IBM developerWorks: Wikis - WebSphere eXtreme Scale V6.1 User Guide

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The Java Message Service (JMS) based peer-to-peer replication mechanism is used in both the distributed and local ObjectGrid environment. It is an ObjectGrid core-to-core replication process and allows data updates flow among local ObjectGrids and distributed ObjectGrids. For example, with this mechanism you can move data updates from an ObjectGrid cluster to a local ObjectGrid, or from an ObjectGrid cluster to another ObjectGrid cluster in different system domains.

The JMS-based peer-to-peer replication mechanism is based on the built-in JMS-based ObjectGridEventListener, com.ibm.websphere.objectgrid.plugins.builtins.JMSObjectGridEventListener. For detailed information regarding enabling peer-to-peer replication mechanism, see JMSObjectGridEventListener API Documentation

The following is an Extensible Markup Language (XML) configuration example to enable a peer-to-peer replication mechanism on an ObjectGrid configuration:

JMS-based peer-to-peer replication mechanism xml configuration example

<bean id="ObjectGridEventListener" className="com.ibm.websphere.objectgrid.plugins.JMSObjectGridEventListener">
         <property name="replicationRole" type="java.lang.String" value="DUAL_ROLES" description="" />
         <property name="replicationStrategy" type="java.lang.String" value="PUSH" description="" />
         <property name="jms_topicConnectionFactoryJndiName" type="java.lang.String" value="defaultTCF" description="" />
         <property name="jms_topicJndiName" type="java.lang.String" value="defaultTopic" description="" />
         <property name="jms_topicName" type="java.lang.String" value="defaultTopic" description="" />
         <property name="jms_userid" type="java.lang.String" value="" description="" />
         <property name="jms_password" type="java.lang.String" value="" description="" />
         <property name="jndi_properties" type="java.lang.String" 
value="java.naming.factory.initial=org.apache.activemq.jndi.ActiveMQInitialContextFactory;java.naming.provider.url=tcp://localhost:61616;connectionFactoryNames=defaultTCF;topic.defaultTopic=defaultTopic"
 description="jndi properties" />
     </bean>

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