[jboss-jira] [JBoss JIRA] Closed: (JGRP-571) all threads are daemon
Bela Ban (JIRA)
jira-events at lists.jboss.org
Sat Sep 15 07:37:11 EDT 2007
[ http://jira.jboss.com/jira/browse/JGRP-571?page=all ]
Bela Ban closed JGRP-571.
-------------------------
Resolution: Done
made daemon threads in UDP/TCP non-daemons
> all threads are daemon
> ----------------------
>
> Key: JGRP-571
> URL: http://jira.jboss.com/jira/browse/JGRP-571
> Project: JGroups
> Issue Type: Bug
> Affects Versions: 2.5
> Reporter: Michael Newcomb
> Assigned To: Bela Ban
> Fix For: 2.6
>
>
> Create and join a channel, then LockSupport.park() in main.
> Dump out all Threads (ctrl-break) and they are all daemon.
> Thread Pool threads get marked daemon because they are created from the IO threads (which are daemon).
> Recommend searching for setDaemon(true) and determining if all uses are correct.
> Caused my program (which is event/message driven) to immediately exit.
> "Incoming Thread,137.161.130.87:1956" daemon prio=10 tid=0x033ad400 nid=0x2378 waiting on condition [0x040cf000..0x040cfc94]
> java.lang.Thread.State: WAITING (parking)
> at sun.misc.Unsafe.park(Native Method)
> - parking to wait for <0x24107308> (a java.util.concurrent.SynchronousQueue$TransferStack)
> at java.util.concurrent.locks.LockSupport.park(LockSupport.java:158)
> at java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:422)
> at java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:323)
> at java.util.concurrent.SynchronousQueue.take(SynchronousQueue.java:857)
> at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:946)
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:906)
> at java.lang.Thread.run(Thread.java:619)
> "MERGE2.FindSubgroups thread (channel=iewtpt, local_addr=137.161.130.87:1956)" daemon prio=6 tid=0x033a9800 nid=0xe70 waiting on condition [0x0407f000..0x0407fd14]
> java.lang.Thread.State: TIMED_WAITING (sleeping)
> at java.lang.Thread.sleep(Native Method)
> at org.jgroups.util.Util.sleep(Util.java:851)
> at org.jgroups.protocols.MERGE2$FindSubgroups.run(MERGE2.java:265)
> at java.lang.Thread.run(Thread.java:619)
> "OOB Thread,137.161.130.87:1956" daemon prio=10 tid=0x0337b400 nid=0x24bc waiting on condition [0x0411f000..0x0411fd94]
> java.lang.Thread.State: WAITING (parking)
> at sun.misc.Unsafe.park(Native Method)
> - parking to wait for <0x241000f0> (a java.util.concurrent.SynchronousQueue$TransferStack)
> at java.util.concurrent.locks.LockSupport.park(LockSupport.java:158)
> at java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:422)
> at java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:323)
> at java.util.concurrent.SynchronousQueue.take(SynchronousQueue.java:857)
> at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:946)
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:906)
> at java.lang.Thread.run(Thread.java:619)
> "ServerSocket acceptor thread (channel=iewtpt)" daemon prio=6 tid=0x033a8800 nid=0x1e38 runnable [0x0402f000..0x0402fb14]
> java.lang.Thread.State: RUNNABLE
> at java.net.PlainSocketImpl.socketAccept(Native Method)
> at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:384)
> - locked <0x24100258> (a java.net.SocksSocketImpl)
> at java.net.ServerSocket.implAccept(ServerSocket.java:450)
> at java.net.ServerSocket.accept(ServerSocket.java:421)
> at org.jgroups.protocols.FD_SOCK$ServerSocketHandler.run(FD_SOCK.java:1073)
> at java.lang.Thread.run(Thread.java:619)
> "UDP mcast receiver,137.161.130.87:1956" daemon prio=10 tid=0x0303ec00 nid=0x2170 runnable [0x03fdf000..0x03fdfc14]
> java.lang.Thread.State: RUNNABLE
> at java.net.PlainDatagramSocketImpl.receive0(Native Method)
> - locked <0x24100418> (a java.net.PlainDatagramSocketImpl)
> at java.net.PlainDatagramSocketImpl.receive(PlainDatagramSocketImpl.java:136)
> - locked <0x24100418> (a java.net.PlainDatagramSocketImpl)
> at java.net.DatagramSocket.receive(DatagramSocket.java:712)
> - locked <0x24100458> (a java.net.DatagramPacket)
> - locked <0x24100478> (a java.net.MulticastSocket)
> at org.jgroups.protocols.UDP.run(UDP.java:247)
> at java.lang.Thread.run(Thread.java:619)
> "UDP ucast receiver,137.161.130.87:1956" daemon prio=6 tid=0x02ff3000 nid=0x2734 runnable [0x03f8f000..0x03f8fb94]
> java.lang.Thread.State: RUNNABLE
> at java.net.PlainDatagramSocketImpl.receive0(Native Method)
> - locked <0x24100680> (a java.net.PlainDatagramSocketImpl)
> at java.net.PlainDatagramSocketImpl.receive(PlainDatagramSocketImpl.java:136)
> - locked <0x24100680> (a java.net.PlainDatagramSocketImpl)
> at java.net.DatagramSocket.receive(DatagramSocket.java:712)
> - locked <0x241006c0> (a java.net.DatagramPacket)
> - locked <0x241006e0> (a java.net.DatagramSocket)
> at org.jgroups.protocols.UDP$UcastReceiver.run(UDP.java:916)
> at java.lang.Thread.run(Thread.java:619)
> "main" prio=6 tid=0x001ca000 nid=0x208 waiting on condition [0x002af000..0x002afe54]
> java.lang.Thread.State: WAITING (parking)
> at sun.misc.Unsafe.park(Native Method)
> at java.util.concurrent.locks.LockSupport.park(LockSupport.java:283)
> at HostNode.main(HostNode.java:607)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at com.intellij.rt.execution.application.AppMain.main(AppMain.java:90)
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