Session replication is not working as expected in Red Hat JBoss Enterprise Application Platform - Version 6.3.0.GA - jboss

Question

I'm bit new to JBoss, could you please help me out in finding the root cause in the below mentioned issue.Thanks and much appreciated,
Issue: Session replication is not happening between master(domain
controller) and slave(host). Following are the logs,
From master:
[Server:server-three] 07:53:38,246 INFO [org.infinispan.remoting.transport.jgroups.JGroupsTransport] (ServerService Thread Pool -- 65) ISPN000078: Starting JGroups Channel
[Server:server-three] 07:53:38,260 INFO [stdout] (ServerService Thread Pool -- 65)
[Server:server-three] 07:53:38,260 INFO [stdout] (ServerService Thread Pool -- 65) -------------------------------------------------------------------
[Server:server-three] 07:53:38,261 INFO [stdout] (ServerService Thread Pool -- 65) GMS: address=master:server-three/web, cluster=web, physical address=10.78.216.145:7850
[Server:server-three] 07:53:38,261 INFO [stdout] (ServerService Thread Pool -- 65) -------------------------------------------------------------------
[Host Controller] 07:53:40,511 INFO [org.jboss.as.domain] (Host Controller Service Threads - 25) JBAS010918: Registered remote slave host "slave", JBoss EAP 6.3.0.GA (AS 7.4.0.Final-redhat-19)
[Server:server-three] 07:53:41,273 INFO [org.infinispan.remoting.transport.jgroups.JGroupsTransport] (ServerService Thread Pool -- 65) ISPN000094: Received new cluster view: [master:server-three/web|0] [master:server-three/web]
[Server:server-three] 07:53:41,275 INFO [org.infinispan.remoting.transport.jgroups.JGroupsTransport] (ServerService Thread Pool -- 65) ISPN000079: Cache local address is master:server-three/web, physical addresses are [10.78.216.145:7850]
[Server:server-three] 07:53:41,279 INFO [org.infinispan.factories.GlobalComponentRegistry] (ServerService Thread Pool -- 65) ISPN000128: Infinispan version: Infinispan 'Delirium' 5.2.10.Final
[Server:server-three] 07:53:41,288 INFO [org.jboss.as.clustering] (MSC service thread 1-6) JBAS010238: Number of cluster members: 1
From slave:
[Server:server-three-slave] 07:53:36,274 INFO [org.infinispan.remoting.transport.jgroups.JGroupsTransport] (ServerService Thread Pool -- 67) ISPN000078: Starting JGroups Channel
[Server:server-three-slave] 07:53:36,287 INFO [stdout] (ServerService Thread Pool -- 67)
[Server:server-three-slave] 07:53:36,287 INFO [stdout] (ServerService Thread Pool -- 67) -------------------------------------------------------------------
[Server:server-three-slave] 07:53:36,288 INFO [stdout] (ServerService Thread Pool -- 67) GMS: address=slave:server-three-slave/web, cluster=web, physical address=10.78.216.36:7850
[Server:server-three-slave] 07:53:36,288 INFO [stdout] (ServerService Thread Pool -- 67) -------------------------------------------------------------------
[Server:server-three-slave] 07:53:39,301 INFO [org.infinispan.remoting.transport.jgroups.JGroupsTransport] (ServerService Thread Pool -- 67) ISPN000094: Received new cluster view: [slave:server-three-slave/web|0] [slave:server-three-slave/web]
[Server:server-three-slave] 07:53:39,302 INFO [org.infinispan.remoting.transport.jgroups.JGroupsTransport] (ServerService Thread Pool -- 67) ISPN000079: Cache local address is slave:server-three-slave/web, physical addresses are [10.78.216.36:7850]
[Server:server-three-slave] 07:53:39,306 INFO [org.infinispan.factories.GlobalComponentRegistry] (ServerService Thread Pool -- 67) ISPN000128: Infinispan version: Infinispan 'Delirium' 5.2.10.Final
[Server:server-three-slave] 07:53:39,315 INFO [org.jboss.as.clustering] (MSC service thread 1-5) JBAS010238: Number of cluster members: 1
I'm advertising my cluster and i can see the both master and slave nodes are present in the UI,
https://10.78.X.X:8445/mod_cluster_manager,
I have disabled firewall and SELinux to avoid network problems.I believe, i have made all the required configurations in domain.xml and ssl.conf of httpd. I have also added <distributable/> tag and jboss-web.xml changes in my war. It'd be of more help if anyone of you direct me in a different direction as i'm totally lost,
Even i can see the following in my master log:
[Host Controller] 07:18:58,862 INFO [org.jboss.as.domain] (Host Controller Service Threads - 28) JBAS010918: Registered remote slave host "slave", JBoss EAP 6.3.0.GA (AS 7.4.0.Final-redhat-19)
[Server:server-three] 07:18:59,029 INFO [org.infinispan.remoting.transport.jgroups.JGroupsTransport] (ServerService Thread Pool -- 69) ISPN000094: Received new cluster view: [master:server-three/web|0] [master:server-three/web]
I have tried adding ProxyPass with stickySession, didn't get much luck. any suggestion or help will be much appreciated,
Thanks,
Joy.

Answer 1

The <distributable/> tag must be added to the web.xml file not in jboss-web.xml
Enable Session Replication in Your Application
Overview
To take advantage of the JBoss Enterprise Application Platform's High Availability (HA) > features, configure your application
to be distributable. This procedure shows how to do that, and then
explains some of the advanced configuration options you can use.
Required: Indicate that your application is distributable.
If your application is not marked as distributable, its sessions will
never be distributed. Add the <distributable /> element inside the
<web-app> tag of your application's web.xml discriptor file. Here
is an example.
<web-app xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"
version="2.4">
<distributable/>
</web-app>
See more: Chapter 7. Clustering in Web Applications