Calling Remote EJB between Jboss 7.1.1 servers

[bbr_developer]

Hi,

I have a problem when i try to call a remote ejb from one jboss 7 server (central server) to others jboss 7 servers (module servers). Every single server runs in different ports and different machines. The problem is that apparently the central server only supports a unique ejb receiver, therefore the central server only connects to a one module server. I followed the instructions in https://docs.jboss.org/author/display/AS71/EJB+invocations+from+a+remote+server+instance, and its works when connect one module server, but i need to connect more.

My standalone-full.xml looks like:

...

<security-realm name="usr-ejb-security-realm">

      <server-identities>

           <secret value="MTIzcXdl"/>

      </server-identities>

</security-realm>

<security-realm name="com-ejb-security-realm">

      <server-identities>

           <secret value="MTIzcXdl"/>

     </server-identities>

</security-realm>

...

<outbound-connections>

     <remote-outbound-connection name="usr-remote-ejb-connection" outbound-socket-binding-ref="usr-remote-ejb" username="appuser" security-realm="usr-ejb-security-realm">

          <properties>

               <property name="SASL_POLICY_NOANONYMOUS" value="false"/>

               <property name="SSL_ENABLED" value="false"/>

          </properties>

     </remote-outbound-connection>

     <remote-outbound-connection name="com-remote-ejb-connection" outbound-socket-binding-ref="com-remote-ejb" username="appuser" security-realm="com-ejb-security-realm">

          <properties>

               <property name="SASL_POLICY_NOANONYMOUS" value="false"/>

               <property name="SSL_ENABLED" value="false"/>

          </properties>

      </remote-outbound-connection>

</outbound-connections>

....

<outbound-socket-binding name="usr-remote-ejb">

     <remote-destination host="user.regional.server" port="1199"/> <!-- host 1 -->

</outbound-socket-binding>

<outbound-socket-binding name="com-remote-ejb">

     <remote-destination host="commercial.regional.server" port="1299"/> <!-- host 2-->

</outbound-socket-binding>

...

My jboss-ejb-client.xml looks like:

<?xml version="1.0" encoding="UTF-8"?>

<p:jboss-ejb-client xmlns:p="urn:jboss:ejb-client:1.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="urn:jboss:ejb-client:1.0 jboss-ejb-client_1_0.xsd ">

  <client-context>

    <ejb-receivers exclude-local-receiver="true" local-receiver-pass-by-value="true">

      <remoting-ejb-receiver outbound-connection-ref="usr-remote-ejb-connection"/>

      <remoting-ejb-receiver outbound-connection-ref="com-remote-ejb-connection"/>

    </ejb-receivers>  

  </client-context>

</p:jboss-ejb-client>

In the server.log...

12:24:20,625 INFO  [org.jboss.ejb.client.remoting.VersionReceiver] (Remoting "machine-bbr" task-2) Received server version 1 and marshalling strategies [river]

12:24:20,632 INFO  [org.jboss.ejb.client.remoting.RemotingConnectionEJBReceiver] (MSC service thread 1-8) Successful version handshake completed for receiver context EJBReceiverContext{clientContext=org.jboss.ejb.client.EJBClientContext@7b5a3b00, receiver=Remoting connection EJB receiver [connection=Remoting connection <56e45c8>,channel=jboss.ejb,nodename=machine-bbr]} on channel Channel ID 90b506d0 (outbound) of Remoting connection 03155ba4 to commercial.regional.server/<host 2>:1299

12:24:20,655 WARN  [org.jboss.ejb.client.remoting.ChannelAssociation] (Remoting "machine-bbr" task-3) Unsupported message received with header 0xffffffff

But, for user.regional.server does not create a EJBReceiverContext. And when calling remote ejb throws...

java.lang.IllegalStateException: No EJB receiver available for handling [appName:ModuleOneEAR,modulename:ModuleOneManager,distinctname:] combination for invocation context org.jboss.ejb.client.EJBClientInvocationContext@d8c07f9

Please a need your help!

Thanks!

[jaikiran]

It should be able to connect to the other server and create a receiver. Are those 2 server instances running on the same machine?

[bbr_developer]

I have tried with the modules in the same machine for testing purposes, and modules on different machines with the same results. Are there any restrictions for servers on the same machine?

[jaikiran]

If two EJB receivers have the same node name then the second EJB receiver which gets registered is ignored and won't be registered. If you are running 2 instances on the same server then by default those 2 share the same jboss.node.name. You have to pass unique names for each instance (-Djboss.node.name) for them to be registered. This is explained in the article you linked as a "Note".

[bbr_developer]

Thanks a lot!!!!. That detail has resolved my problem.