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https://issues.apache.org/jira/browse/HDFS-7934?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14496863#comment-14496863
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Hudson commented on HDFS-7934:
------------------------------

FAILURE: Integrated in Hadoop-trunk-Commit #7592 (See 
[https://builds.apache.org/job/Hadoop-trunk-Commit/7592/])
HDFS-7934. Update RollingUpgrade rollback documentation: should use 
bootstrapstandby for standby NN. Contributed by J. Andreina. (jing9: rev 
b172d03595d1591e7f542791224607d8c5fce3e2)
* hadoop-hdfs-project/hadoop-hdfs/src/site/xdoc/HdfsRollingUpgrade.xml
* hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt


> Update RollingUpgrade rollback documentation: should use bootstrapstandby for 
> standby NN
> ----------------------------------------------------------------------------------------
>
>                 Key: HDFS-7934
>                 URL: https://issues.apache.org/jira/browse/HDFS-7934
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: documentation
>    Affects Versions: 2.4.0
>            Reporter: J.Andreina
>            Assignee: J.Andreina
>            Priority: Critical
>             Fix For: 2.7.1
>
>         Attachments: HDFS-7934.1.patch, HDFS-7934.2.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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