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Zookeeper, mail # user - OOM/no more threads?


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Re: OOM/no more threads?
Camille Fournier 2012-07-09, 03:11
What does a jstack on another long-running instance show? Anything out of
the norm?

C

On Sun, Jul 8, 2012 at 11:08 PM, Jordan Zimmerman <
[EMAIL PROTECTED]> wrote:

> I'm not sure which of the instances went down, but it could be a few weeks.
>
> -JZ
>
> On Jul 8, 2012, at 8:06 PM, Camille Fournier wrote:
>
> > Yeah a tickle in the back of my mind says that this is a JVM bug. When
> was
> > the last time you restarted these instances?
> >
> > C
> >
> > On Sun, Jul 8, 2012 at 11:04 PM, Jordan Zimmerman <
> > [EMAIL PROTECTED]> wrote:
> >
> >> It's not really out of memory. It's "unable to create new native
> thread".
> >> It appears to have to do with JMX (notice the RMI).
> >>
> >> -JZ
> >>
> >> On Jul 8, 2012, at 7:43 PM, Camille Fournier wrote:
> >>
> >>> Not known specifically that I know of. Can you give us more details?
> Did
> >>> you actually run out of memory? File descriptors? What does a heap dump
> >>> tell you?
> >>>
> >>> C
> >>>
> >>> On Sun, Jul 8, 2012 at 10:29 PM, Jordan Zimmerman <
> >>> [EMAIL PROTECTED]> wrote:
> >>>
> >>>> Is this a known issue in 3.3.3? If so, is it fixed in 3.3.5?
> >>>>
> >>>> Sun Jul 08 23:01:28 GMT 2012 ERROR ZooKeeper Server: WARNING: RMI TCP
> >>>> Accept-0: accept loop for ServerSocket[addr> >>>> 0.0.0.0/0.0.0.0,port=0,localport=59462] throws
> >>>> Sun Jul 08 23:01:28 GMT 2012 ERROR ZooKeeper Server: Jul 8, 2012
> >> 11:01:28
> >>>> PM sun.rmi.transport.tcp.TCPTransport$AcceptLoop executeAcceptLoop
> >>>> Sun Jul 08 23:01:28 GMT 2012 ERROR ZooKeeper Server: at
> >>>> java.lang.Thread.run(Thread.java:636)
> >>>> Sun Jul 08 23:01:28 GMT 2012 ERROR ZooKeeper Server: at
> >>>>
> sun.rmi.transport.tcp.TCPTransport$AcceptLoop.run(TCPTransport.java:359)
> >>>> Sun Jul 08 23:01:28 GMT 2012 ERROR ZooKeeper Server: at
> >>>>
> >>
> sun.rmi.transport.tcp.TCPTransport$AcceptLoop.executeAcceptLoop(TCPTransport.java:402)
> >>>> Sun Jul 08 23:01:28 GMT 2012 ERROR ZooKeeper Server: at
> >>>>
> >>
> java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:1336)
> >>>> Sun Jul 08 23:01:28 GMT 2012 ERROR ZooKeeper Server: at
> >>>>
> >>
> java.util.concurrent.ThreadPoolExecutor.addWorker(ThreadPoolExecutor.java:943)
> >>>> Sun Jul 08 23:01:28 GMT 2012 ERROR ZooKeeper Server: at
> >>>> java.lang.Thread.start(Thread.java:614)
> >>>> Sun Jul 08 23:01:28 GMT 2012 ERROR ZooKeeper Server: at
> >>>> java.lang.Thread.start0(Native Method)
> >>>> Sun Jul 08 23:01:28 GMT 2012 ERROR ZooKeeper Server:
> >>>> java.lang.OutOfMemoryError: unable to create new native thread
> >>>>
> >>>>
> >>
> >>
>
>