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https://issues.apache.org/jira/browse/HADOOP-5726?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13399476#comment-13399476
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Ryan Hennig commented on HADOOP-5726:
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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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