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https://issues.apache.org/jira/browse/HADOOP-5330?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Nathan Marz resolved HADOOP-5330.
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Resolution: Invalid
As it turns out, this was caused by an application problem. We were running
embedded Solr instances in the tasks that were preventing the process from
exiting. The fix was to close the Solr instances at task completion.
> Zombie tasks remain after jobs finish/fail/get killed
> -----------------------------------------------------
>
> Key: HADOOP-5330
> URL: https://issues.apache.org/jira/browse/HADOOP-5330
> Project: Hadoop Common
> Issue Type: Bug
> Affects Versions: 0.19.1
> Reporter: Nathan Marz
>
> I'm seeing a lot of "task attempts" around our hadoop cluster for jobs that
> are no longer around. The attempts seem to be "hung", as they sit there
> forever. Additionally, they seem to take up map and reduce slots in the
> cluster unless MapReduce is restarted. This causes real jobs to be unable to
> utilize the whole cluster.
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