[jira] [Work started] (HBASE-24402) Moving the meta region causes MetricsException when using above 2.6.0 hadoop version

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

     [ https://issues.apache.org/jira/browse/HBASE-24402?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Work on HBASE-24402 started by Jeongdae Kim.
--------------------------------------------
> Moving the meta region causes MetricsException when using above 2.6.0 hadoop version
> ------------------------------------------------------------------------------------
>
>                 Key: HBASE-24402
>                 URL: https://issues.apache.org/jira/browse/HBASE-24402
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 1.4.13
>            Reporter: Jeongdae Kim
>            Assignee: Jeongdae Kim
>            Priority: Minor
>
> When the meta region moved out from a region server then moved in to the one again, we got MetricsException below and the metric source for coprocessor couldn't be re-registered. it happened with hadoop 2.8.5
> {noformat}
> 2020-04-21 15:13:02,956 WARN  [HBase-Metrics2-1] util.MBeans: Error creating MBean object name: Hadoop:service=HBase,name=RegionServer,sub=Coprocessor.Region.C
> P_org.apache.hadoop.hbase.coprocessor.MultiRowMutationEndpoint
> org.apache.hadoop.metrics2.MetricsException: org.apache.hadoop.metrics2.MetricsException: Hadoop:service=HBase,name=RegionServer,sub=Coprocessor.Region.CP_org.
> apache.hadoop.hbase.coprocessor.MultiRowMutationEndpoint already exists!
>     at org.apache.hadoop.metrics2.lib.DefaultMetricsSystem.newObjectName(DefaultMetricsSystem.java:127)
>     at org.apache.hadoop.metrics2.lib.DefaultMetricsSystem.newMBeanName(DefaultMetricsSystem.java:102)
>     at org.apache.hadoop.metrics2.util.MBeans.getMBeanName(MBeans.java:121)
>     at org.apache.hadoop.metrics2.util.MBeans.register(MBeans.java:64)
>     at org.apache.hadoop.metrics2.impl.MetricsSourceAdapter.startMBeans(MetricsSourceAdapter.java:222)
>     at org.apache.hadoop.metrics2.impl.MetricsSourceAdapter.start(MetricsSourceAdapter.java:100)
>     at org.apache.hadoop.metrics2.impl.MetricsSystemImpl.registerSource(MetricsSystemImpl.java:268)
>     at org.apache.hadoop.metrics2.impl.MetricsSystemImpl$1.postStart(MetricsSystemImpl.java:239)
>     at jdk.internal.reflect.GeneratedMethodAccessor82.invoke(Unknown Source)
>     at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>     at java.base/java.lang.reflect.Method.invoke(Method.java:566)
>     at org.apache.hadoop.metrics2.impl.MetricsSystemImpl$3.invoke(MetricsSystemImpl.java:320)
>     at com.sun.proxy.$Proxy10.postStart(Unknown Source)
>     at org.apache.hadoop.metrics2.impl.MetricsSystemImpl.start(MetricsSystemImpl.java:193)
>     at org.apache.hadoop.metrics2.impl.JmxCacheBuster$JmxCacheBusterRunnable.run(JmxCacheBuster.java:109)
>     at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
>     at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
>     at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304)
>     at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
>     at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
>     at java.base/java.lang.Thread.run(Thread.java:834) 
> {noformat}



--
This message was sent by Atlassian Jira
(v8.3.4#803005)