Thank for the reply.

My idea is to build application which would have LB in front but also I want to distribute ejb calls through cluster. I have some methods that can be break into couple of calls to the database(read only) to get speed.

Is this a bad idea? Does wildfly always make call to local ejb and in which case call is distributed?

Paul Ferraro wrote:

 

See: https://docs.jboss.org/author/display/WFLY8/EJB+invocations+from+a+remote+server+instance

Thank you for the link. It works as described. But I have question about cluster. I want to expand this example and to call same ejb deployed in cluster environment. What address should I specify into standalone-full.xml. My cluster has two instances: 10.8.10.204 and 10.8.10.205.

If I specify 10.8.10.204 in standalone-full.xml I am getting error:

<code>

[org.jboss.ejb.client.remoting.RemotingConnectionClusterNodeManager] (default task-4) Could not create a connection for cluster node ClusterNode{clusterName='ejb', nodeName='slave:server-three-slave', clientMappings=[ClientMapping{sourceNetworkAddress=/0:0:0:0:0:0:0:0, sourceNetworkMaskBits=0, destinationAddress='10.8.10.205', destinationPort=8330}], resolvedDestination=[Destination address=10.8.10.205, destination port=8330]} in cluster ejb: java.lang.RuntimeException: Operation failed with status WAITING 

</code>

If I shutdown instance on 10.8.10.205 it works.

P.S.

I have changed client servlet where I have add for loop:

<code>

for (int i = 0; i < 10; i++) {

     System.out.println(bean.greet());

}

</code>

I have solved that issue. I specified this:

<code>

<outbound-socket-binding name="remote-ejb1">

                <remote-destination host="10.8.10.204" port="8230"/>

            </outbound-socket-binding>

            <outbound-socket-binding name="remote-ejb2">

                <remote-destination host="10.8.10.205" port="8230"/>

            </outbound-socket-binding>

</code>

in standalone-full.xml and that work as expected. Even load balancing works well. I'm now trying to deploy client application at the same cluster where ejb is deployed but I was wondering where to put above xml snippet to make this to work?

Is this possible?

Thanks.

My cluster is configured in domain mode following this url https://docs.jboss.org/author/display/WFLY8/WildFly+8+Cluster+Howto.

Do I need to put remote-outbound-connection and corresponding outbound-socket-binding in standalone-full.xml because config files for this mode are domain.xml and host.xml?

Thank both of you for replies. I have make some progress but now i'm facing a strange issue.

I have created two server groups - one for server app and one for client app. My goal is to deploy and client and server app to cluster.

Deployment of server app is done without problems. Deployment of client apps causing this error:

On master node:

<code>

[Server:web-client] 13:30:01,190 INFO  [org.jboss.ejb.client.remoting] (default task-5) EJBCLIENT000017: Received server version 2 and marshalling strategies [river]

[Server:web-client] 13:30:01,199 INFO  [org.jboss.ejb.client.remoting] (MSC service thread 1-1) EJBCLIENT000013: Successful version handshake completed for receiver context EJBReceiverContext{clientContext=org.jboss.ejb.client.EJBClientContext@66321800, receiver=Remoting connection EJB receiver [connection=Remoting connection <4f4f0770>,channel=jboss.ejb,nodename=slave:web-server-slave]} on channel Channel ID 987816ab (outbound) of Remoting connection 5303f245 to test/10.8.10.205:8380

[Server:web-client] 13:30:01,982 INFO  [org.wildfly.extension.undertow] (MSC service thread 1-2) JBAS017534: Registered web context: /client-app-web

[Server:web-client] 13:30:02,219 INFO  [org.jboss.as.server] (host-controller-connection-threads - 1) JBAS018559: Deployed "client-app-ear-1.0-SNAPSHOT.ear" (runtime-name : "client-app-ear-1.0-SNAPSHOT.ear")

[Server:web-client] 13:30:06,301 INFO  [org.jboss.ejb.client.remoting.RemotingConnectionClusterNodeManager] (ejb-client-cluster-node-connection-creation-4-thread-2) Could not create a connection for cluster node ClusterNode{clusterName='ejb', nodeName='master:web-server', clientMappings=[ClientMapping{sourceNetworkAddress=/0:0:0:0:0:0:0:0, sourceNetworkMaskBits=0, destinationAddress='10.8.10.204', destinationPort=8380}], resolvedDestination=[Destination address=10.8.10.204, destination port=8380]} in cluster ejb: java.lang.RuntimeException: Operation failed with status WAITING

[Server:web-client] at org.jboss.ejb.client.remoting.IoFutureHelper.get(IoFutureHelper.java:94) [jboss-ejb-client-2.0.0.Final.jar:2.0.0.Final]

[Server:web-client] at org.jboss.ejb.client.remoting.ConnectionPool.getConnection(ConnectionPool.java:77) [jboss-ejb-client-2.0.0.Final.jar:2.0.0.Final]

[Server:web-client] at org.jboss.ejb.client.remoting.RemotingConnectionManager.getConnection(RemotingConnectionManager.java:51) [jboss-ejb-client-2.0.0.Final.jar:2.0.0.Final]

[Server:web-client] at org.jboss.ejb.client.remoting.RemotingConnectionClusterNodeManager.getEJBReceiver(RemotingConnectionClusterNodeManager.java:79) [jboss-ejb-client-2.0.0.Final.jar:2.0.0.Final]

[Server:web-client] at org.jboss.ejb.client.ClusterContext$EJBReceiverAssociationTask.call(ClusterContext.java:405) [jboss-ejb-client-2.0.0.Final.jar:2.0.0.Final]

[Server:web-client] at org.jboss.ejb.client.ClusterContext$EJBReceiverAssociationTask.call(ClusterContext.java:379) [jboss-ejb-client-2.0.0.Final.jar:2.0.0.Final]

[Server:web-client] at java.util.concurrent.FutureTask.run(FutureTask.java:262) [rt.jar:1.7.0_40]

[Server:web-client] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [rt.jar:1.7.0_40]

[Server:web-client] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [rt.jar:1.7.0_40]

[Server:web-client] at java.lang.Thread.run(Thread.java:724) [rt.jar:1.7.0_40]

[Server:web-client]

</code>

Same error is on the slave node except that address is 10.8.10.205. It's like client can not make connection to server on the same host.

When I run application with http://10.8.10.204:8580/client-app-web/Test all ejb calls are executed on 10.8.10.205 (slave). When I run application with http://10.8.10.205:8580/client-app-web/Test all ejbs are executed on 10.8.10.204.

My config in host.xml on 10.8.10.204 is:

<code>

<servers>

        <server name="web-client" group="client-web-app" auto-start="true">

            <socket-bindings port-offset="500"/>

        </server>

        <server name="web-server" group="server-web-app" auto-start="true">

            <socket-bindings port-offset="300"/>

       </server>

</code>

Config in host.xml on 10.8.10.205 is:

<code>

<servers>

        <server name="web-server-slave" group="server-web-app" auto-start="true">

            <socket-bindings port-offset="300"/>

        </server>

         <server name="web-client" group="client-web-app" auto-start="true">

            <socket-bindings port-offset="500"/>

       </server>

</servers>

</code>

Relevant part of domain.xml on both machines is:

<code>

<subsystem xmlns="urn:jboss:domain:remoting:2.0">

                <endpoint worker="default"/>

                <http-connector name="http-remoting-connector" connector-ref="default" security-realm="ApplicationRealm"/>

                 <outbound-connections>

                    <remote-outbound-connection name="remote-connection-war-ejb-1" outbound-socket-binding-ref="remote-war-1" username="ejb" security-realm="ejb-security-realm-1" protocol="http-remoting">

                        <properties>

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

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

                        </properties>

                    </remote-outbound-connection>

                    <remote-outbound-connection name="remote-connection-war-ejb-2" outbound-socket-binding-ref="remote-war-2" username="ejb" security-realm="ejb-security-realm-2" protocol="http-remoting">

                        <properties>

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

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

                        </properties>

                    </remote-outbound-connection>

                </outbound-connections>

           </subsystem>

</code>

<code>

<server-groups>

         <server-group name="server-web-app" profile="ha">

            <jvm name="default">

                <heap size="64m" max-size="512m"/>

            </jvm>

            <socket-binding-group ref="ha-sockets"/>

        </server-group>

        <server-group name="client-web-app" profile="default">

             <jvm name="default">

                <heap size="64m" max-size="512m"/>

            </jvm>

            <socket-binding-group ref="standard-sockets"/>

       </server-group>

    </server-groups>

</code>

and this

<code>

<socket-binding-group name="standard-sockets" default-interface="public">

            <!-- Needed for server groups using the 'default' profile  -->

            <socket-binding name="ajp" port="${jboss.ajp.port:8009}"/>

            <socket-binding name="http" port="${jboss.http.port:8080}"/>

            <socket-binding name="https" port="${jboss.https.port:8443}"/>

            <socket-binding name="txn-recovery-environment" port="4712"/>

            <socket-binding name="txn-status-manager" port="4713"/>

             <outbound-socket-binding name="mail-smtp">

               <remote-destination host="localhost" port="25"/>

             </outbound-socket-binding>

               <outbound-socket-binding name="remote-war-1">

                <remote-destination host="10.8.10.204" port="8380"/>

            </outbound-socket-binding>

            <outbound-socket-binding name="remote-war-2">

                <remote-destination host="10.8.10.205" port="8380"/>

            </outbound-socket-binding>

        </socket-binding-group>

</code>

Ping and telnet works as expected. Any ideas?

Thanks.