Clustering

The MobileFirst Server creates a cluster by deploying multiple servers that share the database instance.

The basic setup consists of the load balancer, the cluster nodes, and a database shared by the cluster nodes.

All cluster nodes are identical; that is, the content of the installation folder is the same in all nodes. Cluster nodes do not synchronize with each other at run time. All management data is in the MobileFirst administration services, which verify that all cluster nodes have the same data. With WAS ND, we can use built in clustering support for distributing the project.WAR (and the MobileFirst Shared library). See IBM WebSphere Application Server V8 user documentation.

MobileFirst Server can run on a VMware virtual machine. In such cases, one machine image is created and then deployed again and again.

IBM MobileFirst Platform Foundation is stateful. It caches session state within the server memory. The result is that if one MobileFirst Server is taken offline, active user sessions are lost and the client is asked to log on again.

Parent topic: High availability