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https://issues.apache.org/jira/browse/YARN-6275?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15894837#comment-15894837
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Robert Kanter commented on YARN-6275:
-------------------------------------
I'm pretty sure this was broken by HADOOP-10075 when we did the Jetty 9 upgrade.
> Fail to show real-time tracking charts in SLS
> ---------------------------------------------
>
> Key: YARN-6275
> URL: https://issues.apache.org/jira/browse/YARN-6275
> Project: Hadoop YARN
> Issue Type: Bug
> Components: scheduler-load-simulator
> Affects Versions: 3.0.0-alpha2
> Reporter: Yufei Gu
> Assignee: Yufei Gu
>
> Stack trace:
> {code}
> java.lang.NullPointerException
> at
> org.eclipse.jetty.server.handler.ResourceHandler.handle(ResourceHandler.java:499)
> at org.apache.hadoop.yarn.sls.web.SLSWebApp$1.handle(SLSWebApp.java:152)
> at
> org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134)
> at org.eclipse.jetty.server.Server.handle(Server.java:524)
> at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:319)
> at
> org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:253)
> at
> org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:273)
> at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:95)
> at
> org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:93)
> at
> org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.executeProduceConsume(ExecuteProduceConsume.java:303)
> at
> org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceConsume(ExecuteProduceConsume.java:148)
> at
> org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:136)
> at
> org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:671)
> at
> org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:589)
> at java.lang.Thread.run(Thread.java:745)
> {code}
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