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https://issues.apache.org/jira/browse/TEZ-1742?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14202235#comment-14202235
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Bikas Saha edited comment on TEZ-1742 at 11/7/14 4:54 PM:
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commit 5df90046c494352b55dbffe2fbd6810516d486e7
Author: Bikas Saha <[email protected]>
Date: Fri Nov 7 08:39:34 2014 -0800
TEZ-1742. Improve response time of internal preemption (bikas)
commit 8492f10757f9134016f8149f2cc54061d8ddbb0a
Author: Bikas Saha <[email protected]>
Date: Fri Nov 7 08:52:53 2014 -0800
TEZ-1742. Addendum to fix CHANGES.txt
was (Author: bikassaha):
commit 5df90046c494352b55dbffe2fbd6810516d486e7
Author: Bikas Saha <[email protected]>
Date: Fri Nov 7 08:39:34 2014 -0800
TEZ-1742. Improve response time of internal preemption (bikas)
> Improve response time of internal preemption
> --------------------------------------------
>
> Key: TEZ-1742
> URL: https://issues.apache.org/jira/browse/TEZ-1742
> Project: Apache Tez
> Issue Type: Task
> Reporter: Bikas Saha
> Assignee: Bikas Saha
> Fix For: 0.5.3
>
> Attachments: TEZ-1742.1.patch, TEZ-1742.2.patch, TEZ-1742.3.patch,
> TEZ-1742.4.patch
>
>
> Tez YARN Task Scheduler currently preempts 1 running task at a time when a
> higher priority task is waiting and there are no available resources. When a
> large number of higher priority tasks are pending then it can take a long
> time to preempt the required number of lower priority tasks.
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