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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-8110) Remove unsupported 'hdfs namenode -rollingUpgrade downgrade' from document
Date Sat, 25 Apr 2015 11:35:59 GMT

    [ https://issues.apache.org/jira/browse/HDFS-8110?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14512466#comment-14512466
] 

Hudson commented on HDFS-8110:
------------------------------

FAILURE: Integrated in Hadoop-Hdfs-trunk-Java8 #165 (See [https://builds.apache.org/job/Hadoop-Hdfs-trunk-Java8/165/])
HDFS-8110. Remove unsupported 'hdfs namenode -rollingUpgrade downgrade' from document. Contributed
by J.Andreina. (aajisaka: rev 91b97c21c9271629dae7515a6a58c35d13b777ff)
* hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
* hadoop-hdfs-project/hadoop-hdfs/src/site/xdoc/HdfsRollingUpgrade.xml


> Remove unsupported 'hdfs namenode -rollingUpgrade downgrade' from document
> --------------------------------------------------------------------------
>
>                 Key: HDFS-8110
>                 URL: https://issues.apache.org/jira/browse/HDFS-8110
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: documentation
>            Reporter: J.Andreina
>            Assignee: J.Andreina
>            Priority: Minor
>             Fix For: 3.0.0
>
>         Attachments: HDFS-8110.1.patch
>
>
> Support for "-rollingUpgrade downgrade" is been removed as part of HDFS-7302.
> Corresponding information should be removed from document also.
> {noformat}
> Downgrade with Downtime
> Administrator may choose to first shutdown the cluster and then downgrade it. The following
are the steps:
> Shutdown all NNs and DNs.
> Restore the pre-upgrade release in all machines.
> Start NNs with the "-rollingUpgrade downgrade" option.
> Start DNs normally.
> {noformat}



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