Im not sure if this the right forum for this,but here goes - We use Jboss 3.2.6 
with JBOssCache for replication, and mod-jk for load balancing. We are running 
in a cluster, but sometimes we have this problem even without the cluster.

I get this exception, every few minutes in the log, although they dont seem to 
be doing anything (please see below).

Another problem we have in production, which is very bothersome is that: we 
have mod jk with jboss. When the load is high, after an hour or so (sometimes 
the time interval varies), mod jk gets locked up (ie, does not take in any more 
connections), and one or more of the appserver instances die with java defunct 
processes. I have to forcekill the app server instance to make the setup work 
again. This never happens in development, and always in production. Any insight 
on this will be very greatly appreciated.

Thanks!

-----

2005-08-16 10:47:52,415 WARN [org.apache.jk.common.ChannelSocket] Error 
registering request
2005-08-16 10:49:44,986 ERROR [org.apache.commons.modeler.Registry] Error 
registering jboss.web:type=RequestProcessor,worker=jk-8009,name=JkRequest111

javax.management.InstanceAlreadyExistsException: 
jboss.web:type=RequestProcessor,worker=jk-8009,name=JkRequest111 already 
registered.
at 
org.jboss.mx.server.registry.BasicMBeanRegistry.add(BasicMBeanRegistry.java:704)
at 
org.jboss.mx.server.registry.BasicMBeanRegistry.registerMBean(BasicMBeanRegistry.java:212)
at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)
at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.jboss.mx.server.ReflectedDispatcher.dispatch(ReflectedDispatcher.java:60)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:62)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:54)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:82)
at 
org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:197)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:473)
at org.jboss.mx.server.MBeanServerImpl.registerMBean(MBeanServerImpl.java:1018)
at org.jboss.mx.server.MBeanServerImpl.registerMBean(MBeanServerImpl.java:326)
at org.apache.commons.modeler.Registry.registerComponent(Registry.java:871)
at org.apache.jk.common.ChannelSocket.registerRequest(ChannelSocket.java:436)
at org.apache.jk.common.HandlerRequest.decodeRequest(HandlerRequest.java:443)
at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:352)
at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:743)
at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:675)
at org.apache.jk.common.SocketConnection.runIt(ChannelSocket.java:866)
at 
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683)
at java.lang.Thread.run(Thread.java:534)
2005-08-16 10:49:44,987 WARN [org.apache.jk.common.ChannelSocket] Error 
registering request

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