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Posted to dev@activemq.apache.org by "William Leibzon (JIRA)" <ji...@apache.org> on 2006/11/17 22:46:02 UTC
[jira] Created: (AMQ-1059) ActiveMQ Task/Transport Deadlock when
using Stomp
ActiveMQ Task/Transport Deadlock when using Stomp
-------------------------------------------------
Key: AMQ-1059
URL: https://issues.apache.org/activemq/browse/AMQ-1059
Project: ActiveMQ
Issue Type: Bug
Components: Transport
Affects Versions: 4.0.2
Environment: Linux Redhat EL3, Java 1.4.2
Reporter: William Leibzon
This happened after about a day running monitoring script that uses Perl stomp client to connect to JMS.
Found one Java-level deadlock:
=============================
"ActiveMQ Task":
waiting to lock monitor 0x0807ae74 (object 0x7ee3a898, a java.lang.Object),
which is held by "ActiveMQ Transport: tcp:///10.1.111.14:60270"
"ActiveMQ Transport: tcp:///10.1.111.14:60270":
waiting to lock monitor 0x0807b474 (object 0x7ee3caa8, a java.lang.Object),
which is held by "ActiveMQ Task"
Java stack information for the threads listed above:
===================================================
"ActiveMQ Task":
at org.apache.activemq.transport.stomp.StompTransportFilter.sendToActiveMQ(StompTransportFilter.java:70)
- waiting to lock <0x7ee3a898> (a java.lang.Object)
at org.apache.activemq.transport.stomp.StompSubscription.onMessageDispatch(StompSubscription.java:71)
at org.apache.activemq.transport.stomp.ProtocolConverter.onActiveMQCommad(ProtocolConverter.java:476)
at org.apache.activemq.transport.stomp.StompTransportFilter.oneway(StompTransportFilter.java:52)
at org.apache.activemq.transport.InactivityMonitor.oneway(InactivityMonitor.java:142)
at org.apache.activemq.transport.MutexTransport.oneway(MutexTransport.java:45)
- locked <0x7ee3caa8> (a java.lang.Object)
at org.apache.activemq.transport.ResponseCorrelator.oneway(ResponseCorrelator.java:59)
at org.apache.activemq.broker.TransportConnection.dispatch(TransportConnection.java:215)
at org.apache.activemq.broker.AbstractConnection.processDispatch(AbstractConnection.java:722)
at org.apache.activemq.broker.AbstractConnection.iterate(AbstractConnection.java:738)
at org.apache.activemq.thread.PooledTaskRunner.runTask(PooledTaskRunner.java:111)
at org.apache.activemq.thread.PooledTaskRunner.access$100(PooledTaskRunner.java:26)
at org.apache.activemq.thread.PooledTaskRunner$1.run(PooledTaskRunner.java:44)
at edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:650)
at java.lang.Thread.run(Unknown Source)
"ActiveMQ Transport: tcp:///10.1.111.14:60270":
at org.apache.activemq.transport.MutexTransport.oneway(MutexTransport.java:45)
- waiting to lock <0x7ee3caa8> (a java.lang.Object)
at org.apache.activemq.transport.ResponseCorrelator.oneway(ResponseCorrelator.java:59)
at org.apache.activemq.broker.TransportConnection.dispatch(TransportConnection.java:215)
at org.apache.activemq.broker.TransportConnection$1.onCommand(TransportConnection.java:63)
at org.apache.activemq.transport.ResponseCorrelator.onCommand(ResponseCorrelator.java:92)
at org.apache.activemq.transport.TransportFilter.onCommand(TransportFilter.java:67)
at org.apache.activemq.transport.InactivityMonitor.onCommand(InactivityMonitor.java:123)
at org.apache.activemq.transport.stomp.StompTransportFilter.sendToActiveMQ(StompTransportFilter.java:70)
- locked <0x7ee3a898> (a java.lang.Object)
at org.apache.activemq.transport.stomp.ProtocolConverter.sendToActiveMQ(ProtocolConverter.java:112)
at org.apache.activemq.transport.stomp.ProtocolConverter.onStompSend(ProtocolConverter.java:197)
at org.apache.activemq.transport.stomp.ProtocolConverter.onStompCommad(ProtocolConverter.java:132)
at org.apache.activemq.transport.stomp.StompTransportFilter.onCommand(StompTransportFilter.java:60)
at org.apache.activemq.transport.TransportSupport.doConsume(TransportSupport.java:88)
at org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:137)
at java.lang.Thread.run(Unknown Source)
Found 12 deadlocks
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