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https://issues.apache.org/jira/browse/YARN-9012?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Craig Condit updated YARN-9012:
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Attachment: YARN-9012.001.patch
> NPE in scheduler UI when min-capacity is not configured
> -------------------------------------------------------
>
> Key: YARN-9012
> URL: https://issues.apache.org/jira/browse/YARN-9012
> Project: Hadoop YARN
> Issue Type: Bug
> Affects Versions: 3.1.1
> Reporter: tianjuan
> Assignee: Craig Condit
> Priority: Major
> Attachments: YARN-9012.001.patch
>
>
> I encountered the following while reviewing and testing branch YARN-5881.
> The design document from YARN-5881 says that for max-capacity:
> {quote} For any queue: If min-resource not set, it is automatically set to 0.
> (Same as today)
> {quote}
> When I try leaving blank {{yarn.scheduler.capacity.<queue-path>.capacity}},
> the RMUI scheduler page refuses to render. It looks like it's in
> {{CapacitySchedulerPage$ LeafQueueInfoBlock}}:
> {noformat}
> at java.lang.Thread.run(Thread.java:748)
> 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$LeafQueueInfoBlock.render(CapacitySchedulerPage.java:97)
> at org.apache.hadoop.yarn.webapp.view.HtmlBlock.render(HtmlBlock.java:69)
> at
> org.apache.hadoop.yarn.webapp.view.HtmlBlock.renderPartial(HtmlBlock.java:79)
> at org.apache.hadoop.yarn.webapp.View.render(View.java:243)
> at
> org.apache.hadoop.yarn.webapp.view.HtmlBlock$Block.subView(HtmlBlock.java:43)
> at
> org.apache.hadoop.yarn.webapp.hamlet2.HamletImpl$EImp._v(HamletImpl.java:117)
> at org.apache.hadoop.yarn.webapp.hamlet2.Hamlet$LI.__(Hamlet.java:7709)
> at
> org.apache.hadoop.yarn.server.resourcemanager.webapp.CapacitySchedulerPage$QueueBlock.render(CapacitySchedulerPage.java:342){noformat}
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