Cluster failover of EJB2 Stateless Session Bean (client proxy) did not work

Issue

Two (or more) servers contain a EJB2 StatelessSessionBean in cluster mode.

A (remote) client application that uses these EJBs.

The problem is:

• When both servers are started, the client requests are routed on both servers in a sequential and everything works normally.
• When the first server is down, all client requests are redirected correctly to the second server, and everything works normally.

• If second server is stopped and it starts the first server, both servers are down for a moment, the client application can not find the EJB server, and an exception is shown

  org.jboss.invocation.ServiceUnavailableException: 1921622105 Service  unavailable for calling method throws java.rmi.RemoteException public  abstract *****, javax.ejb.CreateException at  org.jboss.invocation.unified.interfaces.UnifiedInvokerHAProxy.invoke  (UnifiedInvokerHAProxy.java: 387) 
  at org.jboss.invocation.InvokerInterceptor.invokeInvoker (InvokerInterceptor.java: 365) 
  at org.jboss.invocation.InvokerInterceptor.invoke (InvokerInterceptor.java: 197) 
  at org.jboss.proxy.ejb.RetryInterceptor.invoke (RetryInterceptor.java: 177)
  at org.jboss.proxy.TransactionInterceptor.invoke (TransactionInterceptor.java: 61)
  at org.jboss.proxy.ejb.SecurityContextInterceptor.invoke (SecurityContextInterceptor.java: 64)
  at org.jboss.proxy.SecurityInterceptor.invoke (SecurityInterceptor.java: 68)
  at org.jboss.proxy.ejb.HomeInterceptor.invoke (HomeInterceptor.java: 184)
  at org.jboss.proxy.ClientContainer.invoke (ClientContainer.java: 101)
  Proxy578.create at $ (Unknown Source)