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https://issues.apache.org/jira/browse/YARN-10540?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jim Brennan reassigned YARN-10540:
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Assignee: Jim Brennan
I have attached a patch that initializes nodeUtilization to a
ResourceUtilization of all zeros instead of null. This fixes the NPE. In
cases where ResourceCalculatorPlugin fails to initialize (like on Mac) the UI
will be misleading in this case, always showing 0 utilization. I will file a
follow-up Jira to make this better.
> Node page is broken in YARN UI1 and UI2 including RMWebService api for nodes
> ----------------------------------------------------------------------------
>
> Key: YARN-10540
> URL: https://issues.apache.org/jira/browse/YARN-10540
> Project: Hadoop YARN
> Issue Type: Task
> Components: webapp
> Affects Versions: 3.2.2
> Reporter: Sunil G
> Assignee: Jim Brennan
> Priority: Critical
> Attachments: Mac-Yarn-UI.png, Screenshot 2020-12-19 at 11.01.43
> PM.png, Screenshot 2020-12-19 at 11.02.14 PM.png, YARN-10540.001.patch,
> Yarn-UI-Ubuntu.png, yarnodes.png, yarnui2onubuntu.png
>
>
> YARN-10450 added changes in NodeInfo class.
> Various exceptions are showing while accessing UI2 and UI1 NODE pages.
> {code:java}
> Caused by: java.lang.NullPointerException
> at
> org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.NodeInfo.<init>(NodeInfo.java:103)
> at
> org.apache.hadoop.yarn.server.resourcemanager.webapp.NodesPage$NodesBlock.render(NodesPage.java:164)
> at
> org.apache.hadoop.yarn.webapp.view.HtmlBlock.render(HtmlBlock.java:69)
> at
> org.apache.hadoop.yarn.webapp.view.HtmlBlock.renderPartial(HtmlBlock.java:79)
> at org.apache.hadoop.yarn.webapp.View.render(View.java:243)
> at
> org.apache.hadoop.yarn.webapp.view.HtmlPage$Page.subView(HtmlPage.java:49)
> at
> org.apache.hadoop.yarn.webapp.hamlet2.HamletImpl$EImp._v(HamletImpl.java:117)
> at org.apache.hadoop.yarn.webapp.hamlet2.Hamlet$TD.__(Hamlet.java:848)
> 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:216)
> at
> org.apache.hadoop.yarn.server.resourcemanager.webapp.RmController.nodes(RmController.java:70)
> {code}
> {code:java}
> 2020-12-19 22:55:54,846 WARN
> org.apache.hadoop.yarn.webapp.GenericExceptionHandler: INTERNAL_SERVER_ERROR
> java.lang.NullPointerException
> at
> org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.NodeInfo.<init>(NodeInfo.java:103)
> at
> org.apache.hadoop.yarn.server.resourcemanager.webapp.RMWebServices.getNodes(RMWebServices.java:450)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:498)
> {code}
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