[jira] [Commented] (HBASE-27824) NPE in MetricsMasterWrapperImpl.isRunning

["Hudson (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-27824?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17719630#comment-17719630 ] 

Hudson commented on HBASE-27824:
--------------------------------

Results for branch branch-2.4
	[build #555 on builds.a.o|https://ci-hbase.apache.org/job/HBase%20Nightly/job/branch-2.4/555/]: (/) *{color:green}+1 overall{color}*
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details (if available):

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(/) {color:green}+1 client integration test{color}


> NPE in MetricsMasterWrapperImpl.isRunning
> -----------------------------------------
>
>                 Key: HBASE-27824
>                 URL: https://issues.apache.org/jira/browse/HBASE-27824
>             Project: HBase
>          Issue Type: Bug
>          Components: test
>            Reporter: Duo Zhang
>            Assignee: Duo Zhang
>            Priority: Major
>             Fix For: 2.6.0, 3.0.0-alpha-4, 2.5.5, 2.4.18
>
>
> {quote}
> 2023-05-03T05:54:09,312 ERROR [HBase-Metrics2-1 {}] impl.MetricsSourceAdapter(202): Error getting metrics from source Master,sub=Server
> java.lang.NullPointerException: null
> 	at org.apache.hadoop.hbase.master.MetricsMasterWrapperImpl.isRunning(MetricsMasterWrapperImpl.java:143) ~[classes/:?]
> 	at org.apache.hadoop.hbase.master.MetricsMasterSourceImpl.getMetrics(MetricsMasterSourceImpl.java:92) ~[hbase-hadoop-compat-3.0.0-alpha-4-SNAPSHOT.jar:?]
> 	at org.apache.hadoop.metrics2.impl.MetricsSourceAdapter.getMetrics(MetricsSourceAdapter.java:200) ~[hadoop-common-3.2.4.jar:?]
> 	at org.apache.hadoop.metrics2.impl.MetricsSourceAdapter.updateJmxCache(MetricsSourceAdapter.java:183) ~[hadoop-common-3.2.4.jar:?]
> 	at org.apache.hadoop.metrics2.impl.MetricsSourceAdapter.getMBeanInfo(MetricsSourceAdapter.java:156) ~[hadoop-common-3.2.4.jar:?]
> 	at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getNewMBeanClassName(DefaultMBeanServerInterceptor.java:333) ~[?:1.8.0_362]
> 	at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerMBean(DefaultMBeanServerInterceptor.java:319) ~[?:1.8.0_362]
> 	at com.sun.jmx.mbeanserver.JmxMBeanServer.registerMBean(JmxMBeanServer.java:522) ~[?:1.8.0_362]
> 	at org.apache.hadoop.metrics2.util.MBeans.register(MBeans.java:98) ~[hadoop-common-3.2.4.jar:?]
> 	at org.apache.hadoop.metrics2.util.MBeans.register(MBeans.java:72) ~[hadoop-common-3.2.4.jar:?]
> 	at org.apache.hadoop.metrics2.impl.MetricsSourceAdapter.startMBeans(MetricsSourceAdapter.java:222) ~[hadoop-common-3.2.4.jar:?]
> 	at org.apache.hadoop.metrics2.impl.MetricsSourceAdapter.start(MetricsSourceAdapter.java:101) ~[hadoop-common-3.2.4.jar:?]
> 	at org.apache.hadoop.metrics2.impl.MetricsSystemImpl.registerSource(MetricsSystemImpl.java:268) ~[hadoop-common-3.2.4.jar:?]
> 	at org.apache.hadoop.metrics2.impl.MetricsSystemImpl$1.postStart(MetricsSystemImpl.java:239) ~[hadoop-common-3.2.4.jar:?]
> 	at sun.reflect.GeneratedMethodAccessor54.invoke(Unknown Source) ~[?:?]
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_362]
> 	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_362]
> 	at org.apache.hadoop.metrics2.impl.MetricsSystemImpl$3.invoke(MetricsSystemImpl.java:324) ~[hadoop-common-3.2.4.jar:?]
> 	at com.sun.proxy.$Proxy31.postStart(Unknown Source) ~[?:?]
> 	at org.apache.hadoop.metrics2.impl.MetricsSystemImpl.start(MetricsSystemImpl.java:193) ~[hadoop-common-3.2.4.jar:?]
> 	at org.apache.hadoop.metrics2.impl.JmxCacheBuster$JmxCacheBusterRunnable.run(JmxCacheBuster.java:102) ~[hbase-hadoop-compat-3.0.0-alpha-4-SNAPSHOT.jar:?]
> 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[?:1.8.0_362]
> 	at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[?:1.8.0_362]
> 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180) ~[?:1.8.0_362]
> 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293) ~[?:1.8.0_362]
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) ~[?:1.8.0_362]
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) ~[?:1.8.0_362]
> 	at java.lang.Thread.run(Thread.java:750) ~[?:1.8.0_362]
> {quote}
> Found this in the output when running TestAssignmentManager.testAssignSocketTimeout. It should not be related to the failure of the test but anyway, throwing NPE is not good so we need to check whether this is a test issue or a real issue in our code.



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