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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-734) java.util.ConcurrentModificationException observed in unreserving slots for HiRam Jobs
Date Sun, 12 Jul 2009 15:57:15 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-734?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12730107#action_12730107
] 

Hudson commented on MAPREDUCE-734:
----------------------------------

Integrated in Hadoop-Mapreduce-trunk #20 (See [http://hudson.zones.apache.org/hudson/job/Hadoop-Mapreduce-trunk/20/])
    

> java.util.ConcurrentModificationException observed in unreserving slots for HiRam Jobs
> --------------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-734
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-734
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: contrib/capacity-sched
>    Affects Versions: 0.21.0
>            Reporter: Karam Singh
>            Assignee: Arun C Murthy
>             Fix For: 0.21.0
>
>         Attachments: MAPREDUCE-734-1.patch, MAPREDUCE-734-2.patch, MAPREDUCE-734-20.patch,
MAPREDUCE-734-ydist.patch, MAPREDUCE-734_0_20090708.patch, MAPREDUCE-734_0_20090708_yhadoop20.patch
>
>
> Ran jobs out which 3 were HiRAM, the job were not removed from scheduler queue even after
they successfully completed
> hadoop queue -info queue -showJobs displays somwthing like -:
> job_200907080724_0031   2       1247059146868   username  NORMAL  0 running map tasks
using 0 map slots. 0 additional slots reserved. 0 running reduce tasks using 0 reduce slots.
60 additional slots reserved.
> job_200907080724_0030   2       1247059146972   username  NORMAL  0 running map tasks
using 0 map slots. 0 additional slots reserved. 0 running reduce tasks using 0 reduce slots.
60 additional slots reserved.
> But it does not block anything, but seems like zombie process of system
> Jobtracker log show java.util.ConcurrentModificationException

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