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https://issues.apache.org/jira/browse/MAPREDUCE-790?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Arun C Murthy resolved MAPREDUCE-790.
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Resolution: Duplicate
See HADOOP-4305 for details on global blacklisting of tasktrackers.
> TaskTracker blacklisted by one job should be blacklisted for all other jobs
> in the queue
> ----------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-790
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-790
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: jobtracker
> Affects Versions: 0.20.1
> Reporter: Qi Liu
>
> Once a task tracker is blacklisted by one job, it is still being used by all
> other jobs in the queue. A blacklisted task tracker could be a signal of
> marginal node, and thus it should be blacklisted for all jobs at least
> temporarily. Also, even if one task tracker has been blacklisted globally due
> to too many failures, the blacklists of the jobs in the queue are not
> affected, and thus will continue to use the bad task tracker. This could
> result job failure.
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