What is 192.168.10.122 ?
Should I configure MOD_Cluster in BRPM node 1 and node 2?
That is the address of the load balancer host. You only need to setup mod_cluster once. It could be on its own host or on one of the other node hosts. The nodes broadcast to the load balancer. So, if you have more nodes on the network than the ones you want on the cluster, you will likely use another approach than the standard 'Advertising' option.
Should Load Balancer to available and configured to resolve BRPM nodes before I configure cluster in BROM?
Yes, it would be best to setup the load balancer and then configure the nodes for the BPRM cluster.
Should I do same thing in node 1 also?
Yes, it should be applied to all nodes. Make sure to change the ip or hostname and node name per node.
I should apply these configuration for both Nodes, am I right?
Yes again. All nodes need access ot the shared folder for use with automation.
What about the best JVM_OPTS setting?
I have 32 bit RAM server
Default: JAVA_OPTS = "-XX:PermSize=64m -Xmx128m -Xms32m -Xss2048k"
What would be the recomended JVM_OPTs for 32 bit GB RAM?
MOD_Cluster is only needed, IMO, if you have no hardware LB in the environment. This is a software LB and becomes a single point of failure on one of the nodes if used.
Rather, get the jgroups working using the multi-cast config ensuring that the ports are the same on each host, and configure a 3rd party LB to share HTTP traffic to each node. the LB should be capable of detecting a failure to serve HTTP requests from any failed nodes.