HDFS-16898. Make write lock fine-grain in method processCommandFromActor

apache · Jan 29, 2023 · 75f1c4c · 75f1c4c
1 parent 952d707
commit 75f1c4c
Showing 1 changed file with 6 additions and 1 deletion.
diff --git a/...ject/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/BPOfferService.java b/...ject/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/BPOfferService.java
@@ -679,15 +679,20 @@ boolean processCommandFromActor(DatanodeCommand cmd,
       actor.reRegister();
       return false;
     }
+    boolean isActiveActor;
     writeLock();
+    try {
+      isActiveActor = actor == bpServiceToActive;
+    } finally {
+      writeUnlock();
+    }
     try {
       if (actor == bpServiceToActive) {
         return processCommandFromActive(cmd, actor);
       } else {
         return processCommandFromStandby(cmd, actor);
       }
     } finally {
-      writeUnlock();
     }
   }