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https://issues.apache.org/jira/browse/QPID-2693?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13004462#comment-13004462
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Robbie Gemmell commented on QPID-2693:
--------------------------------------
Hi Emmanuel. I took yet another shot at this, as whilst QPID-3010 was
definitely causing one of the issues you noted above there was obviously
another. Can you run your test again after adding this to your message(Session
session, MessageTransfer xfr) listener method:
session.processed(xfr);
> Broker instability with the topic exchange
> ------------------------------------------
>
> Key: QPID-2693
> URL: https://issues.apache.org/jira/browse/QPID-2693
> Project: Qpid
> Issue Type: Bug
> Components: Java Broker
> Affects Versions: 0.7, 0.8
> Environment: java version "1.6.0_12"
> Java(TM) SE Runtime Environment (build 1.6.0_12-b04)
> Java HotSpot(TM) 64-Bit Server VM (build 11.2-b01, mixed mode)
> Linux 2.6.24-11-pve #1 SMP PREEMPT Fri May 14 09:28:08 CEST 2010 x86_64
> GNU/Linux
> Reporter: Emmanuel Bourg
> Assignee: Robbie Gemmell
> Priority: Critical
> Fix For: 0.9
>
> Attachments: qpid-dump.txt, qpid-log.txt
>
>
> I've noticed an instability of the Java broker when sending a high volume of
> messages to the topic exchange. The messages are non acked, non durable.
> After about 15 minutes the messages can no longer be dispatched and the
> client gets this exception:
> org.apache.qpid.transport.SessionException: timed out waiting for sync:
> complete = 77824, point = 77825
> at org.apache.qpid.transport.Session.sync(Session.java:743)
> at org.apache.qpid.transport.Session.sync(Session.java:712)
> at org.apache.qpid.transport.Session.invoke(Session.java:672)
> at org.apache.qpid.transport.Session.invoke(Session.java:518)
> at
> org.apache.qpid.transport.SessionInvoker.messageTransfer(SessionInvoker.java:96)
> at org.apache.qpid.transport.Session.messageTransfer(Session.java:880)
> And in the server log I get these exceptions:
> 2010-06-25 02:48:48,005 [ERROR] Exception thrown and no ProtocolEngine to
> handle it
> org.apache.qpid.transport.SessionException: timed out waiting for completion
> at org.apache.qpid.transport.Session.invoke(Session.java:635)
> at
> org.apache.qpid.server.transport.ServerSession.sendMessage(ServerSession.java:180)
> at
> org.apache.qpid.server.subscription.Subscription_0_10.send(Subscription_0_10.java:573)
> at
> org.apache.qpid.server.queue.SimpleAMQQueue.deliverMessage(SimpleAMQQueue.java:715)
> at
> org.apache.qpid.server.queue.SimpleAMQQueue.deliverToSubscription(SimpleAMQQueue.java:658)
> at
> org.apache.qpid.server.queue.SimpleAMQQueue.enqueue(SimpleAMQQueue.java:611)
> at
> org.apache.qpid.server.queue.SimpleAMQQueue.enqueue(SimpleAMQQueue.java:536)
> at
> org.apache.qpid.server.transport.ServerSession$1.postCommit(ServerSession.java:157)
> at
> org.apache.qpid.server.txn.AutoCommitTransaction.enqueue(AutoCommitTransaction.java:151)
> at
> org.apache.qpid.server.transport.ServerSession.enqueue(ServerSession.java:146)
> at
> org.apache.qpid.server.transport.ServerSessionDelegate.messageTransfer(ServerSessionDelegate.java:287)
> at
> org.apache.qpid.server.transport.ServerSessionDelegate.messageTransfer(ServerSessionDelegate.java:96)
> at
> org.apache.qpid.transport.MessageTransfer.dispatch(MessageTransfer.java:103)
> at
> org.apache.qpid.transport.SessionDelegate.command(SessionDelegate.java:46)
> at
> org.apache.qpid.server.transport.ServerSessionDelegate.command(ServerSessionDelegate.java:110)
> at
> org.apache.qpid.server.transport.ServerSessionDelegate.command(ServerSessionDelegate.java:96)
> at org.apache.qpid.transport.Method.delegate(Method.java:159)
> at org.apache.qpid.transport.Session.received(Session.java:487)
> at org.apache.qpid.transport.Connection.dispatch(Connection.java:377)
> 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.messageTransfer(MethodDelegate.java:113)
> at
> org.apache.qpid.transport.MessageTransfer.dispatch(MessageTransfer.java:103)
> 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:342)
> at org.apache.qpid.transport.Connection.received(Connection.java:55)
> at org.apache.qpid.transport.network.Assembler.emit(Assembler.java:98)
> at
> org.apache.qpid.transport.network.Assembler.assemble(Assembler.java:220)
> at
> org.apache.qpid.transport.network.Assembler.frame(Assembler.java:132)
> at org.apache.qpid.transport.network.Frame.delegate(Frame.java:133)
> at
> org.apache.qpid.transport.network.Assembler.received(Assembler.java:103)
> at
> org.apache.qpid.transport.network.Assembler.received(Assembler.java:48)
> 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.server.protocol.MultiVersionProtocolEngine.received(MultiVersionProtocolEngine.java:101)
> at
> org.apache.qpid.server.protocol.MultiVersionProtocolEngine.received(MultiVersionProtocolEngine.java:36)
> at
> org.apache.qpid.transport.network.mina.MINANetworkDriver.messageReceived(MINANetworkDriver.java:337)
> at
> org.apache.mina.common.support.AbstractIoFilterChain$TailFilter.messageReceived(AbstractIoFilterChain.java:703)
> at
> org.apache.mina.common.support.AbstractIoFilterChain.callNextMessageReceived(AbstractIoFilterChain.java:362)
> at
> org.apache.mina.common.support.AbstractIoFilterChain.access$1200(AbstractIoFilterChain.java:54)
> at
> org.apache.mina.common.support.AbstractIoFilterChain$EntryImpl$1.messageReceived(AbstractIoFilterChain.java:800)
> at
> org.apache.mina.filter.executor.ExecutorFilter.processEvent(ExecutorFilter.java:243)
> at
> org.apache.mina.filter.executor.ExecutorFilter$ProcessEventsRunnable.run(ExecutorFilter.java:305)
> at
> edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:665)
> at
> edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:690)
> at java.lang.Thread.run(Thread.java:619)
> 2010-06-25 02:48:48,005 [ERROR] Exception thrown and no ProtocolEngine to
> handle it
> java.lang.NullPointerException
> at
> org.apache.qpid.transport.network.Assembler.assemble(Assembler.java:218)
> at
> org.apache.qpid.transport.network.Assembler.frame(Assembler.java:132)
> at org.apache.qpid.transport.network.Frame.delegate(Frame.java:133)
> at
> org.apache.qpid.transport.network.Assembler.received(Assembler.java:103)
> at
> org.apache.qpid.transport.network.Assembler.received(Assembler.java:48)
> at
> org.apache.qpid.transport.network.InputHandler.next(InputHandler.java:187)
> at
> org.apache.qpid.transport.network.InputHandler.received(InputHandler.java:113)
> at
> org.apache.qpid.transport.network.InputHandler.received(InputHandler.java:42)
> at
> org.apache.qpid.server.protocol.MultiVersionProtocolEngine.received(MultiVersionProtocolEngine.java:101)
> at
> org.apache.qpid.server.protocol.MultiVersionProtocolEngine.received(MultiVersionProtocolEngine.java:36)
> at
> org.apache.qpid.transport.network.mina.MINANetworkDriver.messageReceived(MINANetworkDriver.java:337)
> at
> org.apache.mina.common.support.AbstractIoFilterChain$TailFilter.messageReceived(AbstractIoFilterChain.java:703)
> at
> org.apache.mina.common.support.AbstractIoFilterChain.callNextMessageReceived(AbstractIoFilterChain.java:362)
> at
> org.apache.mina.common.support.AbstractIoFilterChain.access$1200(AbstractIoFilterChain.java:54)
> at
> org.apache.mina.common.support.AbstractIoFilterChain$EntryImpl$1.messageReceived(AbstractIoFilterChain.java:800)
> at
> org.apache.mina.filter.executor.ExecutorFilter.processEvent(ExecutorFilter.java:243)
> at
> org.apache.mina.filter.executor.ExecutorFilter$ProcessEventsRunnable.run(ExecutorFilter.java:305)
> at
> edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:665)
> at
> edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:690)
> at java.lang.Thread.run(Thread.java:619)
> At this point the client can reconnect to the broker, but the messages are no
> longer dispatched. The broker has to be restarted.
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