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From "Zhe Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-7642) NameNode should periodically log DataNode decommissioning progress
Date Fri, 30 Sep 2016 20:18:20 GMT

    [ https://issues.apache.org/jira/browse/HDFS-7642?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15536954#comment-15536954

Zhe Zhang commented on HDFS-7642:

[~mackrorysd] Sure! Thanks for the interest. Unassigning myself now.

> NameNode should periodically log DataNode decommissioning progress
> ------------------------------------------------------------------
>                 Key: HDFS-7642
>                 URL: https://issues.apache.org/jira/browse/HDFS-7642
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>            Reporter: Zhe Zhang
>            Assignee: Zhe Zhang
>            Priority: Minor
> We've see a case where the decommissioning was stuck due to some files have more replicas
then DNs. HDFS-5662 fixes this particular issue but there are other use cases where the decommissioning
process might get stuck or slow down. Some monitoring / logging will help debugging those

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