Deadlock between the failover mutex (in AMQConnection.java) and the current_exception_lock (in AMQSession.java) ---------------------------------------------------------------------------------------------------------------
Key: QPID-3214 URL: https://issues.apache.org/jira/browse/QPID-3214 Project: Qpid Issue Type: Bug Components: Java Client Affects Versions: 0.10 Reporter: Rajith Attapattu Assignee: Rajith Attapattu Priority: Critical Fix For: 0.11 As per the following thread dump you can clearly see the deadlock between the failover mutex in AMQConnection.java and the current_exception_lock in AMQSession.java This is a regression and was introduced in rev 985262 Found one Java-level deadlock: ============================= "IoReceiver - localhost/127.0.0.1:15672": waiting to lock monitor 0x0000002ac2ea3b70 (object 0x0000002ab70156b0, a java.lang.Object), which is held by "main" "main": waiting to lock monitor 0x0000002ac28db1b8 (object 0x0000002ab7048d70, a java.lang.Object), which is held by "IoReceiver - localhost/127.0.0.1:15672" Java stack information for the threads listed above: =================================================== "IoReceiver - localhost/127.0.0.1:15672": at org.apache.qpid.client.AMQConnection.exceptionReceived(AMQConnection.java:1297) - waiting to lock<0x0000002ab70156b0> (a java.lang.Object) at org.apache.qpid.client.AMQSession_0_10.setCurrentException(AMQSession_0_10.java:1033) - locked<0x0000002ab7048d70> (a java.lang.Object) at org.apache.qpid.client.AMQSession_0_10.exception(AMQSession_0_10.java:913) at org.apache.qpid.transport.SessionDelegate.executionException(SessionDelegate.java:156) at org.apache.qpid.transport.SessionDelegate.executionException(SessionDelegate.java:32) at org.apache.qpid.transport.ExecutionException.dispatch(ExecutionException.java:112) at org.apache.qpid.transport.SessionDelegate.command(SessionDelegate.java:50) at org.apache.qpid.transport.SessionDelegate.command(SessionDelegate.java:32) at org.apache.qpid.transport.Method.delegate(Method.java:159) at org.apache.qpid.transport.Session.received(Session.java:528) at org.apache.qpid.transport.Connection.dispatch(Connection.java:404) at org.apache.qpid.transport.ConnectionDelegate.handle(ConnectionDelegate.java:64) at org.apache.qpid.transport.ConnectionDelegate.handle(ConnectionDelegate.java:40) at org.apache.qpid.transport.MethodDelegate.executionException(MethodDelegate.java:110) at org.apache.qpid.transport.ExecutionException.dispatch(ExecutionException.java:112) at org.apache.qpid.transport.ConnectionDelegate.command(ConnectionDelegate.java:54) at org.apache.qpid.transport.ConnectionDelegate.command(ConnectionDelegate.java:40) at org.apache.qpid.transport.Method.delegate(Method.java:159) at org.apache.qpid.transport.Connection.received(Connection.java:369) at org.apache.qpid.transport.Connection.received(Connection.java:59) at org.apache.qpid.transport.network.Assembler.emit(Assembler.java:95) at org.apache.qpid.transport.network.Assembler.assemble(Assembler.java:196) at org.apache.qpid.transport.network.Assembler.frame(Assembler.java:129) at org.apache.qpid.transport.network.Frame.delegate(Frame.java:133) at org.apache.qpid.transport.network.Assembler.received(Assembler.java:100) at org.apache.qpid.transport.network.Assembler.received(Assembler.java:42) at org.apache.qpid.transport.network.InputHandler.next(InputHandler.java:187) at org.apache.qpid.transport.network.InputHandler.received(InputHandler.java:103) at org.apache.qpid.transport.network.InputHandler.received(InputHandler.java:42) at org.apache.qpid.transport.network.io.IoReceiver.run(IoReceiver.java:128) at java.lang.Thread.run(Thread.java:619) "main": at org.apache.qpid.client.AMQSession_0_10.setCurrentException(AMQSession_0_10.java:1025) - waiting to lock<0x0000002ab7048d70> (a java.lang.Object) at org.apache.qpid.client.BasicMessageConsumer_0_10.sendCancel(BasicMessageConsumer_0_10.java:193) at org.apache.qpid.client.BasicMessageConsumer.close(BasicMessageConsumer.java:573) - locked<0x0000002ab70156b0> (a java.lang.Object) at org.apache.qpid.client.BasicMessageConsumer.close(BasicMessageConsumer.java:535) at org.apache.qpid.client.AMQQueueBrowser.close(AMQQueueBrowser.java:102) at org.apache.qpid.test.client.QueueBrowserAutoAckTest.testFailoverWithQueueBrowser(QueueBrowserAutoAckTest.java:501) 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 junit.framework.TestCase.runTest(TestCase.java:154) at junit.framework.TestCase.runBare(TestCase.java:127) at org.apache.qpid.test.utils.QpidBrokerTestCase.runBare(QpidBrokerTestCase.java:234) at junit.framework.TestResult$1.protect(TestResult.java:106) at junit.framework.TestResult.runProtected(TestResult.java:124) at junit.framework.TestResult.run(TestResult.java:109) at junit.framework.TestCase.run(TestCase.java:118) at org.apache.qpid.test.utils.QpidTestCase.run(QpidTestCase.java:120) at junit.framework.TestSuite.runTest(TestSuite.java:208) at junit.framework.TestSuite.run(TestSuite.java:203) at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:297) at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.launch(JUnitTestRunner.java:672) at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitTestRunner.java:546) Found 1 deadlock -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira --------------------------------------------------------------------- Apache Qpid - AMQP Messaging Implementation Project: http://qpid.apache.org Use/Interact: mailto:dev-subscr...@qpid.apache.org