sandflee created YARN-5419:
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Summary: fair scheduler page couldn't displayed sometimes
Key: YARN-5419
URL: https://issues.apache.org/jira/browse/YARN-5419
Project: Hadoop YARN
Issue Type: Bug
Environment: {noformat}
Caused by: java.util.ConcurrentModificationException
at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:901)
at java.util.ArrayList$Itr.next(ArrayList.java:851)
at
org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.FairSchedulerQueueInfo.<init>(FairSchedulerQueueInfo.java:105)
at
org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.FairSchedulerInfo.<init>(FairSchedulerInfo.java:47)
at
org.apache.hadoop.yarn.server.resourcemanager.webapp.FairSchedulerPage$QueuesBlock.render(FairSchedulerPage.java:159)
at org.apache.hadoop.yarn.webapp.view.HtmlBlock.render(HtmlBlock.java:69)
at
org.apache.hadoop.yarn.webapp.view.HtmlBlock.renderPartial(HtmlBlock.java:79)
at org.apache.hadoop.yarn.webapp.View.render(View.java:235)
at
org.apache.hadoop.yarn.webapp.view.HtmlPage$Page.subView(HtmlPage.java:49)
at
org.apache.hadoop.yarn.webapp.hamlet.HamletImpl$EImp._v(HamletImpl.java:117)
at org.apache.hadoop.yarn.webapp.hamlet.Hamlet$TD._(Hamlet.java:845)
at
org.apache.hadoop.yarn.webapp.view.TwoColumnLayout.render(TwoColumnLayout.java:71)
at org.apache.hadoop.yarn.webapp.view.HtmlPage.render(HtmlPage.java:82)
at org.apache.hadoop.yarn.webapp.Controller.render(Controller.java:212)
at
org.apache.hadoop.yarn.server.resourcemanager.webapp.RmController.scheduler(RmController.java:88)
... 45 more
{noformat}
Reporter: sandflee
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