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From "Allen Wittenauer (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-6729) Support maintenance mode for DN
Date Tue, 22 Jul 2014 20:40:38 GMT

    [ https://issues.apache.org/jira/browse/HDFS-6729?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14070852#comment-14070852
] 

Allen Wittenauer commented on HDFS-6729:
----------------------------------------

What types of operations are expected to be done while the DN is in maint mode?

> Support maintenance mode for DN
> -------------------------------
>
>                 Key: HDFS-6729
>                 URL: https://issues.apache.org/jira/browse/HDFS-6729
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: datanode
>    Affects Versions: 2.4.0
>            Reporter: Lei (Eddy) Xu
>
> We need a maintenance mode for a DN so that maintenance work can be carried out on the
DN without having to decommission it or the DN being marked as dead.



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