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https://issues.apache.org/jira/browse/YARN-9685?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16888629#comment-16888629
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Tao Yang commented on YARN-9685:
--------------------------------
Attached v1 patch to fix related places to take care of that scenarios.
Moreover, the width of percentage bars of capacity and used-capacity are
corrected when absolute max-capacity are zero, avoid dividing by zero and set
the width not 0 but POSITIVE_INFINITY.
> NPE when rendering the info table of leaf queue in non-accessible partitions
> ----------------------------------------------------------------------------
>
> Key: YARN-9685
> URL: https://issues.apache.org/jira/browse/YARN-9685
> Project: Hadoop YARN
> Issue Type: Bug
> Components: capacityscheduler
> Reporter: Tao Yang
> Assignee: Tao Yang
> Priority: Major
> Attachments: YARN-9685.001.patch
>
>
> I found incomplete queue info shown on scheduler page and NPE in RM log when
> rendering the info table of leaf queue in non-accessible partitions.
> {noformat}
> Caused by: java.lang.NullPointerException
> at
> org.apache.hadoop.yarn.server.resourcemanager.webapp.CapacitySchedulerPage$LeafQueueInfoBlock.renderQueueCapacityInfo(CapacitySchedulerPage.java:163)
> at
> org.apache.hadoop.yarn.server.resourcemanager.webapp.CapacitySchedulerPage$LeafQueueInfoBlock.renderLeafQueueInfoWithPartition(CapacitySchedulerPage.java:108)
> at
> org.apache.hadoop.yarn.server.resourcemanager.webapp.CapacitySchedulerPage$LeafQueueInfoBlock.render(CapacitySchedulerPage.java:97)
> at
> org.apache.hadoop.yarn.webapp.view.HtmlBlock.render(HtmlBlock.java:69)
> at
> org.apache.hadoop.yarn.webapp.view.HtmlBlock.renderPartial(HtmlBlock.java:79)
> at org.apache.hadoop.yarn.webapp.View.render(View.java:243)
> {noformat}
> The direct cause is that PartitionQueueCapacitiesInfo of leaf queues in
> non-accessible partitions are incomplete(part of fields are null such as
> configuredMinResource/configuredMaxResource/effectiveMinResource/effectiveMaxResource)
> but some places in CapacitySchedulerPage don't consider that.
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