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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-972) distcp can timeout during rename operation to s3
Date Wed, 14 Oct 2009 22:58:31 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-972?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12765801#action_12765801
] 

Hadoop QA commented on MAPREDUCE-972:
-------------------------------------

+1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12422133/MAPREDUCE-972.5.patch
  against trunk revision 825083.

    +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 passed core unit tests.

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

Test results: http://hudson.zones.apache.org/hudson/job/Mapreduce-Patch-h3.grid.sp2.yahoo.net/73/testReport/
Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Mapreduce-Patch-h3.grid.sp2.yahoo.net/73/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results: http://hudson.zones.apache.org/hudson/job/Mapreduce-Patch-h3.grid.sp2.yahoo.net/73/artifact/trunk/build/test/checkstyle-errors.html
Console output: http://hudson.zones.apache.org/hudson/job/Mapreduce-Patch-h3.grid.sp2.yahoo.net/73/console

This message is automatically generated.

> distcp can timeout during rename operation to s3
> ------------------------------------------------
>
>                 Key: MAPREDUCE-972
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-972
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: distcp
>    Affects Versions: 0.20.1
>            Reporter: Aaron Kimball
>            Assignee: Aaron Kimball
>         Attachments: MAPREDUCE-972.2.patch, MAPREDUCE-972.3.patch, MAPREDUCE-972.4.patch,
MAPREDUCE-972.5.patch, MAPREDUCE-972.patch
>
>
> rename() in S3 is implemented as copy + delete. The S3 copy operation can perform very
slowly, which may cause task timeout.

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