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From Dirk Alexander Schäfer (JIRA) <j...@apache.org>
Subject [jira] Created: (AMQ-2811) Network of Brokers: NIO-Transport: Members die after some hours
Date Tue, 06 Jul 2010 13:26:52 GMT
Network of Brokers: NIO-Transport: Members die after some hours
---------------------------------------------------------------

                 Key: AMQ-2811
                 URL: https://issues.apache.org/activemq/browse/AMQ-2811
             Project: ActiveMQ
          Issue Type: Bug
          Components: Broker
    Affects Versions: 5.3.1
         Environment: RedHat Linux, Java 1.6
            Reporter: Dirk Alexander Schäfer


i have a network of brokers configured with four nodes where each node knows the other three
nodes through the networkConnector config. two of these four nodes are currently down/unavailable.
the other two nodes are working for about four hours then they die. in the log file i see
a lot of entries like this one:

2010-07-05 00:53:01,741 | ERROR | Could not stop service: tcp://null:0. Reason: java.lang.NullPointerException
| org.apache.activemq.transport.nio.NIOTransport | Simple Discovery Agent: java.util.concurrent.ThreadPoolExecutor$Worker@f782b1
java.lang.NullPointerException
        at org.apache.activemq.transport.nio.NIOTransport.doStop(NIOTransport.java:152)
        at org.apache.activemq.util.ServiceSupport.stop(ServiceSupport.java:69)
        at org.apache.activemq.transport.tcp.TcpTransport.stop(TcpTransport.java:500)
        at org.apache.activemq.transport.InactivityMonitor.stop(InactivityMonitor.java:121)
        at org.apache.activemq.transport.TransportFilter.stop(TransportFilter.java:64)
        at org.apache.activemq.transport.WireFormatNegotiator.stop(WireFormatNegotiator.java:91)
        at org.apache.activemq.transport.TransportFilter.stop(TransportFilter.java:64)
        at org.apache.activemq.transport.TransportFilter.stop(TransportFilter.java:64)
        at org.apache.activemq.transport.ResponseCorrelator.stop(ResponseCorrelator.java:132)
        at org.apache.activemq.util.ServiceSupport.dispose(ServiceSupport.java:43)
        at org.apache.activemq.network.DiscoveryNetworkConnector.onServiceAdd(DiscoveryNetworkConnector.java:134)
        at org.apache.activemq.transport.discovery.simple.SimpleDiscoveryAgent$1.run(SimpleDiscoveryAgent.java:164)
        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
        at java.lang.Thread.run(Thread.java:619 

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