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https://issues.apache.org/jira/browse/HADOOP-4112?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Amareshwari Sriramadasu updated HADOOP-4112:
--------------------------------------------
Fix Version/s: 0.19.0
Affects Version/s: 0.19.0
Status: Patch Available (was: Open)
> 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
>
>
> 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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