Deadlock between the failover mutex (in AMQConnection.java) and the
current_exception_lock (in AMQSession.java)
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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
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