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https://issues.apache.org/jira/browse/YARN-7508?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16256364#comment-16256364
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Tao Yang commented on YARN-7508:
--------------------------------
Thanks [~sunilg] and [~bibinchundatt] for your review and comments.
Other instances of similar usage seem good since they can guarantee that
{{schedulerContainer.getSchedulerNode().getReservedContainer()}} is not null.
> NPE in FiCaSchedulerApp when debug log enabled and try to commit outdated
> reserved proposal in async-scheduling mode
> --------------------------------------------------------------------------------------------------------------------
>
> Key: YARN-7508
> URL: https://issues.apache.org/jira/browse/YARN-7508
> Project: Hadoop YARN
> Issue Type: Bug
> Components: capacityscheduler
> Affects Versions: 2.9.0, 3.0.0-alpha4
> Reporter: Tao Yang
> Assignee: Tao Yang
> Attachments: YARN-7508.001.patch
>
>
> YARN-6678 have fixed the IllegalStateException problem but the debug log it
> added may cause NPE when trying to print containerId of non-existed reserved
> container on this node. Replace
> {{schedulerContainer.getSchedulerNode().getReservedContainer().getContainerId()}}
> with {{schedulerContainer.getSchedulerNode().getReservedContainer()}} can
> fix this problem.
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