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From "Chris Nauroth (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (HDFS-7604) Track and display failed DataNode storage locations in NameNode.
Date Tue, 13 Jan 2015 22:19:38 GMT

    [ https://issues.apache.org/jira/browse/HDFS-7604?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14276065#comment-14276065
] 

Chris Nauroth edited comment on HDFS-7604 at 1/13/15 10:19 PM:
---------------------------------------------------------------

[~sureshms], thank you for the feedback.

That's a good observation about sorting.  The table is not sortable directly in the web UI
right now, so I assume you mean something like copy-pasting into a text file or spreadsheet
where you can sort externally.  I've attached screenshot #2 showing both the old failed volume
counter and the new locations column.  I'll explore giving the table built-in sort functionality
too on the side.  That might be an easy thing with a jQuery plugin.

On the overview tab, we can add Total Failed Volumes to the Summary section.  I've attached
screenshot #3 to show that.  It's also a hyperlink that jumps to the Datanode Information
tab, just like the other Summary fields related to datanodes.


was (Author: cnauroth):
[~sureshms], thank you for the feedback.

That's a good observation about sorting.  The table is not sortable directly in the web UI
right now, so I assume you mean something like copy-pasting into a text file or spreadsheet
where you can sort externally.  I've attached screenshot #2 showing both the old failed volume
counter and the new locations column.  I'll explore giving the table-built-in sort functionality
too on the side.  That might be an easy thing with a jQuery plugin.

On the overview tab, we can add Total Failed Volumes to the Summary section.  I've attached
screenshot #3 to show that.  It's also a hyperlink that jumps to the Datanode Information
tab, just like the other Summary fields related to datanodes.

> 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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