How to setup different clusters in common IP

问题

I have many wildfly-8.2 nodes that has IP address 10.4.0.X. I need to group them in 2 different clusters. Unfortunately I received message from nodes that doesn't included in a cluster. Each cluster receives messages from all nodes since they are all under 10.4.0. Here is my mod_cluster configuration in Apache:

# MOD_CLUSTER_ADDS
<IfModule manager_module>
Listen 10.4.0.1:10001
ManagerBalancerName testbalancer

<VirtualHost 10.4.0.1:10001>
<Location />
 Order deny,allow
 Deny from all
 Allow from 10.4.0.
</Location>

KeepAliveTimeout 300
MaxKeepAliveRequests 0
#ServerAdvertise on http://10.4.0.1:10001
AdvertiseFrequency 5
#AdvertiseSecurityKey secret
#AdvertiseGroup 224.0.1.105:23364
EnableMCPMReceive


<Location /mod_cluster_manager>
   SetHandler mod_cluster-manager
   Order deny,allow
   Deny from all
   Allow from 10.4.0
</Location>

回答1:

I think this might be a good scenario to use widlfly in domain mode, that way you can configure multiple server groups (subclusters) and manage them centrally using a domain controller. A detailed tutorial is available here: http://blog.akquinet.de/2012/07/19/scalable-ha-clustering-with-jboss-as-7-eap-6/

The tutorial splits multiple server groups into multiple load balancer groups on mod_cluster.

To just configure individual nodes into different load balancer groups for mod_cluster (have not tried this myself!), you can use the lbgroup parameter in the mod-cluster-config:

 <subsystem xmlns="urn:jboss:domain:modcluster:1.1">  
        <mod-cluster-config advertise-socket="modcluster" 
        balancer="myBalancer" load-balancing-group="myLBGroup" 
        connector="ajp">  
            <dynamic-load-provider>  
                <load-metric type="busyness"/>  
            </dynamic-load-provider>  
        </mod-cluster-config>  
    </subsystem>

ref: https://developer.jboss.org/thread/203907

To actually separate the wildfly instances into separate clusters is another story. There used to be a property "jboss.partition.name" but this has been replaced by defining unique multicast address/port combinations for your cluster partitions within the subnet.

https://developer.jboss.org/thread/177877

So assuming you are using udp as your jgroups stack, you can change the multicast address using the "-u" command line parameter:

https://docs.jboss.org/author/display/WFLY8/Command+line+parameters#Commandlineparameters-defaultmulticastaddress

An alternative for configuring mod_cluster might be to disable advertising (nodes and mod_cluster) and use a static config in your standalone.xml:

<mod-cluster-config proxy-list="10.0.1.2:6667"/>

That way, the nodes will no longer advertise and the assignments to the different mod_cluster apache proxies would be static.

ref: https://developer.jboss.org/thread/218813

ref: https://access.redhat.com/documentation/en-US/JBoss_Enterprise_Application_Platform/6/html/Administration_and_Configuration_Guide/Configure_the_mod_cluster_Subsystem_to_Use_TCP.html

来源：https://stackoverflow.com/questions/31673133/how-to-setup-different-clusters-in-common-ip

标签

wildfly-8