Error on installing two instances of JBOSS on the same machi

[vishnukn]

Below is the error

s.DefaultSocketFactory
06:22:23,862 WARN [NamingService] Context.PROVIDER_URL in server jndi.properties, url=172.16.2.176:3091
06:22:28,993 INFO [SubscriptionManager] Bound event dispatcher to java:/EventDispatcher

06:22:29,875 ERROR [TrapdService] Cannot instantiate trap session
06:22:29,881 WARN [ServiceController] Problem starting service jboss.jmx:name=SnmpAgent,service=trapd,type=logger
java.net.BindException: Address already in use
 at java.net.PlainDatagramSocketImpl.bind0(Native Method)
 at java.net.PlainDatagramSocketImpl.bind(PlainDatagramSocketImpl.java:82)
 at java.net.DatagramSocket.bind(DatagramSocket.java:368)
 at java.net.DatagramSocket.<init>(DatagramSocket.java:210)
 at java.net.DatagramSocket.<init>(DatagramSocket.java:261)
 at org.opennms.protocols.snmp.SnmpPortal.<init>(SnmpPortal.java:295)
 at org.opennms.protocols.snmp.SnmpPortal.<init>(SnmpPortal.java:257)
 at org.opennms.protocols.snmp.SnmpTrapSession.<init>(SnmpTrapSession.java:336)
 at org.jboss.jmx.adaptor.snmp.trapd.TrapdService.startService(TrapdService.java:131)
 at org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:289)
 at org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java:245)
 at sun.reflect.GeneratedMethodAccessor2.invoke(Unknown Source)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
 at java.lang.reflect.Method.invoke(Method.java:585)
 at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
 at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
 at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
 at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
 at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
 at org.jboss.system.ServiceController$ServiceProxy.invoke(ServiceController.java:978)
 at $Proxy0.start(Unknown Source)
 at org.jboss.system.ServiceController.start(ServiceController.java:417)
 at sun.reflect.GeneratedMethodAccessor9.invoke(Unknown Source)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
 at java.lang.reflect.Method.invoke(Method.java:585)
 at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
 at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
 at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
 at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
 at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
 at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)
 at $Proxy4.start(Unknown Source)
 at org.jboss.deployment.SARDeployer.start(SARDeployer.java:302)
 at org.jboss.deployment.MainDeployer.start(MainDeployer.java:1007)
 at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:808)
 at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:771)

Please help

[mpashkin]

You try to start up two application servers with the same ports to listen.

Example:
1. You start the first server which will listen port number 1234.
2. At the same machine you try to start the second application server which try to listen port number 1234, but this port is busy by the first server. And "java.net.BindException: Address already in use" exception will appear.

Solution:
1. Read logs.
2. Change the port number for the second server.

[peterj]

It also helps if you do a search in the wiki:

http://wiki.jboss.org/wiki/Wiki.jsp?page=ConfiguringMultipleJBossInstancesOnOneMachine