slfan1989 commented on code in PR #5443:
URL: https://github.com/apache/hadoop/pull/5443#discussion_r1122491264


##########
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/token/delegation/AbstractDelegationTokenSecretManager.java:
##########
@@ -531,9 +557,9 @@ protected DelegationTokenInformation checkToken(TokenIdent 
identifier)
     }
     return info;
   }
-  
+
   @Override
-  public synchronized byte[] retrievePassword(TokenIdent identifier)
+  public byte[] retrievePassword(TokenIdent identifier)

Review Comment:
   Why remove synchronized?



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