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From "Amar Kamat (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-5282) Running tasks on lost trackers are incorrectly logging the attempt and task failures
Date Fri, 20 Feb 2009 06:11:02 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-5282?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Amar Kamat updated HADOOP-5282:
-------------------------------

    Attachment: HADOOP-5282-v1.1.patch

Incorporating Hemanth's comments. Result of _test-patch_ is as follows :
{code}
[exec] -1 overall.  
     [exec] 
     [exec]     +1 @author.  The patch does not contain any @author tags.
     [exec] 
     [exec]     -1 tests included.  The patch doesn't appear to include any new or modified
tests.
     [exec]                         Please justify why no tests are needed for this patch.
     [exec] 
     [exec]     +1 javadoc.  The javadoc tool did not generate any warning messages.
     [exec] 
     [exec]     +1 javac.  The applied patch does not increase the total number of javac compiler
warnings.
     [exec] 
     [exec]     +1 findbugs.  The patch does not introduce any new Findbugs warnings.
     [exec] 
     [exec]     +1 Eclipse classpath. The patch retains Eclipse classpath integrity.
     [exec] 
     [exec]     +1 release audit.  The applied patch does not increase the total number of
release audit warnings.
{code}
Tests in HADOOP-4191 should validate this fix.

> Running tasks on lost trackers are incorrectly logging the attempt and task failures
> ------------------------------------------------------------------------------------
>
>                 Key: HADOOP-5282
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5282
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: mapred
>    Affects Versions: 0.20.0
>            Reporter: Amar Kamat
>            Assignee: Amar Kamat
>            Priority: Blocker
>             Fix For: 0.20.0
>
>         Attachments: HADOOP-5282-v1.0.patch, HADOOP-5282-v1.1.patch
>
>
> If a running attempt is lost on a tracker, a attempt-level cleanup with the same attempt-id
is launched for it. In such cases the events are not logged correctly and instead of logging
> {code}
> Task Reduce Start
> Attempt Reduce Start
> Attempt Reduce Killed 
> Task reduce Killed
> {code}
> it logs
> {code}
> Task Reduce Start
> Task Reduce Failed
> Attempt Reduce Start
> Attempt Reduce Killed 
> {code}

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