vinayakumarb commented on code in PR #6809:
URL: https://github.com/apache/hadoop/pull/6809#discussion_r1603333870


##########
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/LeaseManager.java:
##########
@@ -626,7 +626,8 @@ private synchronized boolean checkLeases(Collection<Lease> 
leasesToCheck) {
             }
           }
           // If a lease recovery happened, we need to sync later.

Review Comment:
   @Hexiaoqiao Its perfectly fine if concurrently other write operations also 
call`logSync()`. This transaction also will get included in the logSync() 
called by other threads. Its true for vice versa as well.
   
   @ThinkerLei I wanted to make the if-else condition simple.
   ```
   boolean completed=fsn.internalReleaseLease();
   if (!needSync)) { 
       needSync = true;
   } 
   ```



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