[ https://issues.apache.org/jira/browse/YARN-2113?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Eric Payne updated YARN-2113: ----------------------------- Attachment: YARN-2113.apply.onto.0012.ericp.patch Thanks [~sunilg] for the all of your work and for the updated patch. I think we are making the USERLIMIT_FIRST code to complicated. [The original problem I was hoping to solve|https://issues.apache.org/jira/browse/YARN-2113?focusedCommentId=15951222&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15951222] was that no preemption would occur for a user that is #users > (100/MULP). So, if you have a MULP of 50%, 2 active users can be in the queue. So, if a third user comes in AND userlimit_first is true, no preemption should occur for the third user. I'm still thinking this through, but I am attaching a patch that I think addresses my concern. This patch would be applied on top of YARN-2113.0012.patch. > Add cross-user preemption within CapacityScheduler's leaf-queue > --------------------------------------------------------------- > > Key: YARN-2113 > URL: https://issues.apache.org/jira/browse/YARN-2113 > Project: Hadoop YARN > Issue Type: Sub-task > Components: scheduler > Reporter: Vinod Kumar Vavilapalli > Assignee: Sunil G > Attachments: IntraQueue Preemption-Impact Analysis.pdf, > TestNoIntraQueuePreemptionIfBelowUserLimitAndDifferentPrioritiesWithExtraUsers.txt, > YARN-2113.0001.patch, YARN-2113.0002.patch, YARN-2113.0003.patch, > YARN-2113.0004.patch, YARN-2113.0005.patch, YARN-2113.0006.patch, > YARN-2113.0007.patch, YARN-2113.0008.patch, YARN-2113.0009.patch, > YARN-2113.0010.patch, YARN-2113.0011.patch, YARN-2113.0012.patch, > YARN-2113.apply.onto.0012.ericp.patch, YARN-2113.v0.patch > > > Preemption today only works across queues and moves around resources across > queues per demand and usage. We should also have user-level preemption within > a queue, to balance capacity across users in a predictable manner. -- This message was sent by Atlassian JIRA (v6.3.15#6346) --------------------------------------------------------------------- To unsubscribe, e-mail: yarn-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: yarn-issues-h...@hadoop.apache.org