[Remote Store] Inject remote store in IndexShard instead of RemoteSto…

…reRefreshListener (#3703) * Inject remote store in IndexShard instead of RemoteStoreRefreshListener Signed-off-by: Sachin Kale <kalsac@amazon.com> * Pass supplier of RepositoriesService to RemoteDirectoryFactory Signed-off-by: Sachin Kale <kalsac@amazon.com> * Create isRemoteStoreEnabled function for IndexShard Signed-off-by: Sachin Kale <kalsac@amazon.com> * Explicitly close remoteStore on indexShard close Signed-off-by: Sachin Kale <kalsac@amazon.com> * Change RemoteDirectory.close to a no-op Signed-off-by: Sachin Kale <kalsac@amazon.com> Co-authored-by: Sachin Kale <kalsac@amazon.com>
opensearch-project · Jun 29, 2022 · 30209d8 · 30209d8
1 parent 47c191b
commit 30209d8
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Showing 13 changed files with 146 additions and 80 deletions.
diff --git a/server/src/main/java/org/opensearch/index/IndexModule.java b/server/src/main/java/org/opensearch/index/IndexModule.java
@@ -119,8 +119,6 @@ public final class IndexModule {
 
     private static final FsDirectoryFactory DEFAULT_DIRECTORY_FACTORY = new FsDirectoryFactory();
 
-    private static final RemoteDirectoryFactory REMOTE_DIRECTORY_FACTORY = new RemoteDirectoryFactory();
-
     private static final IndexStorePlugin.RecoveryStateFactory DEFAULT_RECOVERY_STATE_FACTORY = RecoveryState::new;
 
     public static final Setting<String> INDEX_STORE_TYPE_SETTING = new Setting<>(
@@ -189,9 +187,9 @@ public final class IndexModule {
      * Construct the index module for the index with the specified index settings. The index module contains extension points for plugins
      * via {@link org.opensearch.plugins.PluginsService#onIndexModule(IndexModule)}.
      *
-     * @param indexSettings       the index settings
-     * @param analysisRegistry    the analysis registry
-     * @param engineFactory       the engine factory
+     * @param indexSettings      the index settings
+     * @param analysisRegistry   the analysis registry
+     * @param engineFactory      the engine factory
      * @param directoryFactories the available store types
      */
     public IndexModule(
@@ -476,7 +474,8 @@ public IndexService newIndexService(
         IndicesFieldDataCache indicesFieldDataCache,
         NamedWriteableRegistry namedWriteableRegistry,
         BooleanSupplier idFieldDataEnabled,
-        ValuesSourceRegistry valuesSourceRegistry
+        ValuesSourceRegistry valuesSourceRegistry,
+        RemoteDirectoryFactory remoteDirectoryFactory
     ) throws IOException {
         final IndexEventListener eventListener = freeze();
         Function<IndexService, CheckedFunction<DirectoryReader, DirectoryReader, IOException>> readerWrapperFactory = indexReaderWrapper
@@ -519,7 +518,7 @@ public IndexService newIndexService(
                 client,
                 queryCache,
                 directoryFactory,
-                REMOTE_DIRECTORY_FACTORY,
+                remoteDirectoryFactory,
                 eventListener,
                 readerWrapperFactory,
                 mapperRegistry,

diff --git a/server/src/main/java/org/opensearch/index/IndexService.java b/server/src/main/java/org/opensearch/index/IndexService.java
@@ -81,7 +81,6 @@
 import org.opensearch.index.shard.IndexShard;
 import org.opensearch.index.shard.IndexShardClosedException;
 import org.opensearch.index.shard.IndexingOperationListener;
-import org.opensearch.index.shard.RemoteStoreRefreshListener;
 import org.opensearch.index.shard.SearchOperationListener;
 import org.opensearch.index.shard.ShardId;
 import org.opensearch.index.shard.ShardNotFoundException;
@@ -97,9 +96,6 @@
 import org.opensearch.indices.recovery.RecoveryState;
 import org.opensearch.indices.replication.checkpoint.SegmentReplicationCheckpointPublisher;
 import org.opensearch.plugins.IndexStorePlugin;
-import org.opensearch.repositories.RepositoriesService;
-import org.opensearch.repositories.Repository;
-import org.opensearch.repositories.RepositoryMissingException;
 import org.opensearch.script.ScriptService;
 import org.opensearch.search.aggregations.support.ValuesSourceRegistry;
 import org.opensearch.threadpool.ThreadPool;
@@ -437,8 +433,7 @@ public synchronized IndexShard createShard(
         final ShardRouting routing,
         final Consumer<ShardId> globalCheckpointSyncer,
         final RetentionLeaseSyncer retentionLeaseSyncer,
-        final SegmentReplicationCheckpointPublisher checkpointPublisher,
-        final RepositoriesService repositoriesService
+        final SegmentReplicationCheckpointPublisher checkpointPublisher
     ) throws IOException {
         Objects.requireNonNull(retentionLeaseSyncer);
         /*
@@ -511,22 +506,24 @@ public synchronized IndexShard createShard(
                     warmer.warm(reader, shard, IndexService.this.indexSettings);
                 }
             };
-            Directory directory = directoryFactory.newDirectory(this.indexSettings, path);
-            Directory remoteDirectory = null;
-            RemoteStoreRefreshListener remoteStoreRefreshListener = null;
+
+            Store remoteStore = null;
             if (this.indexSettings.isRemoteStoreEnabled()) {
-                try {
-                    Repository repository = repositoriesService.repository(clusterService.state().metadata().clusterUUID());
-                    remoteDirectory = remoteDirectoryFactory.newDirectory(this.indexSettings, path, repository);
-                    remoteStoreRefreshListener = new RemoteStoreRefreshListener(directory, remoteDirectory);
-                } catch (RepositoryMissingException e) {
-                    throw new IllegalArgumentException(
-                        "Repository should be created before creating index with remote_store enabled setting",
-                        e
-                    );
-                }
+                Directory remoteDirectory = remoteDirectoryFactory.newDirectory(
+                    clusterService.state().metadata().clusterUUID(),
+                    this.indexSettings,
+                    path
+                );
+                remoteStore = new Store(
+                    shardId,
+                    this.indexSettings,
+                    remoteDirectory,
+                    lock,
+                    new StoreCloseListener(shardId, () -> eventListener.onStoreClosed(shardId))
+                );
             }
 
+            Directory directory = directoryFactory.newDirectory(this.indexSettings, path);
             store = new Store(
                 shardId,
                 this.indexSettings,
@@ -557,7 +554,7 @@ public synchronized IndexShard createShard(
                 retentionLeaseSyncer,
                 circuitBreakerService,
                 this.indexSettings.isSegRepEnabled() && routing.primary() ? checkpointPublisher : null,
-                remoteStoreRefreshListener
+                remoteStore
             );
             eventListener.indexShardStateChanged(indexShard, null, indexShard.state(), "shard created");
             eventListener.afterIndexShardCreated(indexShard);

diff --git a/server/src/main/java/org/opensearch/index/shard/IndexShard.java b/server/src/main/java/org/opensearch/index/shard/IndexShard.java
@@ -48,6 +48,8 @@
 import org.apache.lucene.search.Sort;
 import org.apache.lucene.search.UsageTrackingQueryCachingPolicy;
 import org.apache.lucene.store.AlreadyClosedException;
+import org.apache.lucene.store.Directory;
+import org.apache.lucene.store.FilterDirectory;
 import org.apache.lucene.util.SetOnce;
 import org.apache.lucene.util.ThreadInterruptedException;
 import org.opensearch.Assertions;
@@ -305,7 +307,7 @@ Runnable getGlobalCheckpointSyncer() {
     private volatile boolean useRetentionLeasesInPeerRecovery;
     private final ReferenceManager.RefreshListener checkpointRefreshListener;
 
-    private final RemoteStoreRefreshListener remoteStoreRefreshListener;
+    private final Store remoteStore;
 
     public IndexShard(
         final ShardRouting shardRouting,
@@ -329,7 +331,7 @@ public IndexShard(
         final RetentionLeaseSyncer retentionLeaseSyncer,
         final CircuitBreakerService circuitBreakerService,
         @Nullable final SegmentReplicationCheckpointPublisher checkpointPublisher,
-        @Nullable final RemoteStoreRefreshListener remoteStoreRefreshListener
+        @Nullable final Store remoteStore
     ) throws IOException {
         super(shardRouting.shardId(), indexSettings);
         assert shardRouting.initializing();
@@ -417,7 +419,7 @@ public boolean shouldCache(Query query) {
         } else {
             this.checkpointRefreshListener = null;
         }
-        this.remoteStoreRefreshListener = remoteStoreRefreshListener;
+        this.remoteStore = remoteStore;
     }
 
     public ThreadPool getThreadPool() {
@@ -428,6 +430,10 @@ public Store store() {
         return this.store;
     }
 
+    public Store remoteStore() {
+        return this.remoteStore;
+    }
+
     /**
      * Return the sort order of this index, or null if the index has no sort.
      */
@@ -1638,7 +1644,8 @@ public void close(String reason, boolean flushEngine) throws IOException {
                 } finally {
                     // playing safe here and close the engine even if the above succeeds - close can be called multiple times
                     // Also closing refreshListeners to prevent us from accumulating any more listeners
-                    IOUtils.close(engine, globalCheckpointListeners, refreshListeners, pendingReplicationActions);
+                    // Closing remoteStore as a part of IndexShard close. null check is handled by IOUtils
+                    IOUtils.close(engine, globalCheckpointListeners, refreshListeners, pendingReplicationActions, remoteStore);
                     indexShardOperationPermits.close();
                 }
             }
@@ -3192,7 +3199,7 @@ private DocumentMapperForType docMapper() {
         return mapperService.documentMapperWithAutoCreate();
     }
 
-    private EngineConfig newEngineConfig(LongSupplier globalCheckpointSupplier) {
+    private EngineConfig newEngineConfig(LongSupplier globalCheckpointSupplier) throws IOException {
         final Sort indexSort = indexSortSupplier.get();
         final Engine.Warmer warmer = reader -> {
             assert Thread.holdsLock(mutex) == false : "warming engine under mutex";
@@ -3204,8 +3211,9 @@ private EngineConfig newEngineConfig(LongSupplier globalCheckpointSupplier) {
 
         final List<ReferenceManager.RefreshListener> internalRefreshListener = new ArrayList<>();
         internalRefreshListener.add(new RefreshMetricUpdater(refreshMetric));
-        if (remoteStoreRefreshListener != null && shardRouting.primary()) {
-            internalRefreshListener.add(remoteStoreRefreshListener);
+        if (isRemoteStoreEnabled()) {
+            Directory remoteDirectory = ((FilterDirectory) ((FilterDirectory) remoteStore.directory()).getDelegate()).getDelegate();
+            internalRefreshListener.add(new RemoteStoreRefreshListener(store.directory(), remoteDirectory));
         }
         if (this.checkpointRefreshListener != null) {
             internalRefreshListener.add(checkpointRefreshListener);
@@ -3238,6 +3246,10 @@ private EngineConfig newEngineConfig(LongSupplier globalCheckpointSupplier) {
         );
     }
 
+    private boolean isRemoteStoreEnabled() {
+        return (remoteStore != null && shardRouting.primary());
+    }
+
     /**
      * Acquire a primary operation permit whenever the shard is ready for indexing. If a permit is directly available, the provided
      * ActionListener will be called on the calling thread. During relocation hand-off, permit acquisition can be delayed. The provided

diff --git a/server/src/main/java/org/opensearch/index/store/RemoteDirectory.java b/server/src/main/java/org/opensearch/index/store/RemoteDirectory.java
@@ -94,11 +94,12 @@ public IndexInput openInput(String name, IOContext context) throws IOException {
     }
 
     /**
-     * Closes the directory by deleting all the files in this directory
+     * Closes the remote directory. Currently, it is a no-op.
+     * If remote directory maintains a state in future, we need to clean it before closing the directory
      */
     @Override
     public void close() throws IOException {
-        blobContainer.delete();
+        // Do nothing
     }
 
     /**

diff --git a/server/src/main/java/org/opensearch/index/store/RemoteDirectoryFactory.java b/server/src/main/java/org/opensearch/index/store/RemoteDirectoryFactory.java
@@ -14,10 +14,13 @@
 import org.opensearch.index.IndexSettings;
 import org.opensearch.index.shard.ShardPath;
 import org.opensearch.plugins.IndexStorePlugin;
+import org.opensearch.repositories.RepositoriesService;
 import org.opensearch.repositories.Repository;
+import org.opensearch.repositories.RepositoryMissingException;
 import org.opensearch.repositories.blobstore.BlobStoreRepository;
 
 import java.io.IOException;
+import java.util.function.Supplier;
 
 /**
  * Factory for a remote store directory
@@ -26,12 +29,23 @@
  */
 public class RemoteDirectoryFactory implements IndexStorePlugin.RemoteDirectoryFactory {
 
+    private final Supplier<RepositoriesService> repositoriesService;
+
+    public RemoteDirectoryFactory(Supplier<RepositoriesService> repositoriesService) {
+        this.repositoriesService = repositoriesService;
+    }
+
     @Override
-    public Directory newDirectory(IndexSettings indexSettings, ShardPath path, Repository repository) throws IOException {
-        assert repository instanceof BlobStoreRepository : "repository should be instance of BlobStoreRepository";
-        BlobPath blobPath = new BlobPath();
-        blobPath = blobPath.add(indexSettings.getIndex().getName()).add(String.valueOf(path.getShardId().getId()));
-        BlobContainer blobContainer = ((BlobStoreRepository) repository).blobStore().blobContainer(blobPath);
-        return new RemoteDirectory(blobContainer);
+    public Directory newDirectory(String repositoryName, IndexSettings indexSettings, ShardPath path) throws IOException {
+        try (Repository repository = repositoriesService.get().repository(repositoryName)) {
+            assert repository instanceof BlobStoreRepository : "repository should be instance of BlobStoreRepository";
+            BlobPath blobPath = new BlobPath();
+            blobPath = blobPath.add(indexSettings.getIndex().getName()).add(String.valueOf(path.getShardId().getId()));
+            BlobContainer blobContainer = ((BlobStoreRepository) repository).blobStore().blobContainer(blobPath);
+            return new RemoteDirectory(blobContainer);
+        } catch (RepositoryMissingException e) {
+            throw new IllegalArgumentException("Repository should be created before creating index with remote_store enabled setting", e);
+        }
     }
+
 }
diff --git a/server/src/main/java/org/opensearch/indices/IndicesService.java b/server/src/main/java/org/opensearch/indices/IndicesService.java
@@ -132,6 +132,7 @@
 import org.opensearch.index.shard.IndexingOperationListener;
 import org.opensearch.index.shard.IndexingStats;
 import org.opensearch.index.shard.ShardId;
+import org.opensearch.index.store.RemoteDirectoryFactory;
 import org.opensearch.indices.breaker.CircuitBreakerService;
 import org.opensearch.indices.cluster.IndicesClusterStateService;
 import org.opensearch.indices.fielddata.cache.IndicesFieldDataCache;
@@ -265,6 +266,7 @@ public class IndicesService extends AbstractLifecycleComponent
     private final Set<Index> danglingIndicesToWrite = Sets.newConcurrentHashSet();
     private final boolean nodeWriteDanglingIndicesInfo;
     private final ValuesSourceRegistry valuesSourceRegistry;
+    private final RemoteDirectoryFactory remoteDirectoryFactory;
 
     @Override
     protected void doStart() {
@@ -292,7 +294,8 @@ public IndicesService(
         Collection<Function<IndexSettings, Optional<EngineFactory>>> engineFactoryProviders,
         Map<String, IndexStorePlugin.DirectoryFactory> directoryFactories,
         ValuesSourceRegistry valuesSourceRegistry,
-        Map<String, IndexStorePlugin.RecoveryStateFactory> recoveryStateFactories
+        Map<String, IndexStorePlugin.RecoveryStateFactory> recoveryStateFactories,
+        RemoteDirectoryFactory remoteDirectoryFactory
     ) {
         this.settings = settings;
         this.threadPool = threadPool;
@@ -386,6 +389,7 @@ protected void closeInternal() {
 
         this.allowExpensiveQueries = ALLOW_EXPENSIVE_QUERIES.get(clusterService.getSettings());
         clusterService.getClusterSettings().addSettingsUpdateConsumer(ALLOW_EXPENSIVE_QUERIES, this::setAllowExpensiveQueries);
+        this.remoteDirectoryFactory = remoteDirectoryFactory;
     }
 
     private static final String DANGLING_INDICES_UPDATE_THREAD_NAME = "DanglingIndices#updateTask";
@@ -745,7 +749,8 @@ private synchronized IndexService createIndexService(
             indicesFieldDataCache,
             namedWriteableRegistry,
             this::isIdFieldDataEnabled,
-            valuesSourceRegistry
+            valuesSourceRegistry,
+            remoteDirectoryFactory
         );
     }
 
@@ -859,13 +864,7 @@ public IndexShard createShard(
         IndexService indexService = indexService(shardRouting.index());
         assert indexService != null;
         RecoveryState recoveryState = indexService.createRecoveryState(shardRouting, targetNode, sourceNode);
-        IndexShard indexShard = indexService.createShard(
-            shardRouting,
-            globalCheckpointSyncer,
-            retentionLeaseSyncer,
-            checkpointPublisher,
-            repositoriesService
-        );
+        IndexShard indexShard = indexService.createShard(shardRouting, globalCheckpointSyncer, retentionLeaseSyncer, checkpointPublisher);
         indexShard.addShardFailureCallback(onShardFailure);
         indexShard.startRecovery(recoveryState, recoveryTargetService, recoveryListener, repositoriesService, mapping -> {
             assert recoveryState.getRecoverySource().getType() == RecoverySource.Type.LOCAL_SHARDS

diff --git a/server/src/main/java/org/opensearch/node/Node.java b/server/src/main/java/org/opensearch/node/Node.java
@@ -41,6 +41,7 @@
 import org.opensearch.indices.replication.SegmentReplicationSourceFactory;
 import org.opensearch.indices.replication.SegmentReplicationTargetService;
 import org.opensearch.indices.replication.SegmentReplicationSourceService;
+import org.opensearch.index.store.RemoteDirectoryFactory;
 import org.opensearch.watcher.ResourceWatcherService;
 import org.opensearch.Assertions;
 import org.opensearch.Build;
@@ -622,6 +623,8 @@ protected Node(
             rerouteServiceReference.set(rerouteService);
             clusterService.setRerouteService(rerouteService);
 
+            final RemoteDirectoryFactory remoteDirectoryFactory = new RemoteDirectoryFactory(repositoriesServiceReference::get);
+
             final IndicesService indicesService = new IndicesService(
                 settings,
                 pluginsService,
@@ -642,7 +645,8 @@ protected Node(
                 engineFactoryProviders,
                 indexStoreFactories,
                 searchModule.getValuesSourceRegistry(),
-                recoveryStateFactories
+                recoveryStateFactories,
+                remoteDirectoryFactory
             );
 
             final AliasValidator aliasValidator = new AliasValidator();

diff --git a/server/src/main/java/org/opensearch/plugins/IndexStorePlugin.java b/server/src/main/java/org/opensearch/plugins/IndexStorePlugin.java
@@ -39,7 +39,6 @@
 import org.opensearch.index.IndexSettings;
 import org.opensearch.index.shard.ShardPath;
 import org.opensearch.indices.recovery.RecoveryState;
-import org.opensearch.repositories.Repository;
 
 import java.io.IOException;
 import java.util.Collections;
@@ -74,13 +73,13 @@ interface DirectoryFactory {
     interface RemoteDirectoryFactory {
         /**
          * Creates a new remote directory per shard. This method is called once per shard on shard creation.
+         * @param repositoryName repository name
          * @param indexSettings the shards index settings
          * @param shardPath the path the shard is using
-         * @param repository to get the BlobContainer details
          * @return a new RemoteDirectory instance
          * @throws IOException if an IOException occurs while opening the directory
          */
-        Directory newDirectory(IndexSettings indexSettings, ShardPath shardPath, Repository repository) throws IOException;
+        Directory newDirectory(String repositoryName, IndexSettings indexSettings, ShardPath shardPath) throws IOException;
     }
 
     /**