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From "Chris Nauroth (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-7604) Track and display failed DataNode storage locations in NameNode.
Date Fri, 16 Jan 2015 19:14:35 GMT

    [ https://issues.apache.org/jira/browse/HDFS-7604?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14280680#comment-14280680
] 

Chris Nauroth commented on HDFS-7604:
-------------------------------------

I'd like to defer the work of sorting by column in the web UI to a separate jira, in order
to simplify code review here for the failed volume reporting.  I filed issues HDFS-7636 for
the sorting.

> Track and display failed DataNode storage locations in NameNode.
> ----------------------------------------------------------------
>
>                 Key: HDFS-7604
>                 URL: https://issues.apache.org/jira/browse/HDFS-7604
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: datanode, namenode
>            Reporter: Chris Nauroth
>            Assignee: Chris Nauroth
>         Attachments: HDFS-7604-screenshot-1.png, HDFS-7604-screenshot-2.png, HDFS-7604-screenshot-3.png,
HDFS-7604.prototype.patch
>
>
> During heartbeats, the DataNode can report a list of its storage locations that have
been taken out of service due to failure (such as due to a bad disk or a permissions problem).
 The NameNode can track these failed storage locations and then report them in JMX and the
NameNode web UI.



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