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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-3103) [HOD] Hadoop.tmp.dir should not be set to cluster directory
Date Thu, 27 Mar 2008 17:27:28 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-3103?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12582744#action_12582744
] 

Hadoop QA commented on HADOOP-3103:
-----------------------------------

-1 overall.  Here are the results of testing the latest attachment 
http://issues.apache.org/jira/secure/attachment/12378704/HADOOP-3103.1.for.17
against trunk revision 619744.

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

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

    javadoc -1.  The javadoc tool appears to have generated 1 warning messages.

    javac +1.  The applied patch does not generate any new javac compiler warnings.

    release audit +1.  The applied patch does not generate any new release audit warnings.

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

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

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

Test results: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2078/testReport/
Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2078/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2078/artifact/trunk/build/test/checkstyle-errors.html
Console output: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2078/console

This message is automatically generated.

> [HOD] Hadoop.tmp.dir should not be set to cluster directory
> -----------------------------------------------------------
>
>                 Key: HADOOP-3103
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3103
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: contrib/hod
>            Reporter: Vinod Kumar Vavilapalli
>            Assignee: Vinod Kumar Vavilapalli
>            Priority: Blocker
>             Fix For: 0.16.2
>
>         Attachments: HADOOP-3103, HADOOP-3103.1.for.16, HADOOP-3103.1.for.17, HADOOP-3103.for.16,
HADOOP-3103.for.17
>
>
> Currently HOD generates  hadoop.tmp.dir pointing to the cluster directory(hod.clusterdir),
which users typically create in their home directories. This hadoop.tmp.dir is used on the
client side when a jar is run(org/apache/hadoop/util/RunJar.java). The user home directories
might be NFS mounted in some environments, which might result in a hit, for example when running
a jar.
> So, HOD *should not* generate hadoop.tmp.dir pointing to cluster directory. Instead,
it should use hod.temp-dir, which *is* the location that dfs.client.buffer.dir uses to alleviate
any such NFS hit problems. Further, though currently hadoop.tmp.dir is not used on hadoop
daemons side, it would be good if HOD generates it on daemons side too, and thus preclude
any related problems in future.

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