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From "Nathan Marz (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-5330) Zombie tasks remain after jobs finish/fail/get killed
Date Thu, 26 Mar 2009 21:31:58 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-5330?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12689681#action_12689681
] 

Nathan Marz commented on HADOOP-5330:
-------------------------------------

Another note - these tasks are not taking up task slots in the cluster as jobs are still running
normally like I thought they were before 0.19.2. That may have been a separate issue which
I'm not seeing anymore. 

> Zombie tasks remain after jobs finish/fail/get killed
> -----------------------------------------------------
>
>                 Key: HADOOP-5330
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5330
>             Project: Hadoop Core
>          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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