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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-4246) Reduce task copy errors may not kill it eventually
Date Wed, 01 Oct 2008 01:09:44 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-4246?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12635923#action_12635923

Hadoop QA commented on HADOOP-4246:

-1 overall.  Here are the results of testing the latest attachment 
  against trunk revision 700589.

    +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/3406/testReport/
Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/3406/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/3406/artifact/trunk/build/test/checkstyle-errors.html
Console output: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/3406/console

This message is automatically generated.

> Reduce task copy errors may not kill it eventually
> --------------------------------------------------
>                 Key: HADOOP-4246
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4246
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: mapred
>    Affects Versions: 0.19.0
>            Reporter: Amareshwari Sriramadasu
>            Assignee: Amareshwari Sriramadasu
>            Priority: Blocker
>             Fix For: 0.19.0
>         Attachments: patch-4246.txt, patch-4246.txt, patch-4246.txt
> maxFetchRetriesPerMap in reduce task can be zero some times (when maxMapRunTime is less
than 4 seconds or mapred.reduce.copy.backoff is less than 4). This will not count reduce task
copy errors to kill it eventually.

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