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https://issues.apache.org/jira/browse/HDFS-16837?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17631593#comment-17631593
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ASF GitHub Bot commented on HDFS-16837:
---------------------------------------

ZanderXu opened a new pull request, #5123:
URL: https://github.com/apache/hadoop/pull/5123

   ### Description of PR
   Jira: [HDFS-16837](https://issues.apache.org/jira/browse/HDFS-16837)
   
   ClientGSIContext should merge local and remote RouterFederatedState to get 
the max state id for each namespace.
   
   And the related code as bellows:
   ```
   @Override
   public synchronized void receiveResponseState(RpcResponseHeaderProto header) 
{
     if (header.hasRouterFederatedState()) {
       // BUG here
       routerFederatedState = header.getRouterFederatedState();
     } else {
       lastSeenStateId.accumulate(header.getStateId());
     }
   } 
   ```




> [RBF SBN] ClientGSIContext should merge RouterFederatedStates to get the max 
> state id for each namespace
> --------------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-16837
>                 URL: https://issues.apache.org/jira/browse/HDFS-16837
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: ZanderXu
>            Assignee: ZanderXu
>            Priority: Major
>
> ClientGSIContext should merge local and remote RouterFederatedState to get 
> the max state id for each namespace.
> And the related code as bellows:
> {code:java}
> @Override
> public synchronized void receiveResponseState(RpcResponseHeaderProto header) {
>   if (header.hasRouterFederatedState()) {
>     // BUG here
>     routerFederatedState = header.getRouterFederatedState();
>   } else {
>     lastSeenStateId.accumulate(header.getStateId());
>   }
> } {code}



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