Merge pull request #4617 from eval-exec/exec/early-return-init-load-u…

…nverified

Early return init_load_unverified thread when no unverified blocks found after tip

chain/src/init_load_unverified.rs

@@ -93,6 +93,15 @@ impl InitLoadUnverified {
             let unverified_hashes: Vec<packed::Byte32> =
                 self.find_unverified_block_hashes(check_unverified_number);
 
+            if check_unverified_number > tip_number && unverified_hashes.is_empty() {
+                info!(
+                    "no unverified blocks found after tip, current tip: {}-{}",
+                    tip_number,
+                    self.shared.snapshot().tip_hash()
+                );
+                return;
+            }
+
             for unverified_hash in unverified_hashes {
                 f(&unverified_hash);
             }

test/src/specs/sync/sync_churn.rs

@@ -60,6 +60,11 @@ impl Spec for SyncChurn {
                 if too_many_blocks || restart_stopped_rx.try_recv().is_ok() {
                     break;
                 }
+                info!(
+                    "mining_node {}, tip: {}",
+                    mining_node.node_id(),
+                    mining_node.get_tip_block_number()
+                );
                 waiting_for_sync(&mining_nodes);
             }
         });