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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-3217) [HOD] Be less agressive when querying job status from resource manager.
Date Thu, 16 Oct 2008 21:18:44 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-3217?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12640326#action_12640326
] 

Hadoop QA commented on HADOOP-3217:
-----------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12392183/HADOOP-3217
  against trunk revision 705215.

    +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 Eclipse classpath. The patch retains Eclipse classpath integrity.

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

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

Test results: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/3476/testReport/
Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/3476/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/3476/artifact/trunk/build/test/checkstyle-errors.html
Console output: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/3476/console

This message is automatically generated.

> [HOD] Be less agressive when querying job status from resource manager.
> -----------------------------------------------------------------------
>
>                 Key: HADOOP-3217
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3217
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: contrib/hod
>    Affects Versions: 0.16.2
>            Reporter: Hemanth Yamijala
>            Assignee: Hemanth Yamijala
>            Priority: Blocker
>             Fix For: 0.17.3, 0.18.2, 0.19.0, 0.20.0
>
>         Attachments: HADOOP-3217, HADOOP-3217.patch.0.17, HADOOP-3217.patch.0.17, HADOOP-3217.patch.0.17
>
>
> After a job is submitted, HOD queries torque periodically until it finds the job to be
running / completed (due to error). The initial rate of query is once every 0.5 seconds for
20 times, and then once every 10 seconds. This is probably a tad too aggressive as we find
that Torque sometimes returns some odd errors under heavy load in the cluster (HADOOP-3216).
It may be better to query at a more relaxed rate. 

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