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From "craig mcmillan (JIRA)" <j...@apache.org>
Subject [jira] Created: (AMQ-2329) Queue.send NPE in broker => inoperative broker
Date Wed, 22 Jul 2009 07:39:33 GMT
Queue.send NPE in broker => inoperative broker
----------------------------------------------

                 Key: AMQ-2329
                 URL: https://issues.apache.org/activemq/browse/AMQ-2329
             Project: ActiveMQ
          Issue Type: Bug
          Components: Broker
    Affects Versions: 5.2.0
            Reporter: craig mcmillan


after correct operation for some time, an NPE in the broker renders the broker inoperable.
restart is required

these mails describe two instances of what seem to be the same problem :

http://www.nabble.com/NPE-in-broker-%3D%3E-inoperative-broker-to24586798.html
http://www.nabble.com/What-can-be-the-reason---td21750762.html#a21750762

below is activemq related logging from broker start to failure. info level and above only
unfortunately 

the tcp:///127.0.0.1:55870 is a client connection

i only have one broker. there were two clients, one in the same vm, producing only, and one
in a different vm both consuming and producing, each using a single tcp connection


------------------------>

20 Jul 2009 14:01:21,134 INFO  [BrokerService] (main:) - Using Persistence Adapter: AMQPersistenceAdapter(/home/sonar/sonar/local_storage/production_devcrunch01-reeep/amq)
20 Jul 2009 14:01:21,219 INFO  [KahaStore] (main:) - Kaha Store using data directory /home/sonar/sonar/local_storage/production_devcrunch01-reeep/amq/kr-store/state
20 Jul 2009 14:01:21,348 INFO  [BrokerService] (main:) - ActiveMQ 5.2.0 JMS Message Broker
(sonar-production-devcrunch01-reeep) is starting
20 Jul 2009 14:01:21,348 INFO  [BrokerService] (main:) - For help or more information please
see: http://activemq.apache.org/
20 Jul 2009 14:01:21,527 INFO  [KahaStore] (main:) - Kaha Store using data directory /home/sonar/sonar/local_storage/production_devcrunch01-reeep/amq/kr-store/data
20 Jul 2009 14:01:21,595 INFO  [TransportServerThreadSupport] (main:) - Listening for connections
at: tcp://devcrunch01:50639
20 Jul 2009 14:01:21,667 INFO  [TransportConnector] (main:) - Connector openwire Started
20 Jul 2009 14:01:21,668 INFO  [BrokerService] (main:) - ActiveMQ JMS Message Broker (sonar-production-devcrunch01-reeep,
ID:devcrunch01-55590-1248098481379-0:0) started
20 Jul 2009 14:02:19,904 INFO  [DiscoveryTransport] (Multicast Discovery Agent Notifier:)
- Adding new broker connection URL: tcp://devcrunch01:50639
20 Jul 2009 14:02:19,934 INFO  [FailoverTransport] (ActiveMQ Task:) - Successfully connected
to tcp://devcrunch01:50639
20 Jul 2009 14:36:24,989 INFO  [DiscoveryTransport] (Multicast Discovery Agent Notifier:)
- Adding new broker connection URL: tcp://devcrunch01:50639
20 Jul 2009 19:53:24,757 INFO  [DiscoveryTransport] (Multicast Discovery Agent Notifier:)
- Adding new broker connection URL: tcp://devcrunch01:50639
20 Jul 2009 19:53:25,249 WARN  [FailoverTransport] (ActiveMQ Transport: tcp://localhost/127.0.0.1:50639:)
- Transport failed to tcp://devcrunch01:50639 , attempting to automatically reconnect due
to: java.net.SocketException: Connection reset
20 Jul 2009 19:53:25,322 INFO  [FailoverTransport] (ActiveMQ Task:) - Successfully reconnected
to tcp://devcrunch01:50639
21 Jul 2009 09:03:59,091 INFO  [DiscoveryTransport] (Multicast Discovery Agent Notifier:)
- Adding new broker connection URL: tcp://devcrunch01:50639
21 Jul 2009 09:03:59,341 INFO  [FailoverTransport] (ActiveMQ Task:) - Successfully reconnected
to tcp://devcrunch01:50639
21 Jul 2009 09:03:59,362 WARN  [FailoverTransport] (InactivityMonitor Async Task: java.util.concurrent.ThreadPoolExecutor$Worker@719bd84b:)
- Transport failed to tcp://devcrunch01:50639 , attempting to automatically reconnect due
to: org.apache.activemq.transport.InactivityIOException: Channel was inactive for too long:
localhost/127.0.0.1:50639
21 Jul 2009 09:04:14,136 ERROR [Service] (ActiveMQ Transport: tcp:///127.0.0.1:55870:) - Async
error occurred: java.lang.NullPointerException
java.lang.NullPointerException
	at org.apache.activemq.broker.region.Queue.send(Queue.java:328)
	at org.apache.activemq.broker.region.AbstractRegion.send(AbstractRegion.java:350)
	at org.apache.activemq.broker.region.RegionBroker.send(RegionBroker.java:437)
	at org.apache.activemq.broker.TransactionBroker.send(TransactionBroker.java:224)
	at org.apache.activemq.broker.BrokerFilter.send(BrokerFilter.java:126)
	at org.apache.activemq.broker.CompositeDestinationBroker.send(CompositeDestinationBroker.java:95)
	at org.apache.activemq.broker.MutableBrokerFilter.send(MutableBrokerFilter.java:133)
	at org.apache.activemq.broker.TransportConnection.processMessage(TransportConnection.java:450)
	at org.apache.activemq.command.ActiveMQMessage.visit(ActiveMQMessage.java:639)
	at org.apache.activemq.broker.TransportConnection.service(TransportConnection.java:305)
	at org.apache.activemq.broker.TransportConnection$1.onCommand(TransportConnection.java:179)
	at org.apache.activemq.transport.TransportFilter.onCommand(TransportFilter.java:68)
	at org.apache.activemq.transport.WireFormatNegotiator.onCommand(WireFormatNegotiator.java:143)
	at org.apache.activemq.transport.InactivityMonitor.onCommand(InactivityMonitor.java:206)
	at org.apache.activemq.transport.TransportSupport.doConsume(TransportSupport.java:84)
	at org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:203)
	at org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:185)
	at java.lang.Thread.run(Thread.java:619)



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