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Hu Ziqian commented on YARN-8232: --------------------------------- hi [~leftnoteasy], I've add a new patch with an unit test. > RMContainer lost queue name when RM HA happens > ---------------------------------------------- > > Key: YARN-8232 > URL: https://issues.apache.org/jira/browse/YARN-8232 > Project: Hadoop YARN > Issue Type: Bug > Components: resourcemanager > Affects Versions: 2.8.3 > Reporter: Hu Ziqian > Assignee: Hu Ziqian > Priority: Major > Attachments: YARN-8232-branch-2.8.3.001.patch, YARN-8232.001.patch, > YARN-8232.002.patch > > > RMContainer has a member variable queuename to store which queue the > container belongs to. When RM HA happens and RMContainers are recovered by > scheduler based on NM reports, the queue name isn't recovered and always be > null. > This situation causes some problems. Here is a case in preemption. Preemption > uses container's queue name to deduct preemptable resources when we use more > than one preempt selector, (for example, enable intra-queue preemption,) . > The detail is in > {code:java} > CapacitySchedulerPreemptionUtils.deductPreemptableResourcesBasedSelectedCandidates(){code} > If the contain's queue name is null, this function will throw a > YarnRuntimeException because it tries to get the container's > TempQueuePerPartition and the preemption fails. > Our patch solved this problem by setting container queue name when recover > containers. The patch is based on branch-2.8.3. > > -- 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