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From "Kai Sasaki (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-7302) namenode -rollingUpgrade downgrade may finalize a rolling upgrade
Date Sat, 14 Feb 2015 04:10:11 GMT

    [ https://issues.apache.org/jira/browse/HDFS-7302?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14321218#comment-14321218
] 

Kai Sasaki commented on HDFS-7302:
----------------------------------

[~szetszwo] Hi Nicholas. I want to work on this ticket. Can you assign this issue to me? Thank
you.

> namenode -rollingUpgrade downgrade may finalize a rolling upgrade
> -----------------------------------------------------------------
>
>                 Key: HDFS-7302
>                 URL: https://issues.apache.org/jira/browse/HDFS-7302
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: namenode
>            Reporter: Tsz Wo Nicholas Sze
>            Assignee: Tsz Wo Nicholas Sze
>
> The namenode startup option "-rollingUpgrade downgrade" is originally designed for downgrading
cluster.  However, running "namenode -rollingUpgrade downgrade" with the new software could
result in finalizing the ongoing rolling upgrade.



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