I got a dead lock in 5.13.3. But the jstack failed to get the stack of the locking threads: Deadlock Detection:
Found one Java-level deadlock: ============================= "ActiveMQ NIO Worker 93810": waiting for ownable synchronizer 0x00007fdafc09e548, (a java/util/concurrent/locks/ReentrantReadWriteLock$NonfairSync), which is held by "ActiveMQ NIO Worker 93322" "ActiveMQ NIO Worker 93322": waiting for ownable synchronizer 0x00007fdab28706b0, (a java/util/concurrent/locks/ReentrantReadWriteLock$NonfairSync), which is held by "ActiveMQ NIO Worker 93810" Found a total of 1 deadlock. Thread 26319: (state = BLOCKED) Error occurred during stack walking: Thread 26318: (state = BLOCKED) - sun.misc.Unsafe.park(boolean, long) @bci=0 (Compiled frame; information may be imprecise) - java.util.concurrent.locks.LockSupport.park(java.lang.Object) @bci=14, line=186 (Compiled frame) - java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt() @bci=1, line=834 (Compiled frame) - java.util.concurrent.locks.AbstractQueuedSynchronizer.doAcquireShared(int) @bci=83, line=964 (Compiled frame) - java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireShared(int) @bci=10, line=1282 (Compiled frame) - java.util.concurrent.locks.ReentrantReadWriteLock$ReadLock.lock() @bci=5, line=731 (Compiled frame) - org.apache.activemq.broker.region.AbstractRegion.lookup(org.apache.activemq.broker.ConnectionContext, org.apache.activemq.command.ActiveMQDestination, boolean) @bci=10, line=541 (Interpreted frame) - org.apache.activemq.broker.region.AbstractRegion.addConsumer(org.apache.activemq.broker.ConnectionContext, org.apache.activemq.command.ConsumerInfo) @bci=65, line=342 (Compiled frame) - org.apache.activemq.broker.region.RegionBroker.addConsumer(org.apache.activemq.broker.ConnectionContext, org.apache.activemq.command.ConsumerInfo) @bci=41, line=427 (Compiled frame) - org.apache.activemq.broker.jmx.ManagedRegionBroker.addConsumer(org.apache.activemq.broker.ConnectionContext, org.apache.activemq.command.ConsumerInfo) @bci=3, line=240 (Compiled frame) - org.apache.activemq.broker.BrokerFilter.addConsumer(org.apache.activemq.broker.ConnectionContext, org.apache.activemq.command.ConsumerInfo) @bci=6, line=103 (Compiled frame) - org.apache.activemq.broker.BrokerFilter.addConsumer(org.apache.activemq.broker.ConnectionContext, org.apache.activemq.command.ConsumerInfo) @bci=6, line=103 (Compiled frame) - org.apache.activemq.broker.MutableBrokerFilter.addConsumer(org.apache.activemq.broker.ConnectionContext, org.apache.activemq.command.ConsumerInfo) @bci=6, line=108 (Compiled frame) - org.apache.activemq.broker.TransportConnection.processAddConsumer(org.apache.activemq.command.ConsumerInfo) @bci=207, line=671 (Compiled frame) - org.apache.activemq.command.ConsumerInfo.visit(org.apache.activemq.state.CommandVisitor) @bci=2, line=351 (Compiled frame) - org.apache.activemq.broker.TransportConnection.service(org.apache.activemq.command.Command) @bci=41, line=338 (Compiled frame) - org.apache.activemq.broker.TransportConnection$1.onCommand(java.lang.Object) @bci=70, line=188 (Compiled frame) - org.apache.activemq.transport.MutexTransport.onCommand(java.lang.Object) @bci=52, line=50 (Compiled frame) - org.apache.activemq.transport.WireFormatNegotiator.onCommand(java.lang.Object) @bci=29, line=125 (Compiled frame) - org.apache.activemq.transport.AbstractInactivityMonitor.onCommand(java.lang.Object) @bci=156, line=300 (Compiled frame) - org.apache.activemq.transport.TransportSupport.doConsume(java.lang.Object) @bci=16, line=83 (Compiled frame) - org.apache.activemq.transport.tcp.TcpTransport.doRun() @bci=7, line=233 (Compiled frame) - org.apache.activemq.transport.tcp.TcpTransport.run() @bci=47, line=215 (Compiled frame) - java.lang.Thread.run() @bci=11, line=745 (Interpreted frame) The jstack output seems is not complete(Don't know why). I grep 93810 or 93322 in the stack log but couldn't find anything except the dead lock info above. -- View this message in context: http://activemq.2283324.n4.nabble.com/Dead-lock-in-5-13-3-tp4715561.html Sent from the ActiveMQ - User mailing list archive at Nabble.com.
