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https://issues.apache.org/jira/browse/HDDS-1337?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16806964#comment-16806964
 ] 

Shashikant Banerjee commented on HDDS-1337:
-------------------------------------------

Thanks [~linyiqun] for the review. 
{code:java}
+        System.out.println("Pipeline exist " + raftServer.getPipelineIds()
+            .contains(pipeline.getId()));
+        /* GenericTestUtils.waitFor(
+            () -> (!raftServer.getPipelineIds()
+                .contains(pipeline.getId())), 500, 100 * 1000 );*/
{code}

The logging line has been removed as its not really required. The wait 
condition just ensures the pipeline has been removed on the datanode.

Rest of the review . comments and checkstyle issues have been addressed with 
patch v4.


> HandleGroupMismatchException in OzoneClient
> -------------------------------------------
>
>                 Key: HDDS-1337
>                 URL: https://issues.apache.org/jira/browse/HDDS-1337
>             Project: Hadoop Distributed Data Store
>          Issue Type: Improvement
>          Components: Ozone Client
>            Reporter: Shashikant Banerjee
>            Assignee: Shashikant Banerjee
>            Priority: Blocker
>              Labels: Blocker
>             Fix For: 0.4.0
>
>         Attachments: HDDS-1337.000.patch, HDDS-1337.001.patch, 
> HDDS-1337.002.patch, HDDS-1337.003.patch, HDDS-1337.004.patch
>
>
> If a pipeline gets destroyed in ozone client, ozone client may hit 
> GroupMismatchException from Ratis. In cases as such, client should exclude 
> the pipeline and retry write to a different block.



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