Jian He created YARN-3574:
-----------------------------
Summary: RM hangs on stopping MetricsSinkAdapter when
transitioning to standby
Key: YARN-3574
URL: https://issues.apache.org/jira/browse/YARN-3574
Project: Hadoop YARN
Issue Type: Bug
Reporter: Jian He
We've seen a situation that one RM hangs on stopping the MetricsSinkAdapter
{code}
"main-EventThread" daemon prio=10 tid=0x00007f9b24031000 nid=0x2d18 in
Object.wait() [0x00007f9afe7eb000]
java.lang.Thread.State: WAITING (on object monitor)
at java.lang.Object.wait(Native Method)
- waiting on <0x00000000c058dcf8> (a
org.apache.hadoop.metrics2.impl.MetricsSinkAdapter$1)
at java.lang.Thread.join(Thread.java:1281)
- locked <0x00000000c058dcf8> (a
org.apache.hadoop.metrics2.impl.MetricsSinkAdapter$1)
at java.lang.Thread.join(Thread.java:1355)
at
org.apache.hadoop.metrics2.impl.MetricsSinkAdapter.stop(MetricsSinkAdapter.java:202)
at
org.apache.hadoop.metrics2.impl.MetricsSystemImpl.stopSinks(MetricsSystemImpl.java:472)
- locked <0x00000000c04cc1a0> (a
org.apache.hadoop.metrics2.impl.MetricsSystemImpl)
at
org.apache.hadoop.metrics2.impl.MetricsSystemImpl.stop(MetricsSystemImpl.java:213)
- locked <0x00000000c04cc1a0> (a
org.apache.hadoop.metrics2.impl.MetricsSystemImpl)
at
org.apache.hadoop.metrics2.impl.MetricsSystemImpl.shutdown(MetricsSystemImpl.java:592)
- locked <0x00000000c04cc1a0> (a
org.apache.hadoop.metrics2.impl.MetricsSystemImpl)
at
org.apache.hadoop.metrics2.lib.DefaultMetricsSystem.shutdownInstance(DefaultMetricsSystem.java:72)
at
org.apache.hadoop.metrics2.lib.DefaultMetricsSystem.shutdown(DefaultMetricsSystem.java:68)
at
org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$RMActiveServices.serviceStop(ResourceManager.java:605)
at
org.apache.hadoop.service.AbstractService.stop(AbstractService.java:221)
- locked <0x00000000c0503568> (a java.lang.Object)
at
org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.stopActiveServices(ResourceManager.java:1024)
at
org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.transitionToStandby(ResourceManager.java:1076)
- locked <0x00000000c03fe3b8> (a
org.apache.hadoop.yarn.server.resourcemanager.ResourceManager)
at
org.apache.hadoop.yarn.server.resourcemanager.AdminService.transitionToStandby(AdminService.java:322)
- locked <0x00000000c0502b10> (a
org.apache.hadoop.yarn.server.resourcemanager.AdminService)
at
org.apache.hadoop.yarn.server.resourcemanager.EmbeddedElectorService.becomeStandby(EmbeddedElectorService.java:135)
at
org.apache.hadoop.ha.ActiveStandbyElector.becomeStandby(ActiveStandbyElector.java:911)
at
org.apache.hadoop.ha.ActiveStandbyElector.processResult(ActiveStandbyElector.java:428)
- locked <0x00000000c0718940> (a
org.apache.hadoop.ha.ActiveStandbyElector)
at
org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:605)
at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:498)
{code}
looks like the {{sinkThread.interrupt();}} in MetricsSinkAdapter#stop doesn't
really interrupt the thread, which cause it to hang at join.
This appears only once.
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