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Posted to common-issues@hadoop.apache.org by "Ryan Hennig (JIRA)" <ji...@apache.org> on 2012/06/22 19:48:42 UTC
[jira] [Commented] (HADOOP-5726) Remove pre-emption from the
capacity scheduler code base
[ https://issues.apache.org/jira/browse/HADOOP-5726?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13399476#comment-13399476 ]
Ryan Hennig commented on HADOOP-5726:
-------------------------------------
Are there any plans to re-add pre-emption to the Capacity Scheduler? Or any best practices for using the CS in a way that allows high-priority, time-sensitive jobs to have adequate resources when needed, without sacrificing utilization at other times?
> Remove pre-emption from the capacity scheduler code base
> --------------------------------------------------------
>
> Key: HADOOP-5726
> URL: https://issues.apache.org/jira/browse/HADOOP-5726
> Project: Hadoop Common
> Issue Type: Improvement
> Reporter: Hemanth Yamijala
> Assignee: rahul k singh
> Fix For: 0.20.1
>
> Attachments: cs-without-preemption-23-1-2009.patch
>
>
> In an effort to simplify the code base, we would like to remove the pre-emption related code in the capacity scheduler. We would reintroduce this (possibly with some revisions to the original design) after a while. This will be an incompatible change. Any objections ?
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