Jboss Eap - mod_cluster - to prevent jboss talking to each Other

Question

I have a jboss setup with 2 jboss instances on one VM. Each of the 2 jboss talk to 2 apaches on same VM.

Apache 1 apache listen port is 82

<VirtualHost 192.168.1.2:6262>

    <Directory />
        Order deny,allow
        Allow from all
    </Directory>

  KeepAliveTimeout 60
  MaxKeepAliveRequests 0

  ManagerBalancerName box1_cluster
  ServerAdvertise Off
# AdvertiseFrequency 5
  EnableMCPMReceive On

  <Location /mod_cluster-manager>
    SetHandler mod_cluster-manager
    Order deny,allow
    Allow from all
  </Location>
</VirtualHost>

jboss 1

        <subsystem xmlns="urn:jboss:domain:modcluster:1.1">
          <mod-cluster-config advertise-socket="modcluster" connector="ajp" proxy-list="192.168.1.2:6262" balancer="box1_cluster">
            <dynamic-load-provider>
              <load-metric type="busyness"/>
            </dynamic-load-provider>
          </mod-cluster-config>
        </subsystem>

  <socket-binding-group name="standard-sockets" default-interface="public" port-offset="${jboss.socket.binding.port-offset:0}">


        <socket-binding name="modcluster" port="0" multicast-address="224.0.1.105" multicast-port="23364"/>
        <outbound-socket-binding name="mail-smtp">
            <remote-destination host="localhost" port="25"/>
        </outbound-socket-binding>
    </socket-binding-group>

Apache 2,listen port is 83

<VirtualHost 192.168.1.2:6263>

    <Directory />
        Order deny,allow
        Allow from all
    </Directory>

  KeepAliveTimeout 60
  MaxKeepAliveRequests 0

  ManagerBalancerName box2_cluster
  ServerAdvertise Off
# AdvertiseFrequency 5
  EnableMCPMReceive On

  <Location /mod_cluster-manager>
    SetHandler mod_cluster-manager
    Order deny,allow
    Allow from all
  </Location>

</VirtualHost>

jboss 2

     <subsystem xmlns="urn:jboss:domain:modcluster:1.1">
          <mod-cluster-config advertise-socket="modcluster" connector="ajp" proxy-list="192.168.1.2:6263" balancer="box2_cluster">
            <dynamic-load-provider>
              <load-metric type="busyness"/>
            </dynamic-load-provider>
          </mod-cluster-config>
        </subsystem>

  <socket-binding-group name="standard-sockets" default-interface="public" port-offset="${jboss.socket.binding.port-offset:0}">

        <socket-binding name="txn-status-manager" port="4713"/>
        <socket-binding name="modcluster" port="0" multicast-address="224.0.1.105" multicast-port="23364"/>
        <outbound-socket-binding name="mail-smtp">
            <remote-destination host="localhost" port="25"/>
        </outbound-socket-binding>
    </socket-binding-group>

The apache works well and connect to jboss .The apache also detects all deployed apps.

Questions:-

When the

192.168.1.2:6262/mod_cluster-manager is done it shows the applications deployed on the 2nd jboss. I want to make sure that the apache 1 detects application that are deployed in jboss 1 and no other applications. Basically i want to use mod_cluster but dont want one jboss to talk to another.I want to use mod_cluster for jboss to autopublish applications to apache.But i dont want 2 jboss to talk to each other.

Are you starting the two instances in a cluster and does your app have `distributable` tag set in the deployment descriptor? Otherwise clustering service by default is started lazily, so you should not see two jboss instances cross-talking in the default behavior of JBoss. Sounds like you want to do load balancing but no jboss clustering. — CoolBeans, Sep 08 '13 at 17:16
First of all, you incorrectly tagged this as [tag:cluster-analysis] (a data mining technique, known as clustering). Secondly, this is off-topic, and should be migrated to serverfault, as this obviously is a server administration, not a software development question. — Has QUIT--Anony-Mousse, Sep 08 '13 at 19:01
hello CoolBeans, The 2 jboss instances hold different applications.The applications in both instnaces are different are not to be clustered.The purpose of using mod_cluster is to autodetect the applications by apache.But at present both apaches detect applications on both jboss individually.One apache should only detect its own jboss applications . How can this be acheieved? — user2758406, Sep 08 '13 at 19:30
@CoolBeans Hello Coolbeans ,Could you please check if there is a solution to the problem that i have reported. — user2758406, Sep 11 '13 at 19:04

score 1 · Answer 1 · answered Sep 11 '13 at 20:29

1

If you do not want two JBoss instances cross talk (since they are not in the same cluster) then you should have the 2 nodes listen on unique multicast addresses.

By the way, if you do not use clustering you are losing the ability of session replication and high availability.

answered Sep 11 '13 at 20:29

CoolBeans

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' " multicast-port="23364"/> ' There are 2 jboss nodes and both have the multicast address of 224.0.1.105 .So changing this address will solve? – user2758406 Sep 11 '13 at 22:16
If i add different multicast IPs for both the jboss nodes that will solve the problem? – user2758406 Sep 11 '13 at 22:17
Yes that's what I said, different multicast address. When you start up JBoss you can pass the multicast address like this - `-u x.x.x.x`. – CoolBeans Sep 11 '13 at 22:19
@user2758406 - did the unique multicast address help solve your problem? – CoolBeans Sep 13 '13 at 02:12
Hello Coolbeans..No multicast address change did not .I changed port and IP both in the jboss (say name is A).There are 2 more apaches (say name C,D) in my box.Those 2 apaches (C,D) kept on showing the jboss instance even after I had changed the multicastIP/port to different value and restarted the jboss (A).The other 2 apaches (C,D) should have stopped showing the Jboss A when A was restarted after multicast IP change.I was using http://IP:6262/mod_cluster-manager – user2758406 Sep 16 '13 at 20:32

Jboss Eap - mod_cluster - to prevent jboss talking to each Other

1 Answers1