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From "Lars Hofhansl (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (PHOENIX-5082) Observations about the Phoenix-Omid integration
Date Wed, 26 Dec 2018 21:47:00 GMT

    [ https://issues.apache.org/jira/browse/PHOENIX-5082?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16729169#comment-16729169
] 

Lars Hofhansl edited comment on PHOENIX-5082 at 12/26/18 9:46 PM:
------------------------------------------------------------------

5. It looks like the region server now is longer cleanly shutting down. After I stop HBase
it lingers around - I'll verify that this is related!

Edit: Yep... I see this in jstack:
{code}
"omid-completor-0" #525 prio=5 os_prio=0 tid=0x00005558f70bc800 nid=0x24bc waiti
ng on condition [0x00007f7c75fb0000]
   java.lang.Thread.State: WAITING (parking)
        at sun.misc.Unsafe.park(Native Method)
        - parking to wait for  <0x000000055022a9d8> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
        at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
        at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
        at java.util.concurrent.ArrayBlockingQueue.take(ArrayBlockingQueue.java:403)
        at org.apache.omid.committable.hbase.HBaseCommitTable$HBaseClient.run(HBaseCommitTable.java:307)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
{code}

Note that this is not daemon thread.

Looks like as soon as any data is inserted into a transactional table, the region server will
not shut off.


was (Author: lhofhansl):
5. It looks like the region server now is longer cleanly shutting down. After I stop HBase
it lingers around - I'll verify that this is related!

Edit: Looks like as soon as any data is inserted into a transactional table, the region server
will not shut off.

> Observations about the Phoenix-Omid integration
> -----------------------------------------------
>
>                 Key: PHOENIX-5082
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-5082
>             Project: Phoenix
>          Issue Type: Task
>            Reporter: Lars Hofhansl
>            Priority: Major
>         Attachments: Omid-profile.png, Omid-sample.png
>
>
> Filing this issue to track my observations and perhaps some fixes.
> [~ohads]
> [~jamestaylor]
> [~yonigo]



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