LiuGuH commented on code in PR #6029:
URL: https://github.com/apache/hadoop/pull/6029#discussion_r1327106224


##########
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/DataSetLockManager.java:
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@@ -256,7 +256,7 @@ private synchronized void putThreadName(String thread) {
     threadCountMap.putIfAbsent(thread, new TrackLog(thread));
   }
 
-  public void lockLeakCheck() {
+  public synchronized void lockLeakCheck() {

Review Comment:
   Thanks for review.   It is better to add synchronized because  it not , it  
is maybe lost some error log.  



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