Are the transitions or nodes asynchronous? If so, make sure that your queues backing up the jms are also clustered.
Which version of App Server you are using ? Could you tell more about the infrastructure you are using,which MQ Server? ? Are you using JBoss Remoting , if so which version?
We are using jboss-4.2.3.GA with Jboss ESB 4.4-GA, Jboss Messaging 1.4.2-GA.
also We have different types of datasources defined :
a) In section "6.2 : Target Jboss DS to oracle" , We are using xa-datasource.
b) In section "8.2 Juddi" we are using local-tx-datasource.
c) "8.3 Service Bus" has local-tx-datasource.
d) "8.4 JBpm" has xa-datasource.
I am not sure if this is right?
Should we using same type of datasources at all the places for HA?
pls let me know if you guys need any other info.