Entity component instance and query caching  EJB 2.0 support

Chapter 7: New Features in EAServer 4.0

In-memory state replication for stateful session components

EAServer 4.0 enhances the existing stateful failover architecture with support for failover in memory. This feature allows component instance state to be maintained on a pair of servers, without incurring the overhead of using a remote database to store component state. For more information, see Chapter 28, “Configuring Persistence for Stateful Session Components,” in the EAServer Programmer’s Guide.





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