diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/BPServiceActor.java b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/BPServiceActor.java
index 462b9df3c9c81..da30d057966c8 100755
--- a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/BPServiceActor.java
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/BPServiceActor.java
@@ -1487,8 +1487,10 @@ void enqueue(List<DatanodeCommand> cmds) throws InterruptedException {
     }
 
     void enqueue(DatanodeCommand[] cmds) throws InterruptedException {
-      queue.put(() -> processCommand(cmds));
-      dn.getMetrics().incrActorCmdQueueLength(1);
+      if (cmds.length != 0) {
+        queue.put(() -> processCommand(cmds));
+        dn.getMetrics().incrActorCmdQueueLength(1);
+      }
     }
   }