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1. Make the following configuration changes in the <ES_HOME>/repository/conf/axis2/axis2.xml file. These changes are related to clustering.
   1. Enable clustering for this node by setting enable to true in the clustering tag.
      <clustering class="org.wso2.carbon.core.clustering.hazelcast.HazelcastClusteringAgent" enable="true">
   2. Set the membershipScheme parameter to wka to enable the well-known address registration method (this node will send cluster initiation messages to WKA members that we define later).
      <parameter name="membershipScheme">wka</parameter> 
   3. Specify the name of the cluster domain that this node is set to join.
      <parameter name="domain">wso2.es.domain</parameter>
   4. Specify the host used to communicate cluster messages. This is the IP address of the publisher node you are configuring.
      <parameter name="localMemberHost">xxx.xxx.xxx.xx1</parameter>
   5. Specify the port used to communicate cluster messages:
      <parameter name="localMemberPort">4250</parameter>

   6. Specify the well known member. Here, the well known member is the other publisher node.

      Code Block
      language xml
      <members> <member> <hostName>xxx.xxx.xxx.xx2</hostName> <port>4254</port> </member> </members>

   7. The subDomain property must be commented out since this setup does not involve setup that supports worker manager separation.

      Code Block
      language xml
      <parameter name="properties"> <property name="backendServerURL" value="https://${hostName}:${httpsPort}/services/"/> <property name="mgtConsoleURL" value="https://${hostName}:${httpsPort}/"/> <!--property name="subDomain" value="mgt"/--> </parameter>

2. Make the following configuration changes change in the <ES_HOME>/repository/conf/carbon.xml file. Configure the HostName for each publisher node.
   <HostName>publisher.es-wso2.com</HostName> 

   Enable SVN-based deployment synchronization with the AutoCommit property marked as true.

   Code Block

   language	xml

   <DeploymentSynchronizer> <Enabled>true</Enabled> <AutoCommit>true</AutoCommit> <AutoCheckout>true</AutoCheckout> <RepositoryType>svn</RepositoryType> <SvnUrl>xxxxxxxxxxxxxxxxx</SvnUrl> <SvnUser>xxxx</SvnUser> <SvnPassword>xxxx</SvnPassword> <SvnUrlAppendTenantId>true</SvnUrlAppendTenantId> </DeploymentSynchronizer>
3. Map the host names to the IP. Add the following host entries to your DNS, or “/etc/hosts” file (in Linux) in all the nodes of the cluster. You have to map the host names with the IP address of the load balancer.
   <IP-of-Nginx> publisher.es-wso2.com 

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