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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-4060) [HOD] Make HOD to roll log files on the client
Date Fri, 05 Sep 2008 11:05:44 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-4060?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12628615#action_12628615
] 

Hadoop QA commented on HADOOP-4060:
-----------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12389551/HOD-LOG-ROTATION.1.txt
  against trunk revision 692335.

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

    -1 tests included.  The patch doesn't appear to include any new or modified tests.
                        Please justify why no tests are needed for this patch.

    +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 core tests.  The patch failed core unit tests.

    +1 contrib tests.  The patch passed contrib unit tests.

Test results: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/3185/testReport/
Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/3185/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/3185/artifact/trunk/build/test/checkstyle-errors.html
Console output: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/3185/console

This message is automatically generated.

> [HOD] Make HOD to roll log files on the client 
> -----------------------------------------------
>
>                 Key: HADOOP-4060
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4060
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: contrib/hod
>            Reporter: Hemanth Yamijala
>            Assignee: Vinod K V
>            Priority: Blocker
>             Fix For: 0.18.1, 0.19.0
>
>         Attachments: HOD-LOG-ROTATION.1.txt, HOD-LOG-ROTATION.txt
>
>
> Currently HOD writes a log file on the client in the cluster directory, named hod-<username>.log.
This file is appended to for each run of hod allocation that runs on the same cluster directory.
Thus, the file can become quite large - particularly if the job is queued for a long time.
If there are problems with the HOD client subsequently, this could result in stale file handles
pointing to this large file, and cause disk space to fill up. Another problem is that a large
log file is usually unusable for a user.

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