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