Brian Walck

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Through advanced clustering capabilities, BEA WebLogic Server-based e-business applications can be scaled across multiple servers. (Note: WebLogic Server supports multiple types of clustering, only one of which is relevant here - what is referred to as Web Clustering. In Web Clustering, the clustering of the HTTP or presentation layer of the Web application is addressed. This is what is referred to here.) Availability is enhanced by replicating application components and their state, as well as client session state information. In the event of the failure of a server mid-session, the client's session can be restored on another server without loss of session data. The WebLogic Server cluster makes this functionality transparent to clients who view the cluster as a single "virtual server." As software infrastructure evolved to include specialized applications servers... (more)