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From "Andrew Wang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-8025) Addendum for HDFS-3087
Date Wed, 01 Apr 2015 20:01:54 GMT

    [ https://issues.apache.org/jira/browse/HDFS-8025?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14391332#comment-14391332
] 

Andrew Wang commented on HDFS-8025:
-----------------------------------

Hey Ming, thanks for working on this. Did you consider putting the new check in BlockManager#isNodeHealthyForDecommission?
This is a better home for this check (since this does relate to node health), and I think
it should be approximately as efficient since a node will have 0 blocks before its FBR.

It would also be good to add some logging for this case, since a perpetual complaint about
decom is the lack of visibility as to why a node is stuck.

> Addendum for HDFS-3087
> ----------------------
>
>                 Key: HDFS-8025
>                 URL: https://issues.apache.org/jira/browse/HDFS-8025
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: Ming Ma
>            Assignee: Ming Ma
>         Attachments: HDFS-8025.patch
>
>
> Per discussion with [~andrew.wang] on HDFS-7411, we should include HDFS-3087 and enhance
the unit test.



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