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https://issues.apache.org/jira/browse/HADOOP-4880?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12656931#action_12656931
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Amar Kamat commented on HADOOP-4880:
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HADOOP-4220 works on the test optimizations.

> Improvements to TestJobTrackerRestart
> -------------------------------------
>
>                 Key: HADOOP-4880
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4880
>             Project: Hadoop Core
>          Issue Type: Improvement
>          Components: mapred, test
>            Reporter: Arun C Murthy
>
> TestJobTrackerRestart could use the following improvements:
> # Remove the one minute 'wait' - this is really bad for test-cases
> # It assumes that a particular ordering of job-scheduling based on current 
> behaviour of JobQueueTaskScheduler assigning a single task per heartbeat (pre 
> HADOOP-3136) and thus a particular job completion order, which is incorrect 
> and won't work with all schedulers.

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