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https://issues.apache.org/jira/browse/HADOOP-5738?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12703971#action_12703971
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Sreekanth Ramakrishnan commented on HADOOP-5738:
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The waiting_tasks were kept for compatibility reasons. Should we just remove it
or is there any way we can deprecate the metrics field?
> Split waiting tasks field in JobTracker metrics to individual tasks
> -------------------------------------------------------------------
>
> Key: HADOOP-5738
> URL: https://issues.apache.org/jira/browse/HADOOP-5738
> Project: Hadoop Core
> Issue Type: Bug
> Components: mapred, metrics
> Reporter: Sreekanth Ramakrishnan
> Assignee: Sreekanth Ramakrishnan
> Attachments: HADOOP-5738-1.patch
>
>
> Currently, job tracker metrics reports waiting tasks as a single field in
> metrics. It would be better if we can split waiting tasks into maps and
> reduces.
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