[jira] [Closed] (HBASE-4831) LRU stats thread should be a daemon thread

["Andrew Kyle Purtell (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-4831?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andrew Kyle Purtell closed HBASE-4831.
--------------------------------------
    Assignee:     (was: Prakash Khemani)

> LRU stats thread should be a daemon thread
> ------------------------------------------
>
>                 Key: HBASE-4831
>                 URL: https://issues.apache.org/jira/browse/HBASE-4831
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Prakash Khemani
>            Priority: Major
>
> I have seen the hung processes where the following was the only non-daemon thread
> "LRU Statistics #0" prio=10 tid=0x00002ab0bc04f800 nid=0x11ac waiting on condition [0x0000000042f57000]
>    java.lang.Thread.State: TIMED_WAITING (parking)
>   at sun.misc.Unsafe.park(Native Method)
>   - parking to wait for  <0x00002aaab9a1c000> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
>   at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:198)
>   at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2025)
>   at java.util.concurrent.DelayQueue.take(DelayQueue.java:164)
>   at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:609)
>   at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:602)
>   at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:947)
>   at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
>   at java.lang.Thread.run(Thread.java:662)



--
This message was sent by Atlassian Jira
(v8.20.7#820007)