[jira] [Assigned] (YARN-4563) ContainerMetrics deadlocks

["Naganarasimha G R (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/YARN-4563?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Naganarasimha G R reassigned YARN-4563:
---------------------------------------

    Assignee: Naganarasimha G R

> ContainerMetrics deadlocks
> --------------------------
>
>                 Key: YARN-4563
>                 URL: https://issues.apache.org/jira/browse/YARN-4563
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: nodemanager
>         Environment: HDP 2.3.2 (Hadoop 2.7.1 + patches)
>            Reporter: Akira AJISAKA
>            Assignee: Naganarasimha G R
>            Priority: Blocker
>         Attachments: jstack.log
>
>
> On one of our environment, some NodeManagers' webapp do not working. I found a dead lock in the thread dump.
> {noformat}
> Found one Java-level deadlock:
> =============================
> "1193752357@qtp-907815246-22238":
>   waiting to lock monitor 0x0000000005e20a18 (object 0x00000000f6afa048, a org.apache.hadoop.yarn.server.nodemanager.containermanager.monitor.ContainerMetrics),
>   which is held by "2107307914@qtp-907815246-19994"
> "2107307914@qtp-907815246-19994":
>   waiting to lock monitor 0x0000000001a000a8 (object 0x00000000d4f1e1f8, a org.apache.hadoop.metrics2.impl.MetricsSystemImpl),
>   which is held by "Timer for 'NodeManager' metrics system"
> "Timer for 'NodeManager' metrics system":
>   waiting to lock monitor 0x00000000027ade88 (object 0x00000000f6582df0, a org.apache.hadoop.yarn.server.nodemanager.containermanager.monitor.ContainerMetrics),
>   which is held by "1530638165@qtp-907815246-19992"
> "1530638165@qtp-907815246-19992":
>   waiting to lock monitor 0x0000000001a000a8 (object 0x00000000d4f1e1f8, a org.apache.hadoop.metrics2.impl.MetricsSystemImpl),
>   which is held by "Timer for 'NodeManager' metrics system"
> {noformat}



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