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.
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