Details
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Bug
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Status: Resolved
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Minor
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Resolution: Fixed
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2.3.0
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None
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None
Description
java.lang.NullPointerException at org.apache.storm.scheduler.resource.normalization.NormalizedResourceRequest.addResourceMap(NormalizedResourceRequest.java:195) at org.apache.storm.daemon.ui.UIHelpers.getClusterSummary(UIHelpers.java:644) at org.apache.storm.daemon.ui.resources.StormApiResource.getClusterSummary(StormApiResource.java:136) 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) at org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory.lambda$static$0(ResourceMethodInvocationHandlerFactory.java:52) at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher$1.run(AbstractJavaResourceMethodDispatcher.java:124) at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke(AbstractJavaResourceMethodDispatcher.java:167) at org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$ResponseOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:176) at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:79) at org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:469) at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:391) at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:80) at org.glassfish.jersey.server.ServerRuntime$1.run(ServerRuntime.java:253) at org.glassfish.jersey.internal.Errors$1.call(Errors.java:248) at org.glassfish.jersey.internal.Errors$1.call(Errors.java:244)
https://github.com/apache/storm/blob/master/storm-webapp/src/main/java/org/apache/storm/daemon/ui/UIHelpers.java#L644
because only
if (resources != null && underlyingScheduler instanceof ResourceAwareScheduler)
https://github.com/apache/storm/blob/master/storm-server/src/main/java/org/apache/storm/daemon/nimbus/Nimbus.java#L2941
supervisor used_generic_resources will not be null.
