[jboss-user] [Installation, Configuration & DEPLOYMENT] - Error while running multiple instances of JBOSS 4.0.5 on sam

[wmt2007]

We are trying to run multiple instances of JBOSS 4.0.5 on the same machine and are running into port conflict issues. 

For configuring multiple instances, we have followed instructions from the foll JBOSS documentation : 

http://docs.jboss.org/jbossas/guides/j2eeguide/r2/en/html/ch08.html#ch10.bindingmanager.

We setup two instances by copying the default settings . Changes to the ports numbers were made for the second instance in the foll files


<jboss-instance2>conf\jboss-service.xml
<jboss-instance2>\deploy\http-invoker.sar\META-INF\jboss-service.xml 
<jboss-instance2>\deploy\jbossweb-tomcat55.sar\server.xml
<jboss-instance2>\deploy\jms\uil2-service.xml


When we try to run the first instance there are no issues, when we run the second instance on the same machine, we get an error "Port 0 already in use" . 

"java.rmi.server.ExportException: Port already in use: 0; nested exception is: 
	java.net.BindException: Address already in use: JVM_Bind
	at sun.rmi.transport.tcp.TCPTransport.listen(TCPTransport.java:243)
	at sun.rmi.transport.tcp.TCPTransport.exportObject(TCPTransport.java:178)
	at sun.rmi.transport.tcp.TCPEndpoint.exportObject(TCPEndpoint.java:382)
	at sun.rmi.transport.LiveRef.exportObject(LiveRef.java:116)
	at sun.rmi.server.UnicastServerRef.exportObject(UnicastServerRef.java:180)
	at java.rmi.server.UnicastRemoteObject.exportObject(UnicastRemoteObject.java:293)
	at java.rmi.server.UnicastRemoteObject.exportObject(UnicastRemoteObject.java:235)
	at java.rmi.server.UnicastRemoteObject.(UnicastRemoteObject.java:133)
	at java.rmi.server.UnicastRemoteObject.(UnicastRemoteObject.java:119)
......................"


1) How do we rectify this error?

2) Are there any other configuration changes that need to be done to run multiple instances of JBOSS ?

thanks,
Sridevi

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