8.7 High Availability of Servers

This topic describes the high availability of servers.

  1. Application Server - MDB_MODULE and the GWEJB EAR are deployed in a cluster. The cluster has 4 managed servers, if any server goes down then the messages are processed by other managed servers.
  2. JMS Provider - JMS is deployed on 2 managed servers, JMSServer1 and JMSServer2, if anyone goes down others will handle the messages.
  3. FileStore - Filestore is a cluster file system or database where if one node goes down then the other will handle the requests.
  4. DB Server - The database is installed in RAC mode where it has more than 1 node, if a node goes down then other nodes will handle messages.