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From "Kihwal Lee (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-7411) Refactor and improve decommissioning logic into DecommissionManager
Date Wed, 04 Feb 2015 22:59:35 GMT

    [ https://issues.apache.org/jira/browse/HDFS-7411?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14306167#comment-14306167
] 

Kihwal Lee commented on HDFS-7411:
----------------------------------

HDFS-7735 is also being worked on.  If we can convince our selves that the performance benefit
of this change is great, it will be worth while to spend time to find a way to introduce this
without incompatibility.  The performance here can be viewed in two angles: 1) impact on name
node and 2) decommissioning speed.  I will also try to review the patch.  I think everyone
agrees that we need to improve decommissioning.

> Refactor and improve decommissioning logic into DecommissionManager
> -------------------------------------------------------------------
>
>                 Key: HDFS-7411
>                 URL: https://issues.apache.org/jira/browse/HDFS-7411
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>    Affects Versions: 2.5.1
>            Reporter: Andrew Wang
>            Assignee: Andrew Wang
>         Attachments: hdfs-7411.001.patch, hdfs-7411.002.patch, hdfs-7411.003.patch, hdfs-7411.004.patch,
hdfs-7411.005.patch, hdfs-7411.006.patch, hdfs-7411.007.patch, hdfs-7411.008.patch, hdfs-7411.009.patch,
hdfs-7411.010.patch
>
>
> Would be nice to split out decommission logic from DatanodeManager to DecommissionManager.



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