Chapter 7 Load Balancing, Failover, and Component Availability

This chapter discusses:

Load balancing - optimizes performance for your EAServer cluster by adjusting the load across the servers.
Component deployment - you can restrict access to components by deploying them to a subset of servers within a cluster, or make them available from all servers.
High availability - an EAServer cluster provides redundancy (high availability) of business components and services in case a server within a cluster fails.
Automatic component failover - allows a client's object reference to be usable across servers should a server within a cluster fail.
Sybase Failover for high availability systems - you can implement the Adaptive Server Enterprise failover feature with EAServer database connectivity using Java Connection Management (JCM).

To enable these features, you must first create a server cluster (a group of servers running on different machines). The servers in a cluster share the workload and provide client services even if one or more servers within the cluster fails or is offline. See Chapter 6, "Clusters and Synchronization" for information about creating a cluster.