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Zhaohui Xin commented on YARN-9277: ----------------------------------- Hi, [~Steven Rand], thanks for your reply. If one long-running task is preempted, It's next attempt will run long time similarly. If this attempt is also be preempted, this job will be difficult to finish. Also, I think it's not reasonable to limit long-running apps in specific queues, which is not generic. Maybe we have a better solution? > Add more restrictions In FairScheduler Preemption > -------------------------------------------------- > > Key: YARN-9277 > URL: https://issues.apache.org/jira/browse/YARN-9277 > Project: Hadoop YARN > Issue Type: Sub-task > Components: fairscheduler > Reporter: Zhaohui Xin > Assignee: Zhaohui Xin > Priority: Major > Attachments: YARN-9277.001.patch, YARN-9277.002.patch > > > > I think we should add more restrictions in fair scheduler preemption. > * We should not preempt self > * We should not preempt high priority job > * We should not preempt container which has been running for a long time. > * ... -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: yarn-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: yarn-issues-h...@hadoop.apache.org