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https://issues.apache.org/jira/browse/HDFS-7934?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14386281#comment-14386281
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Vinayakumar B commented on HDFS-7934:
-------------------------------------

Hi [~arpitagarwal], You have any opinions on this?

> During Rolling upgrade rollback ,standby namenode startup fails.
> ----------------------------------------------------------------
>
>                 Key: HDFS-7934
>                 URL: https://issues.apache.org/jira/browse/HDFS-7934
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: J.Andreina
>            Assignee: J.Andreina
>            Priority: Critical
>         Attachments: HDFS-7934.1.patch
>
>
> During Rolling upgrade rollback , standby namenode startup fails , while 
> loading edits and when  there is no local copy of edits created after upgrade 
> ( which is already been removed  by Active Namenode from journal manager and 
> from Active's local). 



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