GitHub user Ethanlm opened a pull request: https://github.com/apache/storm/pull/2819
[STORM-3213] fix server error on system component page on storm UI Fix ``` 2018-09-05 16:15:24.927 o.a.s.t.ProcessFunction pool-21-thread-55 [ERROR] Internal error processing getComponentPageInfo java.lang.RuntimeException: java.lang.NullPointerException at org.apache.storm.daemon.nimbus.Nimbus.getComponentPageInfo(Nimbus.java:4238) ~[storm-server-2.0.0-SNAPSHOT.jar:2.0.0-SNAPSHOT] at org.apache.storm.generated.Nimbus$Processor$getComponentPageInfo.getResult(Nimbus.java:4577) ~[storm-client-2.0.0-SNAPSHOT.jar:2.0.0-SNAPSHOT] at org.apache.storm.generated.Nimbus$Processor$getComponentPageInfo.getResult(Nimbus.java:4556) ~[storm-client-2.0.0-SNAPSHOT.jar:2.0.0-SNAPSHOT] at org.apache.storm.thrift.ProcessFunction.process(ProcessFunction.java:38) [shaded-deps-2.0.0-SNAPSHOT.jar:2.0.0-SNAPSHOT] at org.apache.storm.thrift.TBaseProcessor.process(TBaseProcessor.java:39) [shaded-deps-2.0.0-SNAPSHOT.jar:2.0.0-SNAPSHOT] at org.apache.storm.security.auth.SimpleTransportPlugin$SimpleWrapProcessor.process(SimpleTransportPlugin.java:169) [storm-client-2.0.0-SNAPSHOT.jar:2.0.0-SNAPSHOT] at org.apache.storm.thrift.server.AbstractNonblockingServer$FrameBuffer.invoke(AbstractNonblockingServer.java:518) [shaded-deps-2.0.0-SNAPSHOT.jar:2.0.0-SNAPSHOT] at org.apache.storm.thrift.server.Invocation.run(Invocation.java:18) [shaded-deps-2.0.0-SNAPSHOT.jar:2.0.0-SNAPSHOT] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [?:1.8.0_131] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [?:1.8.0_131] at java.lang.Thread.run(Thread.java:748) [?:1.8.0_131] Caused by: java.lang.NullPointerException at org.apache.storm.scheduler.resource.ResourceUtils.getBoltResources(ResourceUtils.java:37) ~[storm-server-2.0.0-SNAPSHOT.jar:2.0.0-SNAPSHOT] at org.apache.storm.daemon.nimbus.Nimbus.getComponentPageInfo(Nimbus.java:4192) ~[storm-server-2.0.0-SNAPSHOT.jar:2.0.0-SNAPSHOT] ... 10 more ``` You can merge this pull request into a Git repository by running: $ git pull https://github.com/Ethanlm/storm STORM-3213 Alternatively you can review and apply these changes as the patch at: https://github.com/apache/storm/pull/2819.patch To close this pull request, make a commit to your master/trunk branch with (at least) the following in the commit message: This closes #2819 ---- commit 26a6c878ce368ddba026a2977f484523a70f3d56 Author: Ethan Li <ethanopensource@...> Date: 2018-09-05T19:31:07Z [STORM-3213] fix server error on system component page on storm UI ---- ---