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https://issues.apache.org/jira/browse/MAPREDUCE-31?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Harsh J resolved MAPREDUCE-31.
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Resolution: Not A Problem
This isn't a problem anymore on trunk. The JT has gone away and I do not think
the MR2 components suffer from the same.
Besides, I've not seen this happen on branch-1 either, but I was not looking
very close.
> Have a better shutdown and cleanup mechanism in JobTracker
> ----------------------------------------------------------
>
> Key: MAPREDUCE-31
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-31
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Reporter: Amar Kamat
>
> The {{main()}} of JobTracker waits for {{offerSerice()}} to complete.
> {{offerService()}} does a {{Thread.join()}} on {{interTrackerServer}}.
> {{JobTracker.close()}} stops {{interTrackerServer}} pretty early and hence
> there is a fair chance of JobTracker exiting before other threads are stopped
> _properly_.
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