JRun 4 Improves Cluster Features
Macromedia's JRun 4 brings major changes to the Java application server.Macromedias JRun 4 brings major changes to the Java application server. This version, which started shipping May 13, supports Java 2 Enterprise Edition 1.3 standards, including EJB 2.0 and the built-in message queuing and object/relational mapping the Enterprise JavaBeans standard requires. JRun 4 has redesigned, more sophisticated load balancing and failover support, including in-memory session state replication to ensure nothing is lost if a server crashes. Macromedia has added these clustering features to the base JRun product, making it perhaps the least expensive clustered Java application server on the market.
Hot-deployment support for all components has been added; it also improves uptime.