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https://issues.apache.org/jira/browse/MAPREDUCE-2960?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13159604#comment-13159604
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Eli Collins commented on MAPREDUCE-2960:
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You're right - the last comment is bogus (the JT was on a RO fs).
The earlier ones however are from just TTs running on loop-back mounts with
faults injected, and the JT was fine. On the 1st it looks like the issue is
that the JobClient doesn't handle errors getting task output, or when TT
exceptions get plumbed back up to it. Though perhaps per MAPREDUCE-3473 this is
expected behavior given that *.failures.maxpercent defaults to 0.
> A single TT disk failure can cause the job to fail
> --------------------------------------------------
>
> Key: MAPREDUCE-2960
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-2960
> Project: Hadoop Map/Reduce
> Issue Type: Sub-task
> Components: tasktracker
> Affects Versions: 0.20.204.0
> Reporter: Eli Collins
>
> TaskInProgress#kill in the JT fails because TaskStatus#setFinishTimes fails
> because no start time was set. There's no start time because TaskTracker#run
> (DefaultTaskController#initializeJob) failed before it was set. The fix is to
> have TT#launchTask set the start time before it starts the task runner, this
> way there's a valid start time even if TT#run fails.
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