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From dialsc <dirk.a.schae...@bluewin.ch>
Subject Network of Brokers: Members die after some hours
Date Mon, 05 Jul 2010 06:29:07 GMT

hello,

i have a network of brokers configured with four nodes where each node knows
the other three nodes through the networkConnector config. two of theses
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

and yes, i'm using the nio transport.
has anyone got an idea?

thx,
greez,

dialsc
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