There is a problem with the SNMP Agent in the latest 4.0.x code as well as in 4.0.4CR2. The service does not respect the jboss.bind.address configuration. When I start two instances of the all configuration, the addresses conflict even though the servers are running on two different IPs. It appears that SNMPAgent is bound to *:1161 instead of the value passed to jboss.bind.address. Here are the steps to reproducing the bug:



- checkout latest 4.0.x branch

- build and copy the all configuration into two new configurations, I named them node0 and node1

- start node0 using the -b option and binding it to private IP address, other than localhost

- start node1 again binding it to another IP.
Here is the exception trace seen during startup of node1:

2006-05-17 14:34:25,880 DEBUG [org.jboss.jmx.adaptor.snmp
.agent.SnmpAgentService] Starting snmp agent ...
2006-05-17 14:34:25,892 DEBUG [org.jboss.jmx.adaptor.snmp.agent.SnmpAgentService] Starting failed jboss.jmx:name=SnmpAgent,service=snmp,type=adaptor
java.net.BindException: Address already in use
 at java.net.PlainDatagramSocketImpl.bind(Native Method)
 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:256)
 at org.opennms.protocols.snmp.SnmpPortal.<init>(SnmpPortal.java:204)
 at org.opennms.protocols.snmp.SnmpAgentSession.<init>(SnmpAgentSession.java:357)
 at org.jboss.jmx.adaptor.snmp.agent.SnmpAgentService.startAgent(SnmpAgentService.java:577)
 at org.jboss.jmx.adaptor.snmp.agent.SnmpAgentService.startService(SnmpAgentService.java:496)
 at org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:289)

Since I am binding the two instances to different IPs, there shouldn't be any collisions in addresses, so I used netstat to check if those bindings were correct:

java 19054 rgenova 12u IPv4 -1117543693 UDP *:1161

From this line you can see port 1161 is listening on * instead of my private IP which causes the problem above when the second instance starts up. 1161 is configured in deploy/snmp-adaptor.sar/META-INF/jboss-service.xml

<mbean code="org.jboss.jmx.adaptor.snmp.agent.SnmpAgentService"
 name="jboss.jmx:name=SnmpAgent,service=snmp,type=adaptor">
...
 <attribute name="Port">1161</attribute>
...