASE = "google-cloud-cli-${GCLOUD_VERSION}-linux-x86_64.tar.gz"
-GCLOUD_DOWNLOAD_TGZ = "https://dl.google.com/dl/cloudsdk/channels/rapid/downloads/${GCLOUD_RELEASE}"
+GCLOUD_DOWNLOAD_TGZ = { value = "https://dl.google.com/dl/cloudsdk/channels/rapid/downloads/google-cloud-cli-406.0.0-linux-x86_64.tar.gz", condition = { env_not_set = [ "GCLOUD_DOWNLOAD_TGZ" ] } }
 GCLOUD_SDK_DIR = "google-cloud-sdk"
 
 [tasks.download-pubsub]
@@ -19,7 +17,7 @@ set -e
 if [ -d "${PREFIX_BIN}/gcloud" ]; then
     exit 0
 fi
-echo "gcloud not found, download ${GCLOUD_RELEASE}"
+echo "gcloud not found, downloading"
 curl -fL -o "${GCLOUD_DOWNLOAD_PATH}" "${GCLOUD_DOWNLOAD_TGZ}"
 tar -xf "${GCLOUD_DOWNLOAD_PATH}" -C "${PREFIX_TMP}"
 echo "install the pubsub-emulator"
diff --git a/src/risedevtool/minio.toml b/src/risedevtool/minio.toml
index 34c5ae1f3569a..fea898ad6d233 100644
--- a/src/risedevtool/minio.toml
+++ b/src/risedevtool/minio.toml
@@ -2,8 +2,8 @@ extend = "common.toml"
 
 [env]
 MINIO_SYSTEM = "${SYSTEM}"
-MCLI_DOWNLOAD_BIN = "https://dl.min.io/client/mc/release/${MINIO_SYSTEM}/mc"
-MINIO_DOWNLOAD_BIN = "https://dl.min.io/server/minio/release/${MINIO_SYSTEM}/minio"
+MCLI_DOWNLOAD_BIN = { value = "https://dl.min.io/client/mc/release/${MINIO_SYSTEM}/mc", condition = { env_not_set = [ "MCLI_DOWNLOAD_BIN" ] } }
+MINIO_DOWNLOAD_BIN = { value = "https://dl.min.io/server/minio/release/${MINIO_SYSTEM}/minio", condition = { env_not_set = [ "MINIO_DOWNLOAD_BIN" ] } }
 
 [tasks.download-minio]
 private = true

From 07f6b5270ba0d990771571f94917ed23ac89ee7e Mon Sep 17 00:00:00 2001
From: xxchan <xxchan22f@gmail.com>
Date: Tue, 13 Jun 2023 21:31:21 +0200
Subject: [PATCH 09/12] fix: use alias as table function's column name (#10311)

---
 e2e_test/batch/basic/range.slt.part     | 16 ++++++++++++++++
 src/frontend/src/binder/relation/mod.rs | 20 +++++++++++++++++++-
 2 files changed, 35 insertions(+), 1 deletion(-)

diff --git a/e2e_test/batch/basic/range.slt.part b/e2e_test/batch/basic/range.slt.part
index 436a2639593d9..9d404e5f5b97b 100644
--- a/e2e_test/batch/basic/range.slt.part
+++ b/e2e_test/batch/basic/range.slt.part
@@ -113,3 +113,19 @@ SELECT * FROM range(0.1::numeric, 2.1::numeric, 0.5::numeric)
 0.6
 1.1
 1.6
+
+# test table function with aliases
+query I
+SELECT alias from range(1,2) alias;
+----
+1
+
+query I
+SELECT alias.alias from range(1,2) alias;
+----
+1
+
+query I
+SELECT alias.col from range(1,2) alias(col);
+----
+1
diff --git a/src/frontend/src/binder/relation/mod.rs b/src/frontend/src/binder/relation/mod.rs
index c650d21cf3291..e0c8dc46a40a0 100644
--- a/src/frontend/src/binder/relation/mod.rs
+++ b/src/frontend/src/binder/relation/mod.rs
@@ -462,10 +462,28 @@ impl Binder {
                     .into());
                 };
                 let columns = if let DataType::Struct(s) = tf.return_type() {
+                    // If the table function returns a struct, it's fields can be accessed just
+                    // like a table's columns.
                     let schema = Schema::from(&s);
                     schema.fields.into_iter().map(|f| (false, f)).collect_vec()
                 } else {
-                    vec![(false, Field::with_name(tf.return_type(), tf.name()))]
+                    // If there is an table alias, we should use the alias as the table function's
+                    // column name. If column aliases are also provided, they
+                    // are handled in bind_table_to_context.
+                    //
+                    // Note: named return value should take precedence over table alias.
+                    // But we don't support it yet.
+                    // e.g.,
+                    // ```
+                    // > create function foo(ret out int) language sql as 'select 1';
+                    // > select t.ret from foo() as t;
+                    // ```
+                    let col_name = if let Some(alias) = &alias {
+                        alias.name.real_value()
+                    } else {
+                        tf.name()
+                    };
+                    vec![(false, Field::with_name(tf.return_type(), col_name))]
                 };
 
                 self.bind_table_to_context(columns, tf.name(), alias)?;

From e02ef6cfe79c873041445eaef79d7965f8cb3e79 Mon Sep 17 00:00:00 2001
From: Eric Fu <eric@singularity-data.com>
Date: Wed, 14 Jun 2023 03:42:56 +0800
Subject: [PATCH 10/12] fix: jemalloc profiling (#10314)

Co-authored-by: xxchan <xxchan22f@gmail.com>
---
 src/risedevtool/src/task/compactor_service.rs    | 2 +-
 src/risedevtool/src/task/compute_node_service.rs | 2 +-
 src/risedevtool/src/task/meta_node_service.rs    | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/risedevtool/src/task/compactor_service.rs b/src/risedevtool/src/task/compactor_service.rs
index 435b3b49b406f..a8d5952a4ad45 100644
--- a/src/risedevtool/src/task/compactor_service.rs
+++ b/src/risedevtool/src/task/compactor_service.rs
@@ -95,7 +95,7 @@ impl Task for CompactorService {
         if crate::util::is_env_set("RISEDEV_ENABLE_HEAP_PROFILE") {
             // See https://linux.die.net/man/3/jemalloc for the descriptions of profiling options
             cmd.env(
-                "_RJEM_MALLOC_CONF",
+                "MALLOC_CONF",
                 "prof:true,lg_prof_interval:38,lg_prof_sample:19,prof_prefix:compactor",
             );
         }
diff --git a/src/risedevtool/src/task/compute_node_service.rs b/src/risedevtool/src/task/compute_node_service.rs
index e3fbb0845858a..dabad23c9ee61 100644
--- a/src/risedevtool/src/task/compute_node_service.rs
+++ b/src/risedevtool/src/task/compute_node_service.rs
@@ -115,7 +115,7 @@ impl Task for ComputeNodeService {
         if crate::util::is_env_set("RISEDEV_ENABLE_HEAP_PROFILE") {
             // See https://linux.die.net/man/3/jemalloc for the descriptions of profiling options
             cmd.env(
-                "_RJEM_MALLOC_CONF",
+                "MALLOC_CONF",
                 "prof:true,lg_prof_interval:40,lg_prof_sample:19,prof_prefix:compute-node",
             );
         }
diff --git a/src/risedevtool/src/task/meta_node_service.rs b/src/risedevtool/src/task/meta_node_service.rs
index 4ad34b91e03e9..06544723c123b 100644
--- a/src/risedevtool/src/task/meta_node_service.rs
+++ b/src/risedevtool/src/task/meta_node_service.rs
@@ -184,7 +184,7 @@ impl Task for MetaNodeService {
         if crate::util::is_env_set("RISEDEV_ENABLE_HEAP_PROFILE") {
             // See https://linux.die.net/man/3/jemalloc for the descriptions of profiling options
             cmd.env(
-                "_RJEM_MALLOC_CONF",
+                "MALLOC_CONF",
                 "prof:true,lg_prof_interval:32,lg_prof_sample:19,prof_prefix:meta-node",
             );
         }

From 86f734cbea2280d1d88f1c7b6c15ac00f31bf365 Mon Sep 17 00:00:00 2001
From: Shanicky Chen <peng@singularity-data.com>
Date: Wed, 14 Jun 2023 03:45:42 +0800
Subject: [PATCH 11/12] fix: Increase timeout for end-to-end test (parallel)
 (dev mode) (#10308)

Co-authored-by: xxchan <xxchan22f@gmail.com>
---
 ci/workflows/main.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ci/workflows/main.yml b/ci/workflows/main.yml
index 31a6521bcceb7..d9164e84a04bc 100644
--- a/ci/workflows/main.yml
+++ b/ci/workflows/main.yml
@@ -111,7 +111,7 @@ steps:
           files: "*-junit.xml"
           format: "junit"
       - ./ci/plugins/upload-failure-logs
-    timeout_in_minutes: 10
+    timeout_in_minutes: 15
 
   - label: "end-to-end test (parallel) (release mode)"
     command: "ci/scripts/e2e-test-parallel.sh -p ci-release"

From 8eb0e4307af59c2c1aac90d8c92ab27ea84662ea Mon Sep 17 00:00:00 2001
From: Huangjw <1223644280@qq.com>
Date: Wed, 14 Jun 2023 11:01:28 +0800
Subject: [PATCH 12/12] fix(ci): fix release script (#10325)

---
 ci/scripts/release.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/ci/scripts/release.sh b/ci/scripts/release.sh
index 043898d9e842c..c5af7aaab1228 100755
--- a/ci/scripts/release.sh
+++ b/ci/scripts/release.sh
@@ -40,7 +40,7 @@ curl "https://awscli.amazonaws.com/awscli-exe-linux-x86_64.zip" -o "awscliv2.zip
 unzip -q awscliv2.zip && ./aws/install && mv /usr/local/bin/aws /bin/aws
 
 echo "--- Check risingwave release version"
-if [[ -n "${BUILDKITE_TAG+x}" ]]; then
+if [[ -n "${BUILDKITE_TAG}" ]]; then
   CARGO_PKG_VERSION="$(toml get --toml-path Cargo.toml workspace.package.version)"
   if [[ "${CARGO_PKG_VERSION}" != "${BUILDKITE_TAG#*v}" ]]; then
     echo "CARGO_PKG_VERSION: ${CARGO_PKG_VERSION}"
@@ -64,7 +64,7 @@ elif [[ -n "${BINARY_NAME+x}" ]]; then
     aws s3 cp risingwave-${BINARY_NAME}-x86_64-unknown-linux.tar.gz s3://risingwave-nightly-pre-built-binary
 fi
 
-if [[ -n "${BUILDKITE_TAG+x}" ]]; then
+if [[ -n "${BUILDKITE_TAG}" ]]; then
   echo "--- Install gh cli"
   yum install -y dnf
   dnf install -y 'dnf-command(config-manager)'