[
https://issues.apache.org/jira/browse/YARN-3547?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14514170#comment-14514170
]
Jason Lowe commented on YARN-3547:
----------------------------------
This looks like a duplicate of YARN-2176. There is some discussion in that
JIRA on how to approach implementing it for both the capacity scheduler and
fair scheduler. At first glance I'm not sure the proposed patch in this JIRA
would work, as I believe requests can be present with #containers=0 which would
foil the sched.getAppSchedulingInfo().getAllResourceRequests().size() != 0
check.
> Apps that have no resource demand should not participate scheduling
> -------------------------------------------------------------------
>
> Key: YARN-3547
> URL: https://issues.apache.org/jira/browse/YARN-3547
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: scheduler
> Reporter: Xianyin Xin
> Attachments: YARN-3547.001.patch
>
>
> At present, all of the 'running' apps participate the scheduling process,
> however, most of them may have no resource demand on a production cluster, as
> the app's status is running other than waiting for resource at the most of
> the app's lifetime. It's not a wise way we sort all the 'running' apps and
> try to fulfill them, especially on a large-scale cluster which has heavy
> scheduling load.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
