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https://issues.apache.org/jira/browse/HADOOP-4558?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12652288#action_12652288
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Sreekanth Ramakrishnan commented on HADOOP-4558:
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Can you please remove the assignment of pending tasks in
TaskSchedulingMgr.jobAdded(), the patch does not seem to apply cleanly on
trunk, can you please check the same?
The rest of the patch looks fine.
> Scheduler fails to reclaim capacity if Jobs are submitted to queue one after
> the other
> --------------------------------------------------------------------------------------
>
> Key: HADOOP-4558
> URL: https://issues.apache.org/jira/browse/HADOOP-4558
> Project: Hadoop Core
> Issue Type: Bug
> Components: contrib/capacity-sched
> Affects Versions: 0.19.0
> Environment: Cluster Capacity Maps=Reduces =210 each
> Two Queues:
> Q1: default, GC (%) =40, GC=84 (Maps and Reduces each). Reclaim time = 3
> mins.
> Q2: test_q1, GC (%) =60, GC=126 (Maps and Reduces each) Reclaim time = 2 mins
> Reporter: Karam Singh
> Assignee: Amar Kamat
> Attachments: 4558.1.patch, HADOOP-4558-v1.4.patch
>
>
> Scheduler fails to reclaim capacity if Jobs are submitted to queue one after
> the other.
> First job submitted with tasks equal to cluster's M/R Capacity
> Second is submitted to different queue when all tasks of First Job are
> running, scheduler fails to reclaim capacity for second job.
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