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https://issues.apache.org/jira/browse/MAPREDUCE-3473?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13159387#comment-13159387
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Eli Collins commented on MAPREDUCE-3473:
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Cool, so we should re-purpose this jira for defaulting *failures.maxpercent to
non-zero values? What value do people use in practice?
> Task failures shouldn't result in Job failures
> -----------------------------------------------
>
> Key: MAPREDUCE-3473
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-3473
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: tasktracker
> Affects Versions: 0.20.205.0, 0.23.0
> Reporter: Eli Collins
>
> Currently some task failures may result in job failures. Eg a local TT disk
> failure seen in TaskLauncher#run, TaskRunner#run, MapTask#run is visible to
> and can hang the JobClient, causing the job to fail. Job execution should
> always be able to survive a task failure if there are sufficient resources.
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