Reverse Proxy EJB3 Calls?

[Calum Gardiner]

I'm looking at clustering an existing application deployed to Payara which uses a spoke and hub architecture. 

[client] ---<https jax-ws>---> [spoke payara] ---<ejb3 rmi-iiop>---> [hub payara]

Typically the spoke servers talk to the hub using EJB3 (RMI-IIOP) calls but if both the spoke and hub servers were replaced with clusters then the calls between the clusters would need to be balanced in some way.

[client] ---<https jax-ws>---> [apache] ---<https/ajp jax-ws>---> [spoke payara] ---<ejb3 rmi-iiop>---> [???????]  ---<???????>---> [hub payara]

I've read the high availability administration guide on load balancing RMI-IIOP but would prefer if there was no client changes, is it possible to load balance like HTTP calls where the balancing is done transparently through a load balancing server?

[Lenny Primak]

I think this can be managed with very limited client changes, i.e. adding environment variables to InitialContext()

I believe other Payara clients have successfully done so.

I also believe Payara's CORBA supports at least round-robin load balancing