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From "Sharad Agarwal (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-1158) running_maps is not decremented when the tasks of a job is killed/failed
Date Wed, 28 Oct 2009 09:51:59 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-1158?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12770863#action_12770863
] 

Sharad Agarwal commented on MAPREDUCE-1158:
-------------------------------------------

test patch passed:
{code}
 +1 overall.
     [exec]
     [exec]     +1 @author.  The patch does not contain any @author tags.
     [exec]
     [exec]     +1 tests included.  The patch appears to include 3 new or modified tests.
     [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 release audit.  The applied patch does not increase the total number of
release audit warnings.
{code}

> running_maps is not decremented when the tasks of a job is killed/failed 
> -------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-1158
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1158
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: jobtracker
>    Affects Versions: 0.22.0
>            Reporter: Ramya R
>            Assignee: Sharad Agarwal
>             Fix For: 0.22.0
>
>         Attachments: 1158.patch
>
>
> running_maps counter in the metrics is not decremented when the tasks of a job is killed/failed.
Below are the exact steps to reproduce the problem:
> * Initially running_maps=0
> * Submit a job with 5 maps. running_maps is set to 5
> * Kill 2 attempts of a map task
> * Fail 4 attempts of the same map task so that the job is finally marked killed.
> * Once the job is marked killed, running_maps is set to 3 and not 0. 

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