How to configure WildFly9 session replication based on TCP

[valsaraj007]

Tried the samples found using multicast and faced issues with detecting automatically. How to configure WildFly9 session replication based on TCP?

[jaysensharma]

You need to just configure the "urn:jboss:domain:jgroups" subsystem to use the  TCPPING  instead of MPING as following

<subsystem xmlns="urn:jboss:domain:jgroups:2.0" default-stack="tcpping">     <stack name="tcpping">         <transport type="TCP" socket-binding="jgroups-tcp"/>         <protocol type="TCPPING">             <property name="initial_hosts">192.168.10.1[7600],192.168.10.2[7600]</property>             <property name="port_range">10</property>             <property name="timeout">3000</property>             <property name="num_initial_members">2</property>         </protocol>         <protocol type="MERGE2"/>         <protocol type="FD_SOCK" socket-binding="jgroups-tcp-fd"/>         <protocol type="FD"/>         <protocol type="VERIFY_SUSPECT"/>         <protocol type="BARRIER"/>         <protocol type="pbcast.NAKACK"/>         <protocol type="UNICAST2"/>         <protocol type="pbcast.STABLE"/>         <protocol type="pbcast.GMS"/>         <protocol type="UFC"/>         <protocol type="MFC"/>         <protocol type="FRAG2"/>         <protocol type="RSVP"/>     </stack> </subsystem>

Regards

Jay SenSharma

[valsaraj007]

Hi Jay,

Here is the jgroups conf in wildlfy 9:

<subsystem xmlns="urn:jboss:domain:jgroups:3.0">

                <channels default="ee">

                    <channel name="ee"/>

                </channels>

                <stacks default="udp">

                    <stack name="udp">

                        <transport type="UDP" socket-binding="jgroups-udp"/>

                        <protocol type="PING"/>

                        <protocol type="MERGE3"/>

                        <protocol type="FD_SOCK" socket-binding="jgroups-udp-fd"/>

                        <protocol type="FD_ALL"/>

                        <protocol type="VERIFY_SUSPECT"/>

                        <protocol type="pbcast.NAKACK2"/>

                        <protocol type="UNICAST3"/>

                        <protocol type="pbcast.STABLE"/>

                        <protocol type="pbcast.GMS"/>

                        <protocol type="UFC"/>

                        <protocol type="MFC"/>

                        <protocol type="FRAG2"/>

                        <protocol type="RSVP"/>

                    </stack>

                    <stack name="tcp">

                        <transport type="TCP" socket-binding="jgroups-tcp"/>

                        <protocol type="MPING" socket-binding="jgroups-mping"/>

                        <protocol type="MERGE3"/>

                        <protocol type="FD_SOCK" socket-binding="jgroups-tcp-fd"/>

                        <protocol type="FD"/>

                        <protocol type="VERIFY_SUSPECT"/>

                        <protocol type="pbcast.NAKACK2"/>

                        <protocol type="UNICAST3"/>

                        <protocol type="pbcast.STABLE"/>

                        <protocol type="pbcast.GMS"/>

                        <protocol type="MFC"/>

                        <protocol type="FRAG2"/>

                        <protocol type="RSVP"/>

                    </stack>

                </stacks>

            </subsystem>

What change we need here?

Thank you!

[hmundeepi]

I've used Gossip Router  Protocol on TCP Stack to achieve the same.

Step 1: Change "10.0.33.70" to the IPs where Gossip router is listening in the below configuration file. 

                    <property name="initial_hosts">

                         10.0.33.70[12001]   

                    </property>

Step 2: Start Gossip router in all the system using below command

$ java -classpath /opt/wildfly-8.2.1.Final/modules/system/layers/base/org/jgroups/main/jgroups-3.4.5.Final.jar:/opt/wildfly-8.2.1.Final/modules/system/layers/base/org/jgroups/main/jgroups-3.4.5.Final.jar org.jgroups.stack.GossipRouter -port 12001

Step 3: Start Wildfly Server.

Not check it. Yes, it will work smoothly.

Find below Jgroups configuration settings:

<subsystem xmlns="urn:jboss:domain:jgroups:2.0" default-stack="tcp">

            <stack name="udp">

                <transport type="UDP" socket-binding="jgroups-udp">

        <property name="ip_mcast">

                        false

                    </property>

                </transport>

                <protocol type="MERGE3"/>

                <protocol type="FD_SOCK" socket-binding="jgroups-udp-fd"/>

                <protocol type="FD_ALL"/>

                <protocol type="VERIFY_SUSPECT"/>

                <protocol type="pbcast.NAKACK2"/>

                <protocol type="UNICAST3"/>

                <protocol type="pbcast.STABLE"/>

                <protocol type="pbcast.GMS"/>

                <protocol type="UFC"/>

                <protocol type="MFC"/>

                <protocol type="FRAG2"/>

                <protocol type="RSVP"/>

            </stack>

            <stack name="tcp">

                <transport type="TCP" socket-binding="jgroups-tcp"/>

                <protocol type="TCPGOSSIP">

                    <property name="initial_hosts">

                         10.0.33.70[12001]    

                    </property>

                    <property name="num_initial_members">

                        2

                    </property>

                </protocol>

                <protocol type="MERGE2"/>

                <protocol type="FD_SOCK" socket-binding="jgroups-tcp-fd"/>

                <protocol type="FD"/>

                <protocol type="VERIFY_SUSPECT"/>

                <protocol type="pbcast.NAKACK2">

                    <property name="use_mcast_xmit">

                        false

                    </property>

                </protocol>

                <protocol type="UNICAST3"/>

                <protocol type="pbcast.STABLE"/>

                <protocol type="pbcast.GMS"/>

                <protocol type="MFC"/>

                <protocol type="FRAG2"/>

                <protocol type="RSVP"/>

                 </stack>

        </subsystem>

Thanks a lot and Best regards,

Himanshu Mundeepi