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daemon commented on YARN-6769: ------------------------------ [~yufeigu], Thanks yufei. I really name is zhouyunfan. Thank you so mush for doing so mush for me! > Put the no demand queue after the most in FairSharePolicy#compare > ----------------------------------------------------------------- > > Key: YARN-6769 > URL: https://issues.apache.org/jira/browse/YARN-6769 > Project: Hadoop YARN > Issue Type: Bug > Components: fairscheduler > Affects Versions: 2.7.2 > Reporter: daemon > Assignee: daemon > Priority: Minor > Fix For: 2.9.0 > > Attachments: YARN-6769.001.patch, YARN-6769.002.patch, > YARN-6769.003.patch, YARN-6769.004.patch > > > When use fairsheduler as RM scheduler, before assign container we will sort > all queues or applications. > We will use FairSharePolicy#compare as the comparator, but the comparator is > not so perfect. > It have a problem as blow: > 1. when a queue use resource over minShare(minResources), it will put behind > the queue whose demand is zeor. > so it will greater opportunity to get the resource although it do not want. > It will waste schedule time when assign container > to queue or application. > I have fix it, and I will upload the patch to the jira. -- This message was sent by Atlassian JIRA (v6.4.14#64029) --------------------------------------------------------------------- To unsubscribe, e-mail: yarn-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: yarn-issues-h...@hadoop.apache.org