[jira] [Commented] (BOOKKEEPER-625) On OutOfMemoryError in NIOServerFactory thread bookie should shutdown

["Uma Maheswara Rao G (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/BOOKKEEPER-625?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13683101#comment-13683101 ] 

Uma Maheswara Rao G commented on BOOKKEEPER-625:
------------------------------------------------

This can happen in any thread. Handling OOM in all threads and shutting down may not be a correct option I guess.
one option is : -XX:OnOutOfMemoryError="kill -9 %p" which will shutdown the process automatically on getting OOME. But this is not graceful as we pass 'kill -9'
We can discuss more if we think we must go gracefully only. or using UncaughtExceptionHandler can do gracefully? (but I did not use UncaughtExceptionHandler in my past experience)

Thoughts?
                
> On OutOfMemoryError in NIOServerFactory thread bookie should shutdown
> ---------------------------------------------------------------------
>
>                 Key: BOOKKEEPER-625
>                 URL: https://issues.apache.org/jira/browse/BOOKKEEPER-625
>             Project: Bookkeeper
>          Issue Type: Bug
>          Components: bookkeeper-server
>    Affects Versions: 4.2.1, 4.3.0
>            Reporter: Vinay
>            Assignee: Vinay
>             Fix For: 4.2.2, 4.3.0
>
>
> Observed OutOfMemoryError in NIOServerFactory, but it didnt bring down the bookie and it continued to run without serving. 
> On OOME in any thread, bookie should shutdown.

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