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https://issues.apache.org/jira/browse/MAPREDUCE-1233?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13230621#comment-13230621
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Koji Noguchi commented on MAPREDUCE-1233:
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This seems to be in 1.X/0.20.2XX already?
However, I'm not sure how the patch is related to "Waiting" metrics. This only
touches failedMap&failedReduce metrics.
> Incorrect Waiting maps/reduces in Jobtracker metrics
> -----------------------------------------------------
>
> Key: MAPREDUCE-1233
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-1233
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: jobtracker
> Reporter: V.Karthikeyan
> Assignee: Luke Lu
> Attachments: mr-1233-y20s-v1.patch, mr-1233-y20s-v2.patch
>
>
> Waiting Maps/Reduces are incorrect in Jobtracker metrics when a job fails.
> when a map/reduce fails(during job failure), waiting maps/reduce got
> incremented and doesn't get decremented even after job cleanup.
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