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https://issues.apache.org/jira/browse/YARN-4624?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15167113#comment-15167113
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Brahma Reddy Battula commented on YARN-4624:
--------------------------------------------
As doing null check at {{capacities.getMaxAMLimitPercentage() == null}}
changed to wrapper which was not used anywhere. and couldn't be checked null in
{{PartitionQueueCapacitiesInfo#getMaxAMLimitPercentage}} (REST API call will
fail).
> NPE in PartitionQueueCapacitiesInfo while accessing Schduler UI
> ---------------------------------------------------------------
>
> Key: YARN-4624
> URL: https://issues.apache.org/jira/browse/YARN-4624
> Project: Hadoop YARN
> Issue Type: Bug
> Reporter: Brahma Reddy Battula
> Assignee: Brahma Reddy Battula
> Attachments: SchedulerUIWithOutLabelMapping.png, YARN-2674-002.patch,
> YARN-4624-003.patch, YARN-4624.patch
>
>
> Scenario:
> =======
> Configure nodelables and add to cluster
> Start the cluster
> {noformat}
> java.lang.NullPointerException
> at
> org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.PartitionQueueCapacitiesInfo.getMaxAMLimitPercentage(PartitionQueueCapacitiesInfo.java:114)
> 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:105)
> at
> org.apache.hadoop.yarn.server.resourcemanager.webapp.CapacitySchedulerPage$LeafQueueInfoBlock.render(CapacitySchedulerPage.java:94)
> at
> org.apache.hadoop.yarn.webapp.view.HtmlBlock.render(HtmlBlock.java:69)
> at
> org.apache.hadoop.yarn.webapp.view.HtmlBlock.renderPartial(HtmlBlock.java:79)
> at org.apache.hadoop.yarn.webapp.View.render(View.java:235)
> at
> org.apache.hadoop.yarn.webapp.view.HtmlBlock$Block.subView(HtmlBlock.java:43)
> at
> org.apache.hadoop.yarn.webapp.hamlet.HamletImpl$EImp._v(HamletImpl.java:117)
> at org.apache.hadoop.yarn.webapp.hamlet.Hamlet$LI._(Hamlet.java:7702)
> at
> org.apache.hadoop.yarn.server.resourcemanager.webapp.CapacitySchedulerPage$QueueBlock.render(CapacitySchedulerPage.java:293)
> at
> org.apache.hadoop.yarn.webapp.view.HtmlBlock.render(HtmlBlock.java:69)
> at
> org.apache.hadoop.yarn.webapp.view.HtmlBlock.renderPartial(HtmlBlock.java:79)
> at org.apache.hadoop.yarn.webapp.View.render(View.java:235)
> at
> org.apache.hadoop.yarn.webapp.view.HtmlBlock$Block.subView(HtmlBlock.java:43)
> at
> org.apache.hadoop.yarn.webapp.hamlet.HamletImpl$EImp._v(HamletImpl.java:117)
> at org.apache.hadoop.yarn.webapp.hamlet.Hamlet$LI._(Hamlet.java:7702)
> at
> org.apache.hadoop.yarn.server.resourcemanager.webapp.CapacitySchedulerPage$QueuesBlock.render(CapacitySchedulerPage.java:447)
> 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:235)
> {noformat}
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