JBOSS 5: Multiple instances but jvmRoute not modified

Question

I have JBoss 5 running in my machine with two configurations named default and myjboss . default configuration running with port-default and myjboss running with port01 .

While copying default to myjboss I didnt change jvmRoute at line

     <Engine name="jboss.web" defaultHost="localhost">

in file /home/virt01/jboss/jboss-5.1.0.GA/server/myjboss/deploy/jbossweb.sar/server.xml

Could somebody please explain the behavior of new instance myjboss as jvmRoute not mentioned to jvmRoute=myjboss .

Thank you.

Answer 1

The jvmRoute is used for load balancing purposes.

If you're using mod_cluster as your load balancer then you will not have a problem, because the mod_cluster will generate a UUID for each node that does not define a jvmRoute name. Source (Section 6.1.5)

If you use mod_jk instead then you must define them, because the worker nodes are defined manually and their names must match the server's jvmRoute. Source