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From "Tsz Wo (Nicholas), SZE (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-4112) Got ArrayOutOfBound exception while analyzing the job history
Date Fri, 12 Sep 2008 22:19:44 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-4112?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12630693#action_12630693

Tsz Wo (Nicholas), SZE commented on HADOOP-4112:

> All core tests and contrib tests passed on my mahcine except TestHighRAMJobs.

Is there any reason that TestHighRAMJobs fails?  It also failed in my machine.

> Got ArrayOutOfBound exception while analyzing the job history
> -------------------------------------------------------------
>                 Key: HADOOP-4112
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4112
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: mapred
>    Affects Versions: 0.19.0
>            Reporter: Amar Kamat
>            Assignee: Amareshwari Sriramadasu
>             Fix For: 0.19.0
>         Attachments: patch-4112.txt, patch-4112.txt, patch-4112.txt, patch-4112.txt
> HADOOP-3150 introduced 2 new type of tasks called the cleanup tasks. These are logged
to history either as map tasks or reduce tasks. The number of maps/reducers is also logged
to history. Since the number of maps will be less than the total number of map tasks logged
to history (actual num maps + cleanup tasks), I think thats the reason for this exception.
The important question is to investigate the effect of HADOOP-3150 on job history and code
related to it.

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