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Wangda Tan commented on YARN-4945: ---------------------------------- bq. Trying to do this coordination seems to me to be quite complicated. Using logic similar to {{deductPreemptableResourcesBasedSelectedCandidates}} should be able to achieve this, and I think it doesn't bring too many complexities to the implementation. bq. Would it be sufficient to just avoid preempting during the intra-queue policies if there are already containers in the selectedContainers list? If we want to avoid excessive preemption, It may not sufficient to me. We need to adjust ideal / to-preempt resource properly as well. > [Umbrella] Capacity Scheduler Preemption Within a queue > ------------------------------------------------------- > > Key: YARN-4945 > URL: https://issues.apache.org/jira/browse/YARN-4945 > Project: Hadoop YARN > Issue Type: Bug > Reporter: Wangda Tan > Attachments: Intra-Queue Preemption Use Cases.pdf, > IntraQueuepreemption-CapacityScheduler (Design).pdf, YARN-2009-wip.2.patch, > YARN-2009-wip.patch > > > This is umbrella ticket to track efforts of preemption within a queue to > support features like: > YARN-2009. YARN-2113. YARN-4781. -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: yarn-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: yarn-issues-h...@hadoop.apache.org