If so, an upgrade to 5.13.4 or 5.14.0 would be all that's needed. On Aug 17, 2016 7:08 AM, "Timothy Bish" <tabish...@gmail.com> wrote:
> > Could be this. > https://issues.apache.org/jira/browse/AMQ-6275 > > On 08/17/2016 09:03 AM, Tim Bain wrote: > >> The stack trace tells us one of the locks, so there should be a pretty >> limited number of other locks that the thread in question acquires, so the >> search space shouldn't be too large. It's not guaranteed that someone >> will >> be able to figure it out, but I think the odds are good. >> >> On Aug 17, 2016 6:55 AM, "Christopher Shannon" < >> christopher.l.shan...@gmail.com> wrote: >> >> This will be kind of tricky to figure out because your jstack only printed >>> out the stack trace for one of the threads. Without the other thread is >>> will be hard to know exactly what caused the deadlock. >>> >>> On Wed, Aug 17, 2016 at 8:48 AM, Tim Bain <tb...@alumni.duke.edu> wrote: >>> >>> Please submit a bug in JIRA; it should be possible for someone to figure >>>> out the root cause based on the one stack trace you did get. >>>> >>>> Tim >>>> >>>> On Aug 16, 2016 9:45 PM, "RuralHunter" <ruralhun...@gmail.com> wrote: >>>> >>>> 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. >>>>> >>>>> > > -- > Tim Bish > twitter: @tabish121 > blog: http://timbish.blogspot.com/ > >
