2 Replies Latest reply on Mar 31, 2009 10:03 AM by jmesnil

    JBM 2 Server does not shutdown cleanly

    jmesnil
    jmesnil Mar 31, 2009 9:23 AM

      while playing with the examples, I found that starting a JBMBootstrapServer and shutting it down does not leave the JVM

       System.setProperty("java.naming.factory.initial", "org.jnp.interfaces.NamingContextFactory");
 System.setProperty("java.naming.factory.url.pkgs", "org.jboss.naming:org.jnp.interfaces, value");

 JBMBootstrapServer server = new JBMBootstrapServer(new String[] {"jbm-example-beans.xml"});
 server.run();
 server.shutDown();


      When I dump the threads, it gives: 

      Full thread dump Java HotSpot(TM) Client VM (1.5.0_16-133 mixed mode):

"DestroyJavaVM" prio=5 tid=0x01001890 nid=0xb0801000 waiting on condition [0x00000000..0xb0800060]

"NamingBootstrap Pool(1)-1" daemon prio=5 tid=0x010453e0 nid=0x846200 waiting on condition [0xb1011000..0xb1011d90]
 at sun.misc.Unsafe.park(Native Method)
 at java.util.concurrent.locks.LockSupport.park(LockSupport.java:118)
 at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:1841)
 at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:359)
 at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:470)
 at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:674)
 at java.lang.Thread.run(Thread.java:613)

"GC Daemon" daemon prio=2 tid=0x010432e0 nid=0x845400 in Object.wait() [0xb0f90000..0xb0f90d90]
 at java.lang.Object.wait(Native Method)
 - waiting on <0x05b92430> (a sun.misc.GC$LatencyLock)
 at sun.misc.GC$Daemon.run(GC.java:100)
 - locked <0x05b92430> (a sun.misc.GC$LatencyLock)

"RMI Reaper" prio=5 tid=0x01042ea0 nid=0x82a200 in Object.wait() [0xb0f0f000..0xb0f0fd90]
 at java.lang.Object.wait(Native Method)
 - waiting on <0x05b92438> (a java.lang.ref.ReferenceQueue$Lock)
 at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:120)
 - locked <0x05b92438> (a java.lang.ref.ReferenceQueue$Lock)
 at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:136)
 at sun.rmi.transport.ObjectTable$Reaper.run(ObjectTable.java:336)
 at java.lang.Thread.run(Thread.java:613)

"Timer-0" daemon prio=5 tid=0x010421a0 nid=0x829400 in Object.wait() [0xb0e8e000..0xb0e8ed90]
 at java.lang.Object.wait(Native Method)
 - waiting on <0x05b92468> (a java.util.TaskQueue)
 at java.lang.Object.wait(Object.java:474)
 at java.util.TimerThread.mainLoop(Timer.java:483)
 - locked <0x05b92468> (a java.util.TaskQueue)
 at java.util.TimerThread.run(Timer.java:462)

"RMI TCP Accept-1098" daemon prio=5 tid=0x01041e20 nid=0x828600 runnable [0xb0e0d000..0xb0e0dd90]
 at java.net.PlainSocketImpl.socketAccept(Native Method)
 at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:384)
 - locked <0x05b92488> (a java.net.SocksSocketImpl)
 at java.net.ServerSocket.implAccept(ServerSocket.java:450)
 at java.net.ServerSocket.accept(ServerSocket.java:421)
 at sun.rmi.transport.tcp.TCPTransport.run(TCPTransport.java:340)
 at java.lang.Thread.run(Thread.java:613)

"Low Memory Detector" daemon prio=5 tid=0x01010bd0 nid=0x809800 runnable [0x00000000..0x00000000]

"CompilerThread0" daemon prio=9 tid=0x0100fce0 nid=0x808a00 waiting on condition [0x00000000..0xb0c8a7d8]

"Signal Dispatcher" daemon prio=9 tid=0x0100f990 nid=0x807c00 waiting on condition [0x00000000..0x00000000]

"JDWP Command Reader" daemon prio=5 tid=0x0100dc10 nid=0x806e00 runnable [0x00000000..0x00000000]

"JDWP Event Helper Thread" daemon prio=5 tid=0x0100d120 nid=0x816200 runnable [0x00000000..0x00000000]

"JDWP Transport Listener: dt_socket" daemon prio=5 tid=0x0100c3c0 nid=0x815400 runnable [0x00000000..0xb0a86ae0]

"Finalizer" daemon prio=8 tid=0x01007b80 nid=0x81be00 in Object.wait() [0xb0a05000..0xb0a05d90]
 at java.lang.Object.wait(Native Method)
 - waiting on <0x05a7fe88> (a java.lang.ref.ReferenceQueue$Lock)
 at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:120)
 - locked <0x05a7fe88> (a java.lang.ref.ReferenceQueue$Lock)
 at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:136)
 at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:159)

"Reference Handler" daemon prio=10 tid=0x010077a0 nid=0x81a400 in Object.wait() [0xb0984000..0xb0984d90]
 at java.lang.Object.wait(Native Method)
 - waiting on <0x05a7feb0> (a java.lang.ref.Reference$Lock)
 at java.lang.Object.wait(Object.java:474)
 at java.lang.ref.Reference$ReferenceHandler.run(Reference.java:116)
 - locked <0x05a7feb0> (a java.lang.ref.Reference$Lock)

"VM Thread" prio=9 tid=0x01006ef0 nid=0x819600 runnable

"VM Periodic Task Thread" prio=9 tid=0x010116c0 nid=0x81fc00 waiting on condition

"Exception Catcher Thread" prio=10 tid=0x01001ab0 nid=0x80d800 runnable


      all remainging threads are daemon except for "RMI Reaper".
      It's also strange that "RMI TCP Accept-1098" is still alive even after shutting down the JNDI naming server

      • 322 Views
      • Tags:
        • 1. Re: JBM 2 Server does not shutdown cleanly
          timfox
          timfox Mar 31, 2009 9:28 AM (in response to jmesnil)

          Try starting up the server without the jboss messaging service to see if it's related to just the jndi server.

            • Actions
          • 2. Re: JBM 2 Server does not shutdown cleanly
            jmesnil
            jmesnil Mar 31, 2009 10:03 AM (in response to jmesnil)

             

            "timfox" wrote:
            Try starting up the server without the jboss messaging service to see if it's related to just the jndi server.


            the JNDI server is indeed the guilty part: 

             public static void main(String[] args) throws Exception
 {

 System.setProperty("java.naming.factory.initial", "org.jnp.interfaces.NamingContextFactory");
 System.setProperty("java.naming.factory.url.pkgs", "org.jboss.naming:org.jnp.interfaces, value");

 NamingBeanImpl namingInfo = new NamingBeanImpl();
 namingInfo.start();
 org.jnp.server.Main jndiServer = new org.jnp.server.Main();
 jndiServer.setNamingInfo(namingInfo);
 jndiServer.setPort(1099);
 jndiServer.setBindAddress("localhost");
 jndiServer.setRmiPort(1098);
 jndiServer.setRmiBindAddress("localhost");
 jndiServer.start();

 System.out.println("STARTED");

 jndiServer.stop();
 namingInfo.stop();
 }


            I've asked about it on #jboss and I'll raise a JIRA issue if I don't have a reply.


              • Actions