{"id":6823,"date":"2014-01-21T21:45:58","date_gmt":"2014-01-22T01:45:58","guid":{"rendered":"http:\/\/onlineappsdba.com\/?p=6823"},"modified":"2016-05-04T10:37:51","modified_gmt":"2016-05-04T14:37:51","slug":"oia-cluster-deployment-for-high-availability-in-active-active-cluster","status":"publish","type":"post","link":"https:\/\/onlineappsdba.com\/index.php\/2014\/01\/21\/oia-cluster-deployment-for-high-availability-in-active-active-cluster\/","title":{"rendered":"OIA cluster deployment for High Availability in Active-Active Cluster"},"content":{"rendered":"

I discussed about Oracle Identity Analytics <\/strong>(OIA<\/strong>) installation<\/strong> here<\/a>.\u00a0In this post I am going to cover key points when deploying OIA in cluster<\/strong> for High Availability (Active-Active)<\/strong>.<\/p>\n

Note:<\/strong> This post assumes that you are familiar with deploying OIA in single node and steps here are only specific to cluster configuration.<\/p>\n

 <\/p>\n

1.<\/strong> OIA is a J2EE application deployed on WebLogic Server. For High Availability on application tier, configure two or more managed server in WebLogic Cluster<\/a>\u00a0and\u00a0deploy OIA application on this WebLogic Cluster (Follow point 3-6 to create war file and deploy it to WebLogic Cluster ).<\/p>\n

2.<\/strong> For database tier configure Oracle Real Application Cluster (RAC)<\/strong> . In $RBACX_HOME\/conf\/jdbc.properties<\/strong> use SCAN listener<\/strong> and service name for OIA database.<\/p>\n

jdbc.url=jdbc:oracle:thin:@OIADB_SCAN_ADDRESS:DB_PORT\/RAC_SERVICE_NAME<\/span>
\njdbc.quartz.isClustered=true<\/span><\/p>\n

3.<\/strong> In file\u00a0$RBACX_STAGE\/WEB-INF\/application-context.xml<\/strong> look for bean id=”commManager”<\/strong> then<\/p>\n

a) Set Unique cluster name<\/strong> – for constructor-arg<\/strong> change value to a unique name like ‘cluster_oia’ (You can pick any name of your choice)<\/p>\n

<constructor-arg index=”0″ value=”cluster_oia”\/><\/span><\/p>\n

b) Add cluster members<\/strong> \u00a0– Uncomment constructor-arg index=”1″ and set *hostnames* of OIA cluster members<\/p>\n

<constructor-arg index=”1″ value=”OIA_HOST1;OIA_HOST2″\/><\/span><\/p>\n

c) Set property<\/strong> name “enabled” to “true”<\/p>\n

<property name=”enabled” value=”true”\/><\/span><\/p>\n

Note:<\/strong> Documentation says use IP address for OIA_HOST1 & OIA_HOST2 but you must consider using hostname (or virtual name) so that you can fail transparently to Disaster Recovery site<\/span><\/p>\n

.<\/p>\n

4. Configure searchConfiguration<\/strong> in\u00a0$RBACX_STAGE\/WEB-INF\/search-context.xml<\/strong> – In file search-context.xml<\/strong> look for bean id<\/strong> “searchConfiguration” and set contructor-arg<\/strong> value to 2<\/strong><\/p>\n

<!– Could be one of the following values<\/span>
\n 0: SINGLE_INSTANCE<\/span>
\n 1: RUNNING_IN_CLUSTER_NON_SHARED_INDEXES<\/span>
\n 2: RUNNING_IN_CLUSTER_SHARED_INDEXES –><\/span><\/p>\n

<constructor-arg index=”0″ type=”int” value=”2″\/><\/span><\/p>\n

b)<\/strong> In same file (search-context.xml) change indexLocation<\/strong> value to shared files system so that both nodes can see .indexes<\/strong><\/p>\n

<property name=”indexLocation” value=”\/full_path_of_shared_location\/.indexes”\/><\/span><\/p>\n

Note<\/strong>: You must copy content of .indexes<\/strong> from $RBACX_HOME\/.indexes to .indexes folder mentioned above in search-context.xml<\/strong> file<\/span><\/p>\n

.<\/p>\n

5.<\/strong> Configure oscache for clustering<\/strong> – Update $RBACX_STAGE\/WEB-INF\/classes\/oscache.properties<\/strong> and<\/p>\n

a)<\/strong> uncomment cache.event.listeners cache.event.listeners=com.opensymphony.oscache. plugins.clustersupport. JavaGroupsBroadcastingListener, com.opensymphony.oscache.extra. CacheMapAccessEventListenerImpl<\/p>\n

b)<\/strong> Uncomment cache.cluster.multicast.ip<\/p>\n

cache.cluster.multicast.ip=231.12.21.100<\/p>\n

 <\/p>\n

6.<\/strong> If you are configuring logging which is defined using $RBACX_STAGE\/WEB-INF\/log4j.properties<\/strong>\u00a0then ensure that value of\u00a0log4j.appender.file<\/strong>= is not shared across two servers (OIA server on different machine should be able to write to this log location)<\/p>\n

7.<\/strong> Time on servers where OIA is deployed in cluster must be in SYNC (Time on servers should be more than couple of seconds apart, use NTP Server)<\/p>\n

 <\/p>\n

Related\/References<\/strong><\/span><\/p>\n