Is there any sample configuration that shows how to setup a cluster where 2 separate JVM instances are configured using a clustered Modeshape?

I am using Modeshape 5..2-Final without Wildfly.

I am unable to get the 2 instances to work correctly in clustered mode.

I setup the jgroups-config.xml and the modeshape JSON configuration and each instance starts up and says its in  a cluster:

-------------------------------------------------------------------

GMS: address=ip-172-xx-x-xxx-xxxx, cluster=cluster1, physical address=172.xx.x.xxx:7800

------------------------------------------------------------------

The problem I am seeing is if I login to one instance and make a change to modeshape (i.e. add a node) the second instance doesn't see that change.  The only why I can get the other instance to see the change is if that instance adds a new node in the system upon which then its able to query and see the updates from the other instance.

Any help is appreciated.

I have tried a number of jgroup configurations.  Here is a sample of one attempt that doesnt seem to work:

Host A and Host B have this jgroup configuration with their respective IP address in the <HOST_A/B_IP> :

jgroups-config.xml

<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

        xmlns="urn:org:jgroups"

        xsi:schemaLocation="urn:org:jgroups http://www.jgroups.org/schema/jgroups.xsd">

      <TCP bind_port="7800"

         recv_buf_size="${tcp.recv_buf_size:5M}"

         send_buf_size="${tcp.send_buf_size:5M}"

         max_bundle_size="64K"

         max_bundle_timeout="30"

         sock_conn_timeout="3000"

         timer_type="new3"

         timer.min_threads="4"

         timer.max_threads="10"

         timer.keep_alive_time="3000"

         timer.queue_max_size="500"

         thread_pool.enabled="false"

         oob_thread_pool.enabled="false"/>

<TCPPING initial_hosts="<HOST_A_IP>[7800],<HOST_B_IP>[7800]}"         

port_range="0" num_initial_members="2" />

    <MPING/>

    <MERGE3 min_interval="10000"

            max_interval="30000"/>

    <FD timeout="3000" max_tries="3" />

    <VERIFY_SUSPECT timeout="1500" />

    <BARRIER />

    <pbcast.NAKACK2 use_mcast_xmit="false"

                    discard_delivered_msgs="true"/>

    <UNICAST3 />

    <pbcast.STABLE stability_delay="1000" desired_avg_gossip="50000"

                   max_bytes="4M"/>

    <pbcast.GMS join_timeout="3000" view_bundling="true"/>

    <MFC max_credits="2M"

         min_threshold="0.4"/>

    <FRAG2 frag_size="60K" />

    <pbcast.STATE_TRANSFER/>

</config>

modeshape-config.json

"clustering" :  {

        "clusterName" : "cluster1",

        "configuration" : "jgroups-config.xml",

        "locking" : "db"

    },

Again Any help is appreciated.

Thanks.

-Scott