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From "rahul k singh (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-1030) Reduce tasks are getting starved in capacity scheduler
Date Tue, 06 Oct 2009 05:11:31 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-1030?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12762507#action_12762507

rahul k singh commented on MAPREDUCE-1030:

- Also, I think we should also check that the number of tasks assigned matches the number
Checking for size would result in breaking other testcase , as they check for map only or
reduce only , even if assignTasks returns both of them.
In this patch we are checking to make sure that what ever attempt user is expecting , if that
attempt is there in the tasks list.

> Reduce tasks are getting starved in capacity scheduler
> ------------------------------------------------------
>                 Key: MAPREDUCE-1030
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1030
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: contrib/capacity-sched
>    Affects Versions: 0.21.0
>            Reporter: rahul k singh
>            Assignee: rahul k singh
>            Priority: Blocker
>             Fix For: 0.21.0
>         Attachments: MAPREDUCE-1030-1.patch, MAPREDUCE-1030-2.patch.txt, MAPREDUCE-1030-3.patch,
MAPREDUCE-1030-4.patch, MAPREDUCE-1030-5.patch, MAPREDUCE-1030-6.patch
> reduce tasks are getting starved in capacity scheduler. 

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