Failover

Failover support allows stateful user processing to continue on a clustered, multinode system when one of the nodes fails or is taken offline. Fault tolerant systems support failover through redundant hardware and software architectures. For example, within a three tier architecture, at the application tier level, multiple nodes or JVMs would support application tier failover.

PRPC supports automatic failover of HTTP sessions in Java EE environments when required passivation settings are defined in the Initialization/PersistRequestor entry of the prconfig.xml file or Dynamic System Settings.

Additionally, high availability features enable failover at the application tier and database levels. See the High Availability Administration Guide for details.

	Java EE, passivation, prconfig.xml file, prconfig setting
	Multinode clusters — Concepts and terms

Definitions