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https://issues.apache.org/jira/browse/MAPREDUCE-148?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Allen Wittenauer resolved MAPREDUCE-148.
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Resolution: Incomplete
Closing as stale.
> A successful tip can fail unnecessarily
> ---------------------------------------
>
> Key: MAPREDUCE-148
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-148
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Reporter: Amar Kamat
>
> Consider the following sequence of events
> 1. tip _t_ has 5 attempts, _attempt_0-4_. Lets assume that
> _attempt_0,attempt_1_ and _attempt_2_ have failed. _attempt_3_ and
> _attempt_4_ are running.
> 2. _attempt_3_ runs on tracker _t1_ and attempt_4 runs on tracker _t2_
> 3. _attempt_3_ reports success and the tip _t_ is marked successful
> 4. _attempt_4_ reports failure and the tip _t_ is failed based on the call to
> _TaskInProgress.incompleteSubTask()_.
> Here the tip _t_ is failed unnecessarily.
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