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Posted to dev@activemq.apache.org by "Nicky Sandhu (JIRA)" <ji...@apache.org> on 2007/10/16 18:18:23 UTC
[jira] Created: (AMQ-1467) Deadlock between
FilePendingMessageCursor and MemoryUsage
Deadlock between FilePendingMessageCursor and MemoryUsage
---------------------------------------------------------
Key: AMQ-1467
URL: https://issues.apache.org/activemq/browse/AMQ-1467
Project: ActiveMQ
Issue Type: Bug
Components: Broker
Reporter: Nicky Sandhu
Priority: Critical
Deadlock detected by jconsole. Fairly easy to reproduce with a maven-perf-test-plugin using journaled jdbc persistence. Using the latest 5.0-SNAPSHOT build
ActiveMQ Task
Name: ActiveMQ Task
State: BLOCKED on java.lang.Object@1ba1894 owned by: ActiveMQ Transport: tcp:///167.235.7.27:4215
Total blocked: 1,001 Total waited: 1,002
Stack trace:
org.apache.activemq.usage.MemoryUsage.increaseUsage(MemoryUsage.java:126)
org.apache.activemq.usage.MemoryUsage.increaseUsage(MemoryUsage.java:122)
org.apache.activemq.command.Message.incrementReferenceCount(Message.java:585)
org.apache.activemq.broker.region.cursors.FilePendingMessageCursor.next(FilePendingMessageCursor.java:198)
- locked org.apache.activemq.broker.region.cursors.FilePendingMessageCursor@1347d75
org.apache.activemq.broker.region.cursors.StoreQueueCursor.next(StoreQueueCursor.java:129)
- locked org.apache.activemq.broker.region.cursors.StoreQueueCursor@14f3d22
org.apache.activemq.broker.region.Queue.buildList(Queue.java:1020)
- locked org.apache.activemq.broker.region.cursors.StoreQueueCursor@14f3d22
- locked org.apache.activemq.broker.region.Queue@1b2591c
org.apache.activemq.broker.region.Queue.doPageIn(Queue.java:1002)
org.apache.activemq.broker.region.Queue.pageInMessages(Queue.java:1065)
org.apache.activemq.broker.region.Queue.iterate(Queue.java:938)
org.apache.activemq.thread.PooledTaskRunner.runTask(PooledTaskRunner.java:118)
org.apache.activemq.thread.PooledTaskRunner$1.run(PooledTaskRunner.java:42)
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
java.lang.Thread.run(Thread.java:619)
ActiveMQ Transport: tcp://....:xxxx
Name: ActiveMQ Transport: tcp:///167.235.7.27:4215
State: BLOCKED on org.apache.activemq.broker.region.cursors.FilePendingMessageCursor@1347d75 owned by: ActiveMQ Task
Total blocked: 46 Total waited: 2
Stack trace:
org.apache.activemq.broker.region.cursors.FilePendingMessageCursor.onUsageChanged(FilePendingMessageCursor.java:260)
org.apache.activemq.usage.Usage.fireEvent(Usage.java:254)
org.apache.activemq.usage.Usage.setPercentUsage(Usage.java:224)
- locked java.lang.Object@1ba1894
org.apache.activemq.usage.MemoryUsage.decreaseUsage(MemoryUsage.java:149)
org.apache.activemq.usage.MemoryUsage.decreaseUsage(MemoryUsage.java:142)
org.apache.activemq.command.Message.decrementReferenceCount(Message.java:601)
- locked org.apache.activemq.command.ActiveMQTextMessage@960b08
org.apache.activemq.broker.region.IndirectMessageReference.drop(IndirectMessageReference.java:137)
- locked org.apache.activemq.broker.region.IndirectMessageReference@ae7918
org.apache.activemq.broker.region.QueueSubscription.acknowledge(QueueSubscription.java:56)
org.apache.activemq.broker.region.PrefetchSubscription.acknowledge(PrefetchSubscription.java:193)
- locked org.apache.activemq.broker.region.QueueSubscription@1e13a2c
org.apache.activemq.broker.region.AbstractRegion.acknowledge(AbstractRegion.java:340)
org.apache.activemq.broker.region.RegionBroker.acknowledge(RegionBroker.java:427)
org.apache.activemq.broker.TransactionBroker.acknowledge(TransactionBroker.java:194)
org.apache.activemq.broker.BrokerFilter.acknowledge(BrokerFilter.java:73)
org.apache.activemq.broker.BrokerFilter.acknowledge(BrokerFilter.java:73)
org.apache.activemq.broker.MutableBrokerFilter.acknowledge(MutableBrokerFilter.java:87)
org.apache.activemq.broker.TransportConnection.processMessageAck(TransportConnection.java:478)
org.apache.activemq.command.MessageAck.visit(MessageAck.java:196)
org.apache.activemq.broker.TransportConnection.service(TransportConnection.java:319)
org.apache.activemq.broker.TransportConnection$1.onCommand(TransportConnection.java:216)
org.apache.activemq.transport.TransportFilter.onCommand(TransportFilter.java:67)
org.apache.activemq.transport.WireFormatNegotiator.onCommand(WireFormatNegotiator.java:134)
org.apache.activemq.transport.InactivityMonitor.onCommand(InactivityMonitor.java:124)
- locked org.apache.activemq.transport.InactivityMonitor$1@10e2558
org.apache.activemq.transport.TransportSupport.doConsume(TransportSupport.java:83)
org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:183)
org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:170)
java.lang.Thread.run(Thread.java:619)
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[jira] Resolved: (AMQ-1467) Deadlock between
FilePendingMessageCursor and MemoryUsage
Posted by "Rob Davies (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/activemq/browse/AMQ-1467?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Rob Davies resolved AMQ-1467.
-----------------------------
Resolution: Fixed
svn revision 586581
> Deadlock between FilePendingMessageCursor and MemoryUsage
> ---------------------------------------------------------
>
> Key: AMQ-1467
> URL: https://issues.apache.org/activemq/browse/AMQ-1467
> Project: ActiveMQ
> Issue Type: Bug
> Components: Broker
> Reporter: Nicky Sandhu
> Assignee: Rob Davies
> Priority: Critical
> Fix For: 5.0.0
>
> Attachments: patch-usage-fireevent.txt
>
>
> Deadlock detected by jconsole. Fairly easy to reproduce with a maven-perf-test-plugin using journaled jdbc persistence. Using the latest 5.0-SNAPSHOT build
> ActiveMQ Task
> Name: ActiveMQ Task
> State: BLOCKED on java.lang.Object@1ba1894 owned by: ActiveMQ Transport: tcp:///167.235.7.27:4215
> Total blocked: 1,001 Total waited: 1,002
> Stack trace:
> org.apache.activemq.usage.MemoryUsage.increaseUsage(MemoryUsage.java:126)
> org.apache.activemq.usage.MemoryUsage.increaseUsage(MemoryUsage.java:122)
> org.apache.activemq.command.Message.incrementReferenceCount(Message.java:585)
> org.apache.activemq.broker.region.cursors.FilePendingMessageCursor.next(FilePendingMessageCursor.java:198)
> - locked org.apache.activemq.broker.region.cursors.FilePendingMessageCursor@1347d75
> org.apache.activemq.broker.region.cursors.StoreQueueCursor.next(StoreQueueCursor.java:129)
> - locked org.apache.activemq.broker.region.cursors.StoreQueueCursor@14f3d22
> org.apache.activemq.broker.region.Queue.buildList(Queue.java:1020)
> - locked org.apache.activemq.broker.region.cursors.StoreQueueCursor@14f3d22
> - locked org.apache.activemq.broker.region.Queue@1b2591c
> org.apache.activemq.broker.region.Queue.doPageIn(Queue.java:1002)
> org.apache.activemq.broker.region.Queue.pageInMessages(Queue.java:1065)
> org.apache.activemq.broker.region.Queue.iterate(Queue.java:938)
> org.apache.activemq.thread.PooledTaskRunner.runTask(PooledTaskRunner.java:118)
> org.apache.activemq.thread.PooledTaskRunner$1.run(PooledTaskRunner.java:42)
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
> java.lang.Thread.run(Thread.java:619)
> ActiveMQ Transport: tcp://....:xxxx
> Name: ActiveMQ Transport: tcp:///167.235.7.27:4215
> State: BLOCKED on org.apache.activemq.broker.region.cursors.FilePendingMessageCursor@1347d75 owned by: ActiveMQ Task
> Total blocked: 46 Total waited: 2
> Stack trace:
> org.apache.activemq.broker.region.cursors.FilePendingMessageCursor.onUsageChanged(FilePendingMessageCursor.java:260)
> org.apache.activemq.usage.Usage.fireEvent(Usage.java:254)
> org.apache.activemq.usage.Usage.setPercentUsage(Usage.java:224)
> - locked java.lang.Object@1ba1894
> org.apache.activemq.usage.MemoryUsage.decreaseUsage(MemoryUsage.java:149)
> org.apache.activemq.usage.MemoryUsage.decreaseUsage(MemoryUsage.java:142)
> org.apache.activemq.command.Message.decrementReferenceCount(Message.java:601)
> - locked org.apache.activemq.command.ActiveMQTextMessage@960b08
> org.apache.activemq.broker.region.IndirectMessageReference.drop(IndirectMessageReference.java:137)
> - locked org.apache.activemq.broker.region.IndirectMessageReference@ae7918
> org.apache.activemq.broker.region.QueueSubscription.acknowledge(QueueSubscription.java:56)
> org.apache.activemq.broker.region.PrefetchSubscription.acknowledge(PrefetchSubscription.java:193)
> - locked org.apache.activemq.broker.region.QueueSubscription@1e13a2c
> org.apache.activemq.broker.region.AbstractRegion.acknowledge(AbstractRegion.java:340)
> org.apache.activemq.broker.region.RegionBroker.acknowledge(RegionBroker.java:427)
> org.apache.activemq.broker.TransactionBroker.acknowledge(TransactionBroker.java:194)
> org.apache.activemq.broker.BrokerFilter.acknowledge(BrokerFilter.java:73)
> org.apache.activemq.broker.BrokerFilter.acknowledge(BrokerFilter.java:73)
> org.apache.activemq.broker.MutableBrokerFilter.acknowledge(MutableBrokerFilter.java:87)
> org.apache.activemq.broker.TransportConnection.processMessageAck(TransportConnection.java:478)
> org.apache.activemq.command.MessageAck.visit(MessageAck.java:196)
> org.apache.activemq.broker.TransportConnection.service(TransportConnection.java:319)
> org.apache.activemq.broker.TransportConnection$1.onCommand(TransportConnection.java:216)
> org.apache.activemq.transport.TransportFilter.onCommand(TransportFilter.java:67)
> org.apache.activemq.transport.WireFormatNegotiator.onCommand(WireFormatNegotiator.java:134)
> org.apache.activemq.transport.InactivityMonitor.onCommand(InactivityMonitor.java:124)
> - locked org.apache.activemq.transport.InactivityMonitor$1@10e2558
> org.apache.activemq.transport.TransportSupport.doConsume(TransportSupport.java:83)
> org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:183)
> org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:170)
> java.lang.Thread.run(Thread.java:619)
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[jira] Reopened: (AMQ-1467) Deadlock between
FilePendingMessageCursor and MemoryUsage
Posted by "Nicky Sandhu (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/activemq/browse/AMQ-1467?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Nicky Sandhu reopened AMQ-1467:
-------------------------------
Deadlocked again.... I uncommented these lines @ line # 272 in Usage.java
getExecutor().execute(listenerNotifier);
And now it seems to work great. Please fix.
> Deadlock between FilePendingMessageCursor and MemoryUsage
> ---------------------------------------------------------
>
> Key: AMQ-1467
> URL: https://issues.apache.org/activemq/browse/AMQ-1467
> Project: ActiveMQ
> Issue Type: Bug
> Components: Broker
> Reporter: Nicky Sandhu
> Assignee: Rob Davies
> Priority: Critical
> Fix For: 5.0.0
>
> Attachments: patch-usage-fireevent.txt
>
>
> Deadlock detected by jconsole. Fairly easy to reproduce with a maven-perf-test-plugin using journaled jdbc persistence. Using the latest 5.0-SNAPSHOT build
> ActiveMQ Task
> Name: ActiveMQ Task
> State: BLOCKED on java.lang.Object@1ba1894 owned by: ActiveMQ Transport: tcp:///167.235.7.27:4215
> Total blocked: 1,001 Total waited: 1,002
> Stack trace:
> org.apache.activemq.usage.MemoryUsage.increaseUsage(MemoryUsage.java:126)
> org.apache.activemq.usage.MemoryUsage.increaseUsage(MemoryUsage.java:122)
> org.apache.activemq.command.Message.incrementReferenceCount(Message.java:585)
> org.apache.activemq.broker.region.cursors.FilePendingMessageCursor.next(FilePendingMessageCursor.java:198)
> - locked org.apache.activemq.broker.region.cursors.FilePendingMessageCursor@1347d75
> org.apache.activemq.broker.region.cursors.StoreQueueCursor.next(StoreQueueCursor.java:129)
> - locked org.apache.activemq.broker.region.cursors.StoreQueueCursor@14f3d22
> org.apache.activemq.broker.region.Queue.buildList(Queue.java:1020)
> - locked org.apache.activemq.broker.region.cursors.StoreQueueCursor@14f3d22
> - locked org.apache.activemq.broker.region.Queue@1b2591c
> org.apache.activemq.broker.region.Queue.doPageIn(Queue.java:1002)
> org.apache.activemq.broker.region.Queue.pageInMessages(Queue.java:1065)
> org.apache.activemq.broker.region.Queue.iterate(Queue.java:938)
> org.apache.activemq.thread.PooledTaskRunner.runTask(PooledTaskRunner.java:118)
> org.apache.activemq.thread.PooledTaskRunner$1.run(PooledTaskRunner.java:42)
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
> java.lang.Thread.run(Thread.java:619)
> ActiveMQ Transport: tcp://....:xxxx
> Name: ActiveMQ Transport: tcp:///167.235.7.27:4215
> State: BLOCKED on org.apache.activemq.broker.region.cursors.FilePendingMessageCursor@1347d75 owned by: ActiveMQ Task
> Total blocked: 46 Total waited: 2
> Stack trace:
> org.apache.activemq.broker.region.cursors.FilePendingMessageCursor.onUsageChanged(FilePendingMessageCursor.java:260)
> org.apache.activemq.usage.Usage.fireEvent(Usage.java:254)
> org.apache.activemq.usage.Usage.setPercentUsage(Usage.java:224)
> - locked java.lang.Object@1ba1894
> org.apache.activemq.usage.MemoryUsage.decreaseUsage(MemoryUsage.java:149)
> org.apache.activemq.usage.MemoryUsage.decreaseUsage(MemoryUsage.java:142)
> org.apache.activemq.command.Message.decrementReferenceCount(Message.java:601)
> - locked org.apache.activemq.command.ActiveMQTextMessage@960b08
> org.apache.activemq.broker.region.IndirectMessageReference.drop(IndirectMessageReference.java:137)
> - locked org.apache.activemq.broker.region.IndirectMessageReference@ae7918
> org.apache.activemq.broker.region.QueueSubscription.acknowledge(QueueSubscription.java:56)
> org.apache.activemq.broker.region.PrefetchSubscription.acknowledge(PrefetchSubscription.java:193)
> - locked org.apache.activemq.broker.region.QueueSubscription@1e13a2c
> org.apache.activemq.broker.region.AbstractRegion.acknowledge(AbstractRegion.java:340)
> org.apache.activemq.broker.region.RegionBroker.acknowledge(RegionBroker.java:427)
> org.apache.activemq.broker.TransactionBroker.acknowledge(TransactionBroker.java:194)
> org.apache.activemq.broker.BrokerFilter.acknowledge(BrokerFilter.java:73)
> org.apache.activemq.broker.BrokerFilter.acknowledge(BrokerFilter.java:73)
> org.apache.activemq.broker.MutableBrokerFilter.acknowledge(MutableBrokerFilter.java:87)
> org.apache.activemq.broker.TransportConnection.processMessageAck(TransportConnection.java:478)
> org.apache.activemq.command.MessageAck.visit(MessageAck.java:196)
> org.apache.activemq.broker.TransportConnection.service(TransportConnection.java:319)
> org.apache.activemq.broker.TransportConnection$1.onCommand(TransportConnection.java:216)
> org.apache.activemq.transport.TransportFilter.onCommand(TransportFilter.java:67)
> org.apache.activemq.transport.WireFormatNegotiator.onCommand(WireFormatNegotiator.java:134)
> org.apache.activemq.transport.InactivityMonitor.onCommand(InactivityMonitor.java:124)
> - locked org.apache.activemq.transport.InactivityMonitor$1@10e2558
> org.apache.activemq.transport.TransportSupport.doConsume(TransportSupport.java:83)
> org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:183)
> org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:170)
> java.lang.Thread.run(Thread.java:619)
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[jira] Commented: (AMQ-1467) Deadlock between
FilePendingMessageCursor and MemoryUsage
Posted by "Nicky Sandhu (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/activemq/browse/AMQ-1467?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_40391 ]
Nicky Sandhu commented on AMQ-1467:
-----------------------------------
The above stack trace could not be correlated to revision number. here's the stack trace with activemq-core revision # 585186
----------------- Thread : ActiveMQ Task ----------------------------------
Name: ActiveMQ Task
State: BLOCKED on java.lang.Object@fcc6e8 owned by: ActiveMQ Transport: tcp:///167.235.7.27:4773
Total blocked: 4,249 Total waited: 4,257
Stack trace:
org.apache.activemq.usage.MemoryUsage.decreaseUsage(MemoryUsage.java:146)
org.apache.activemq.usage.MemoryUsage.decreaseUsage(MemoryUsage.java:142)
org.apache.activemq.command.Message.decrementReferenceCount(Message.java:602)
- locked org.apache.activemq.command.ActiveMQTextMessage@450ae7
org.apache.activemq.broker.region.cursors.FilePendingMessageCursor.remove(FilePendingMessageCursor.java:209)
- locked org.apache.activemq.broker.region.cursors.FilePendingMessageCursor@166c37e
org.apache.activemq.broker.region.cursors.StoreQueueCursor.remove(StoreQueueCursor.java:135)
- locked org.apache.activemq.broker.region.cursors.StoreQueueCursor@cece16
org.apache.activemq.broker.region.Queue.buildList(Queue.java:1021)
- locked org.apache.activemq.broker.region.cursors.StoreQueueCursor@cece16
- locked org.apache.activemq.broker.region.Queue@156f770
org.apache.activemq.broker.region.Queue.doPageIn(Queue.java:1002)
org.apache.activemq.broker.region.Queue.pageInMessages(Queue.java:1065)
org.apache.activemq.broker.region.Queue.iterate(Queue.java:938)
org.apache.activemq.thread.PooledTaskRunner.runTask(PooledTaskRunner.java:118)
org.apache.activemq.thread.PooledTaskRunner$1.run(PooledTaskRunner.java:42)
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
java.lang.Thread.run(Thread.java:619)
------------------ Thread ActiveMQ Transport ---------------------------------------
Name: ActiveMQ Transport: tcp:///167.235.7.27:4773
State: BLOCKED on org.apache.activemq.broker.region.cursors.FilePendingMessageCursor@166c37e owned by: ActiveMQ Task
Total blocked: 69 Total waited: 0
Stack trace:
org.apache.activemq.broker.region.cursors.FilePendingMessageCursor.onUsageChanged(FilePendingMessageCursor.java:260)
org.apache.activemq.usage.Usage.fireEvent(Usage.java:254)
org.apache.activemq.usage.Usage.setPercentUsage(Usage.java:224)
- locked java.lang.Object@fcc6e8
org.apache.activemq.usage.MemoryUsage.decreaseUsage(MemoryUsage.java:149)
org.apache.activemq.usage.MemoryUsage.decreaseUsage(MemoryUsage.java:142)
org.apache.activemq.command.Message.decrementReferenceCount(Message.java:602)
- locked org.apache.activemq.command.ActiveMQTextMessage@13c2797
org.apache.activemq.broker.region.IndirectMessageReference.drop(IndirectMessageReference.java:137)
- locked org.apache.activemq.broker.region.IndirectMessageReference@4b5011
org.apache.activemq.broker.region.QueueSubscription.acknowledge(QueueSubscription.java:56)
org.apache.activemq.broker.region.PrefetchSubscription.acknowledge(PrefetchSubscription.java:193)
- locked org.apache.activemq.broker.region.QueueSubscription@5cb0bb
org.apache.activemq.broker.region.AbstractRegion.acknowledge(AbstractRegion.java:340)
org.apache.activemq.broker.region.RegionBroker.acknowledge(RegionBroker.java:427)
org.apache.activemq.broker.TransactionBroker.acknowledge(TransactionBroker.java:194)
org.apache.activemq.broker.BrokerFilter.acknowledge(BrokerFilter.java:73)
org.apache.activemq.broker.BrokerFilter.acknowledge(BrokerFilter.java:73)
org.apache.activemq.broker.MutableBrokerFilter.acknowledge(MutableBrokerFilter.java:87)
org.apache.activemq.broker.TransportConnection.processMessageAck(TransportConnection.java:440)
org.apache.activemq.command.MessageAck.visit(MessageAck.java:196)
org.apache.activemq.broker.TransportConnection.service(TransportConnection.java:281)
org.apache.activemq.broker.TransportConnection$1.onCommand(TransportConnection.java:178)
org.apache.activemq.transport.TransportFilter.onCommand(TransportFilter.java:67)
org.apache.activemq.transport.WireFormatNegotiator.onCommand(WireFormatNegotiator.java:134)
org.apache.activemq.transport.InactivityMonitor.onCommand(InactivityMonitor.java:124)
- locked org.apache.activemq.transport.InactivityMonitor$1@1b8b810
org.apache.activemq.transport.TransportSupport.doConsume(TransportSupport.java:83)
org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:183)
org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:170)
java.lang.Thread.run(Thread.java:619)
> Deadlock between FilePendingMessageCursor and MemoryUsage
> ---------------------------------------------------------
>
> Key: AMQ-1467
> URL: https://issues.apache.org/activemq/browse/AMQ-1467
> Project: ActiveMQ
> Issue Type: Bug
> Components: Broker
> Reporter: Nicky Sandhu
> Priority: Critical
>
> Deadlock detected by jconsole. Fairly easy to reproduce with a maven-perf-test-plugin using journaled jdbc persistence. Using the latest 5.0-SNAPSHOT build
> ActiveMQ Task
> Name: ActiveMQ Task
> State: BLOCKED on java.lang.Object@1ba1894 owned by: ActiveMQ Transport: tcp:///167.235.7.27:4215
> Total blocked: 1,001 Total waited: 1,002
> Stack trace:
> org.apache.activemq.usage.MemoryUsage.increaseUsage(MemoryUsage.java:126)
> org.apache.activemq.usage.MemoryUsage.increaseUsage(MemoryUsage.java:122)
> org.apache.activemq.command.Message.incrementReferenceCount(Message.java:585)
> org.apache.activemq.broker.region.cursors.FilePendingMessageCursor.next(FilePendingMessageCursor.java:198)
> - locked org.apache.activemq.broker.region.cursors.FilePendingMessageCursor@1347d75
> org.apache.activemq.broker.region.cursors.StoreQueueCursor.next(StoreQueueCursor.java:129)
> - locked org.apache.activemq.broker.region.cursors.StoreQueueCursor@14f3d22
> org.apache.activemq.broker.region.Queue.buildList(Queue.java:1020)
> - locked org.apache.activemq.broker.region.cursors.StoreQueueCursor@14f3d22
> - locked org.apache.activemq.broker.region.Queue@1b2591c
> org.apache.activemq.broker.region.Queue.doPageIn(Queue.java:1002)
> org.apache.activemq.broker.region.Queue.pageInMessages(Queue.java:1065)
> org.apache.activemq.broker.region.Queue.iterate(Queue.java:938)
> org.apache.activemq.thread.PooledTaskRunner.runTask(PooledTaskRunner.java:118)
> org.apache.activemq.thread.PooledTaskRunner$1.run(PooledTaskRunner.java:42)
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
> java.lang.Thread.run(Thread.java:619)
> ActiveMQ Transport: tcp://....:xxxx
> Name: ActiveMQ Transport: tcp:///167.235.7.27:4215
> State: BLOCKED on org.apache.activemq.broker.region.cursors.FilePendingMessageCursor@1347d75 owned by: ActiveMQ Task
> Total blocked: 46 Total waited: 2
> Stack trace:
> org.apache.activemq.broker.region.cursors.FilePendingMessageCursor.onUsageChanged(FilePendingMessageCursor.java:260)
> org.apache.activemq.usage.Usage.fireEvent(Usage.java:254)
> org.apache.activemq.usage.Usage.setPercentUsage(Usage.java:224)
> - locked java.lang.Object@1ba1894
> org.apache.activemq.usage.MemoryUsage.decreaseUsage(MemoryUsage.java:149)
> org.apache.activemq.usage.MemoryUsage.decreaseUsage(MemoryUsage.java:142)
> org.apache.activemq.command.Message.decrementReferenceCount(Message.java:601)
> - locked org.apache.activemq.command.ActiveMQTextMessage@960b08
> org.apache.activemq.broker.region.IndirectMessageReference.drop(IndirectMessageReference.java:137)
> - locked org.apache.activemq.broker.region.IndirectMessageReference@ae7918
> org.apache.activemq.broker.region.QueueSubscription.acknowledge(QueueSubscription.java:56)
> org.apache.activemq.broker.region.PrefetchSubscription.acknowledge(PrefetchSubscription.java:193)
> - locked org.apache.activemq.broker.region.QueueSubscription@1e13a2c
> org.apache.activemq.broker.region.AbstractRegion.acknowledge(AbstractRegion.java:340)
> org.apache.activemq.broker.region.RegionBroker.acknowledge(RegionBroker.java:427)
> org.apache.activemq.broker.TransactionBroker.acknowledge(TransactionBroker.java:194)
> org.apache.activemq.broker.BrokerFilter.acknowledge(BrokerFilter.java:73)
> org.apache.activemq.broker.BrokerFilter.acknowledge(BrokerFilter.java:73)
> org.apache.activemq.broker.MutableBrokerFilter.acknowledge(MutableBrokerFilter.java:87)
> org.apache.activemq.broker.TransportConnection.processMessageAck(TransportConnection.java:478)
> org.apache.activemq.command.MessageAck.visit(MessageAck.java:196)
> org.apache.activemq.broker.TransportConnection.service(TransportConnection.java:319)
> org.apache.activemq.broker.TransportConnection$1.onCommand(TransportConnection.java:216)
> org.apache.activemq.transport.TransportFilter.onCommand(TransportFilter.java:67)
> org.apache.activemq.transport.WireFormatNegotiator.onCommand(WireFormatNegotiator.java:134)
> org.apache.activemq.transport.InactivityMonitor.onCommand(InactivityMonitor.java:124)
> - locked org.apache.activemq.transport.InactivityMonitor$1@10e2558
> org.apache.activemq.transport.TransportSupport.doConsume(TransportSupport.java:83)
> org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:183)
> org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:170)
> java.lang.Thread.run(Thread.java:619)
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[jira] Assigned: (AMQ-1467) Deadlock between
FilePendingMessageCursor and MemoryUsage
Posted by "Rob Davies (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/activemq/browse/AMQ-1467?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Rob Davies reassigned AMQ-1467:
-------------------------------
Assignee: Rob Davies
> Deadlock between FilePendingMessageCursor and MemoryUsage
> ---------------------------------------------------------
>
> Key: AMQ-1467
> URL: https://issues.apache.org/activemq/browse/AMQ-1467
> Project: ActiveMQ
> Issue Type: Bug
> Components: Broker
> Reporter: Nicky Sandhu
> Assignee: Rob Davies
> Priority: Critical
> Attachments: patch-usage-fireevent.txt
>
>
> Deadlock detected by jconsole. Fairly easy to reproduce with a maven-perf-test-plugin using journaled jdbc persistence. Using the latest 5.0-SNAPSHOT build
> ActiveMQ Task
> Name: ActiveMQ Task
> State: BLOCKED on java.lang.Object@1ba1894 owned by: ActiveMQ Transport: tcp:///167.235.7.27:4215
> Total blocked: 1,001 Total waited: 1,002
> Stack trace:
> org.apache.activemq.usage.MemoryUsage.increaseUsage(MemoryUsage.java:126)
> org.apache.activemq.usage.MemoryUsage.increaseUsage(MemoryUsage.java:122)
> org.apache.activemq.command.Message.incrementReferenceCount(Message.java:585)
> org.apache.activemq.broker.region.cursors.FilePendingMessageCursor.next(FilePendingMessageCursor.java:198)
> - locked org.apache.activemq.broker.region.cursors.FilePendingMessageCursor@1347d75
> org.apache.activemq.broker.region.cursors.StoreQueueCursor.next(StoreQueueCursor.java:129)
> - locked org.apache.activemq.broker.region.cursors.StoreQueueCursor@14f3d22
> org.apache.activemq.broker.region.Queue.buildList(Queue.java:1020)
> - locked org.apache.activemq.broker.region.cursors.StoreQueueCursor@14f3d22
> - locked org.apache.activemq.broker.region.Queue@1b2591c
> org.apache.activemq.broker.region.Queue.doPageIn(Queue.java:1002)
> org.apache.activemq.broker.region.Queue.pageInMessages(Queue.java:1065)
> org.apache.activemq.broker.region.Queue.iterate(Queue.java:938)
> org.apache.activemq.thread.PooledTaskRunner.runTask(PooledTaskRunner.java:118)
> org.apache.activemq.thread.PooledTaskRunner$1.run(PooledTaskRunner.java:42)
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
> java.lang.Thread.run(Thread.java:619)
> ActiveMQ Transport: tcp://....:xxxx
> Name: ActiveMQ Transport: tcp:///167.235.7.27:4215
> State: BLOCKED on org.apache.activemq.broker.region.cursors.FilePendingMessageCursor@1347d75 owned by: ActiveMQ Task
> Total blocked: 46 Total waited: 2
> Stack trace:
> org.apache.activemq.broker.region.cursors.FilePendingMessageCursor.onUsageChanged(FilePendingMessageCursor.java:260)
> org.apache.activemq.usage.Usage.fireEvent(Usage.java:254)
> org.apache.activemq.usage.Usage.setPercentUsage(Usage.java:224)
> - locked java.lang.Object@1ba1894
> org.apache.activemq.usage.MemoryUsage.decreaseUsage(MemoryUsage.java:149)
> org.apache.activemq.usage.MemoryUsage.decreaseUsage(MemoryUsage.java:142)
> org.apache.activemq.command.Message.decrementReferenceCount(Message.java:601)
> - locked org.apache.activemq.command.ActiveMQTextMessage@960b08
> org.apache.activemq.broker.region.IndirectMessageReference.drop(IndirectMessageReference.java:137)
> - locked org.apache.activemq.broker.region.IndirectMessageReference@ae7918
> org.apache.activemq.broker.region.QueueSubscription.acknowledge(QueueSubscription.java:56)
> org.apache.activemq.broker.region.PrefetchSubscription.acknowledge(PrefetchSubscription.java:193)
> - locked org.apache.activemq.broker.region.QueueSubscription@1e13a2c
> org.apache.activemq.broker.region.AbstractRegion.acknowledge(AbstractRegion.java:340)
> org.apache.activemq.broker.region.RegionBroker.acknowledge(RegionBroker.java:427)
> org.apache.activemq.broker.TransactionBroker.acknowledge(TransactionBroker.java:194)
> org.apache.activemq.broker.BrokerFilter.acknowledge(BrokerFilter.java:73)
> org.apache.activemq.broker.BrokerFilter.acknowledge(BrokerFilter.java:73)
> org.apache.activemq.broker.MutableBrokerFilter.acknowledge(MutableBrokerFilter.java:87)
> org.apache.activemq.broker.TransportConnection.processMessageAck(TransportConnection.java:478)
> org.apache.activemq.command.MessageAck.visit(MessageAck.java:196)
> org.apache.activemq.broker.TransportConnection.service(TransportConnection.java:319)
> org.apache.activemq.broker.TransportConnection$1.onCommand(TransportConnection.java:216)
> org.apache.activemq.transport.TransportFilter.onCommand(TransportFilter.java:67)
> org.apache.activemq.transport.WireFormatNegotiator.onCommand(WireFormatNegotiator.java:134)
> org.apache.activemq.transport.InactivityMonitor.onCommand(InactivityMonitor.java:124)
> - locked org.apache.activemq.transport.InactivityMonitor$1@10e2558
> org.apache.activemq.transport.TransportSupport.doConsume(TransportSupport.java:83)
> org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:183)
> org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:170)
> java.lang.Thread.run(Thread.java:619)
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[jira] Commented: (AMQ-1467) Deadlock between
FilePendingMessageCursor and MemoryUsage
Posted by "Rob Davies (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/activemq/browse/AMQ-1467?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_40439 ]
Rob Davies commented on AMQ-1467:
---------------------------------
DOH! can't believe I did that! - I was chasing down another bug
> Deadlock between FilePendingMessageCursor and MemoryUsage
> ---------------------------------------------------------
>
> Key: AMQ-1467
> URL: https://issues.apache.org/activemq/browse/AMQ-1467
> Project: ActiveMQ
> Issue Type: Bug
> Components: Broker
> Reporter: Nicky Sandhu
> Assignee: Rob Davies
> Priority: Critical
> Fix For: 5.0.0
>
> Attachments: patch-usage-fireevent.txt
>
>
> Deadlock detected by jconsole. Fairly easy to reproduce with a maven-perf-test-plugin using journaled jdbc persistence. Using the latest 5.0-SNAPSHOT build
> ActiveMQ Task
> Name: ActiveMQ Task
> State: BLOCKED on java.lang.Object@1ba1894 owned by: ActiveMQ Transport: tcp:///167.235.7.27:4215
> Total blocked: 1,001 Total waited: 1,002
> Stack trace:
> org.apache.activemq.usage.MemoryUsage.increaseUsage(MemoryUsage.java:126)
> org.apache.activemq.usage.MemoryUsage.increaseUsage(MemoryUsage.java:122)
> org.apache.activemq.command.Message.incrementReferenceCount(Message.java:585)
> org.apache.activemq.broker.region.cursors.FilePendingMessageCursor.next(FilePendingMessageCursor.java:198)
> - locked org.apache.activemq.broker.region.cursors.FilePendingMessageCursor@1347d75
> org.apache.activemq.broker.region.cursors.StoreQueueCursor.next(StoreQueueCursor.java:129)
> - locked org.apache.activemq.broker.region.cursors.StoreQueueCursor@14f3d22
> org.apache.activemq.broker.region.Queue.buildList(Queue.java:1020)
> - locked org.apache.activemq.broker.region.cursors.StoreQueueCursor@14f3d22
> - locked org.apache.activemq.broker.region.Queue@1b2591c
> org.apache.activemq.broker.region.Queue.doPageIn(Queue.java:1002)
> org.apache.activemq.broker.region.Queue.pageInMessages(Queue.java:1065)
> org.apache.activemq.broker.region.Queue.iterate(Queue.java:938)
> org.apache.activemq.thread.PooledTaskRunner.runTask(PooledTaskRunner.java:118)
> org.apache.activemq.thread.PooledTaskRunner$1.run(PooledTaskRunner.java:42)
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
> java.lang.Thread.run(Thread.java:619)
> ActiveMQ Transport: tcp://....:xxxx
> Name: ActiveMQ Transport: tcp:///167.235.7.27:4215
> State: BLOCKED on org.apache.activemq.broker.region.cursors.FilePendingMessageCursor@1347d75 owned by: ActiveMQ Task
> Total blocked: 46 Total waited: 2
> Stack trace:
> org.apache.activemq.broker.region.cursors.FilePendingMessageCursor.onUsageChanged(FilePendingMessageCursor.java:260)
> org.apache.activemq.usage.Usage.fireEvent(Usage.java:254)
> org.apache.activemq.usage.Usage.setPercentUsage(Usage.java:224)
> - locked java.lang.Object@1ba1894
> org.apache.activemq.usage.MemoryUsage.decreaseUsage(MemoryUsage.java:149)
> org.apache.activemq.usage.MemoryUsage.decreaseUsage(MemoryUsage.java:142)
> org.apache.activemq.command.Message.decrementReferenceCount(Message.java:601)
> - locked org.apache.activemq.command.ActiveMQTextMessage@960b08
> org.apache.activemq.broker.region.IndirectMessageReference.drop(IndirectMessageReference.java:137)
> - locked org.apache.activemq.broker.region.IndirectMessageReference@ae7918
> org.apache.activemq.broker.region.QueueSubscription.acknowledge(QueueSubscription.java:56)
> org.apache.activemq.broker.region.PrefetchSubscription.acknowledge(PrefetchSubscription.java:193)
> - locked org.apache.activemq.broker.region.QueueSubscription@1e13a2c
> org.apache.activemq.broker.region.AbstractRegion.acknowledge(AbstractRegion.java:340)
> org.apache.activemq.broker.region.RegionBroker.acknowledge(RegionBroker.java:427)
> org.apache.activemq.broker.TransactionBroker.acknowledge(TransactionBroker.java:194)
> org.apache.activemq.broker.BrokerFilter.acknowledge(BrokerFilter.java:73)
> org.apache.activemq.broker.BrokerFilter.acknowledge(BrokerFilter.java:73)
> org.apache.activemq.broker.MutableBrokerFilter.acknowledge(MutableBrokerFilter.java:87)
> org.apache.activemq.broker.TransportConnection.processMessageAck(TransportConnection.java:478)
> org.apache.activemq.command.MessageAck.visit(MessageAck.java:196)
> org.apache.activemq.broker.TransportConnection.service(TransportConnection.java:319)
> org.apache.activemq.broker.TransportConnection$1.onCommand(TransportConnection.java:216)
> org.apache.activemq.transport.TransportFilter.onCommand(TransportFilter.java:67)
> org.apache.activemq.transport.WireFormatNegotiator.onCommand(WireFormatNegotiator.java:134)
> org.apache.activemq.transport.InactivityMonitor.onCommand(InactivityMonitor.java:124)
> - locked org.apache.activemq.transport.InactivityMonitor$1@10e2558
> org.apache.activemq.transport.TransportSupport.doConsume(TransportSupport.java:83)
> org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:183)
> org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:170)
> java.lang.Thread.run(Thread.java:619)
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[jira] Resolved: (AMQ-1467) Deadlock between
FilePendingMessageCursor and MemoryUsage
Posted by "Rob Davies (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/activemq/browse/AMQ-1467?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Rob Davies resolved AMQ-1467.
-----------------------------
Resolution: Fixed
Fix Version/s: 5.0.0
Fixed by svn revision 585967
> Deadlock between FilePendingMessageCursor and MemoryUsage
> ---------------------------------------------------------
>
> Key: AMQ-1467
> URL: https://issues.apache.org/activemq/browse/AMQ-1467
> Project: ActiveMQ
> Issue Type: Bug
> Components: Broker
> Reporter: Nicky Sandhu
> Assignee: Rob Davies
> Priority: Critical
> Fix For: 5.0.0
>
> Attachments: patch-usage-fireevent.txt
>
>
> Deadlock detected by jconsole. Fairly easy to reproduce with a maven-perf-test-plugin using journaled jdbc persistence. Using the latest 5.0-SNAPSHOT build
> ActiveMQ Task
> Name: ActiveMQ Task
> State: BLOCKED on java.lang.Object@1ba1894 owned by: ActiveMQ Transport: tcp:///167.235.7.27:4215
> Total blocked: 1,001 Total waited: 1,002
> Stack trace:
> org.apache.activemq.usage.MemoryUsage.increaseUsage(MemoryUsage.java:126)
> org.apache.activemq.usage.MemoryUsage.increaseUsage(MemoryUsage.java:122)
> org.apache.activemq.command.Message.incrementReferenceCount(Message.java:585)
> org.apache.activemq.broker.region.cursors.FilePendingMessageCursor.next(FilePendingMessageCursor.java:198)
> - locked org.apache.activemq.broker.region.cursors.FilePendingMessageCursor@1347d75
> org.apache.activemq.broker.region.cursors.StoreQueueCursor.next(StoreQueueCursor.java:129)
> - locked org.apache.activemq.broker.region.cursors.StoreQueueCursor@14f3d22
> org.apache.activemq.broker.region.Queue.buildList(Queue.java:1020)
> - locked org.apache.activemq.broker.region.cursors.StoreQueueCursor@14f3d22
> - locked org.apache.activemq.broker.region.Queue@1b2591c
> org.apache.activemq.broker.region.Queue.doPageIn(Queue.java:1002)
> org.apache.activemq.broker.region.Queue.pageInMessages(Queue.java:1065)
> org.apache.activemq.broker.region.Queue.iterate(Queue.java:938)
> org.apache.activemq.thread.PooledTaskRunner.runTask(PooledTaskRunner.java:118)
> org.apache.activemq.thread.PooledTaskRunner$1.run(PooledTaskRunner.java:42)
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
> java.lang.Thread.run(Thread.java:619)
> ActiveMQ Transport: tcp://....:xxxx
> Name: ActiveMQ Transport: tcp:///167.235.7.27:4215
> State: BLOCKED on org.apache.activemq.broker.region.cursors.FilePendingMessageCursor@1347d75 owned by: ActiveMQ Task
> Total blocked: 46 Total waited: 2
> Stack trace:
> org.apache.activemq.broker.region.cursors.FilePendingMessageCursor.onUsageChanged(FilePendingMessageCursor.java:260)
> org.apache.activemq.usage.Usage.fireEvent(Usage.java:254)
> org.apache.activemq.usage.Usage.setPercentUsage(Usage.java:224)
> - locked java.lang.Object@1ba1894
> org.apache.activemq.usage.MemoryUsage.decreaseUsage(MemoryUsage.java:149)
> org.apache.activemq.usage.MemoryUsage.decreaseUsage(MemoryUsage.java:142)
> org.apache.activemq.command.Message.decrementReferenceCount(Message.java:601)
> - locked org.apache.activemq.command.ActiveMQTextMessage@960b08
> org.apache.activemq.broker.region.IndirectMessageReference.drop(IndirectMessageReference.java:137)
> - locked org.apache.activemq.broker.region.IndirectMessageReference@ae7918
> org.apache.activemq.broker.region.QueueSubscription.acknowledge(QueueSubscription.java:56)
> org.apache.activemq.broker.region.PrefetchSubscription.acknowledge(PrefetchSubscription.java:193)
> - locked org.apache.activemq.broker.region.QueueSubscription@1e13a2c
> org.apache.activemq.broker.region.AbstractRegion.acknowledge(AbstractRegion.java:340)
> org.apache.activemq.broker.region.RegionBroker.acknowledge(RegionBroker.java:427)
> org.apache.activemq.broker.TransactionBroker.acknowledge(TransactionBroker.java:194)
> org.apache.activemq.broker.BrokerFilter.acknowledge(BrokerFilter.java:73)
> org.apache.activemq.broker.BrokerFilter.acknowledge(BrokerFilter.java:73)
> org.apache.activemq.broker.MutableBrokerFilter.acknowledge(MutableBrokerFilter.java:87)
> org.apache.activemq.broker.TransportConnection.processMessageAck(TransportConnection.java:478)
> org.apache.activemq.command.MessageAck.visit(MessageAck.java:196)
> org.apache.activemq.broker.TransportConnection.service(TransportConnection.java:319)
> org.apache.activemq.broker.TransportConnection$1.onCommand(TransportConnection.java:216)
> org.apache.activemq.transport.TransportFilter.onCommand(TransportFilter.java:67)
> org.apache.activemq.transport.WireFormatNegotiator.onCommand(WireFormatNegotiator.java:134)
> org.apache.activemq.transport.InactivityMonitor.onCommand(InactivityMonitor.java:124)
> - locked org.apache.activemq.transport.InactivityMonitor$1@10e2558
> org.apache.activemq.transport.TransportSupport.doConsume(TransportSupport.java:83)
> org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:183)
> org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:170)
> java.lang.Thread.run(Thread.java:619)
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[jira] Updated: (AMQ-1467) Deadlock between
FilePendingMessageCursor and MemoryUsage
Posted by "Nicky Sandhu (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/activemq/browse/AMQ-1467?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Nicky Sandhu updated AMQ-1467:
------------------------------
Attachment: patch-usage-fireevent.txt
Taking a page from the Swing/AWT event dispatch book I started a new thread for actually notifiying the listeners. This avoids this and other potential callback deadlocks for Usage.
Reran the load tests using maven-perftest-plugin and things seem to be stable so far
> Deadlock between FilePendingMessageCursor and MemoryUsage
> ---------------------------------------------------------
>
> Key: AMQ-1467
> URL: https://issues.apache.org/activemq/browse/AMQ-1467
> Project: ActiveMQ
> Issue Type: Bug
> Components: Broker
> Reporter: Nicky Sandhu
> Priority: Critical
> Attachments: patch-usage-fireevent.txt
>
>
> Deadlock detected by jconsole. Fairly easy to reproduce with a maven-perf-test-plugin using journaled jdbc persistence. Using the latest 5.0-SNAPSHOT build
> ActiveMQ Task
> Name: ActiveMQ Task
> State: BLOCKED on java.lang.Object@1ba1894 owned by: ActiveMQ Transport: tcp:///167.235.7.27:4215
> Total blocked: 1,001 Total waited: 1,002
> Stack trace:
> org.apache.activemq.usage.MemoryUsage.increaseUsage(MemoryUsage.java:126)
> org.apache.activemq.usage.MemoryUsage.increaseUsage(MemoryUsage.java:122)
> org.apache.activemq.command.Message.incrementReferenceCount(Message.java:585)
> org.apache.activemq.broker.region.cursors.FilePendingMessageCursor.next(FilePendingMessageCursor.java:198)
> - locked org.apache.activemq.broker.region.cursors.FilePendingMessageCursor@1347d75
> org.apache.activemq.broker.region.cursors.StoreQueueCursor.next(StoreQueueCursor.java:129)
> - locked org.apache.activemq.broker.region.cursors.StoreQueueCursor@14f3d22
> org.apache.activemq.broker.region.Queue.buildList(Queue.java:1020)
> - locked org.apache.activemq.broker.region.cursors.StoreQueueCursor@14f3d22
> - locked org.apache.activemq.broker.region.Queue@1b2591c
> org.apache.activemq.broker.region.Queue.doPageIn(Queue.java:1002)
> org.apache.activemq.broker.region.Queue.pageInMessages(Queue.java:1065)
> org.apache.activemq.broker.region.Queue.iterate(Queue.java:938)
> org.apache.activemq.thread.PooledTaskRunner.runTask(PooledTaskRunner.java:118)
> org.apache.activemq.thread.PooledTaskRunner$1.run(PooledTaskRunner.java:42)
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
> java.lang.Thread.run(Thread.java:619)
> ActiveMQ Transport: tcp://....:xxxx
> Name: ActiveMQ Transport: tcp:///167.235.7.27:4215
> State: BLOCKED on org.apache.activemq.broker.region.cursors.FilePendingMessageCursor@1347d75 owned by: ActiveMQ Task
> Total blocked: 46 Total waited: 2
> Stack trace:
> org.apache.activemq.broker.region.cursors.FilePendingMessageCursor.onUsageChanged(FilePendingMessageCursor.java:260)
> org.apache.activemq.usage.Usage.fireEvent(Usage.java:254)
> org.apache.activemq.usage.Usage.setPercentUsage(Usage.java:224)
> - locked java.lang.Object@1ba1894
> org.apache.activemq.usage.MemoryUsage.decreaseUsage(MemoryUsage.java:149)
> org.apache.activemq.usage.MemoryUsage.decreaseUsage(MemoryUsage.java:142)
> org.apache.activemq.command.Message.decrementReferenceCount(Message.java:601)
> - locked org.apache.activemq.command.ActiveMQTextMessage@960b08
> org.apache.activemq.broker.region.IndirectMessageReference.drop(IndirectMessageReference.java:137)
> - locked org.apache.activemq.broker.region.IndirectMessageReference@ae7918
> org.apache.activemq.broker.region.QueueSubscription.acknowledge(QueueSubscription.java:56)
> org.apache.activemq.broker.region.PrefetchSubscription.acknowledge(PrefetchSubscription.java:193)
> - locked org.apache.activemq.broker.region.QueueSubscription@1e13a2c
> org.apache.activemq.broker.region.AbstractRegion.acknowledge(AbstractRegion.java:340)
> org.apache.activemq.broker.region.RegionBroker.acknowledge(RegionBroker.java:427)
> org.apache.activemq.broker.TransactionBroker.acknowledge(TransactionBroker.java:194)
> org.apache.activemq.broker.BrokerFilter.acknowledge(BrokerFilter.java:73)
> org.apache.activemq.broker.BrokerFilter.acknowledge(BrokerFilter.java:73)
> org.apache.activemq.broker.MutableBrokerFilter.acknowledge(MutableBrokerFilter.java:87)
> org.apache.activemq.broker.TransportConnection.processMessageAck(TransportConnection.java:478)
> org.apache.activemq.command.MessageAck.visit(MessageAck.java:196)
> org.apache.activemq.broker.TransportConnection.service(TransportConnection.java:319)
> org.apache.activemq.broker.TransportConnection$1.onCommand(TransportConnection.java:216)
> org.apache.activemq.transport.TransportFilter.onCommand(TransportFilter.java:67)
> org.apache.activemq.transport.WireFormatNegotiator.onCommand(WireFormatNegotiator.java:134)
> org.apache.activemq.transport.InactivityMonitor.onCommand(InactivityMonitor.java:124)
> - locked org.apache.activemq.transport.InactivityMonitor$1@10e2558
> org.apache.activemq.transport.TransportSupport.doConsume(TransportSupport.java:83)
> org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:183)
> org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:170)
> java.lang.Thread.run(Thread.java:619)
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