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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HDFS-1161) Make DN minimum valid volumes configurable
Date Fri, 28 May 2010 05:13:39 GMT

    [ https://issues.apache.org/jira/browse/HDFS-1161?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12872850#action_12872850
] 

Hadoop QA commented on HDFS-1161:
---------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12445707/hdfs-1161-6.patch
  against trunk revision 949043.

    +1 @author.  The patch does not contain any @author tags.

    +1 tests included.  The patch appears to include 3 new or modified tests.

    +1 javadoc.  The javadoc tool did not generate any warning messages.

    +1 javac.  The applied patch does not increase the total number of javac compiler warnings.

    +1 findbugs.  The patch does not introduce any new Findbugs warnings.

    +1 release audit.  The applied patch does not increase the total number of release audit
warnings.

    -1 core tests.  The patch failed core unit tests.

    -1 contrib tests.  The patch failed contrib unit tests.

Test results: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/383/testReport/
Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/383/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/383/artifact/trunk/build/test/checkstyle-errors.html
Console output: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/383/console

This message is automatically generated.

> Make DN minimum valid volumes configurable
> ------------------------------------------
>
>                 Key: HDFS-1161
>                 URL: https://issues.apache.org/jira/browse/HDFS-1161
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: data-node
>    Affects Versions: 0.21.0, 0.22.0
>            Reporter: Eli Collins
>            Assignee: Eli Collins
>             Fix For: 0.21.0, 0.22.0
>
>         Attachments: hdfs-1161-1.patch, hdfs-1161-2.patch, hdfs-1161-3.patch, hdfs-1161-4.patch,
hdfs-1161-5.patch, hdfs-1161-6.patch
>
>
> The minimum number of non-faulty volumes to keep the DN active is hard-coded to 1.  It
would be useful to allow users to configure this value so the DN can be taken offline when
eg half of its disks fail, otherwise it doesn't get reported until it's down to it's final
disk and suffering degraded performance.

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