Coding Applications To Work With Adaptive Server® Enterprise Cluster Edition
With the release of Adaptive Server Enterprise Cluster Edition (ASE CE) in 2007, Sybase joined an exclusive club of enterprise database vendors that allow for high availability and redundancy within their database management systems—at the database server layer. While clustering isn’t a new idea, there are varying ideas (and computing architectures around those ideas) that have attempted to implement high availability within databases—all with varying degrees of success, complexity, and efficiency. Sybase’s point of view is that, while we may not be the first to have it, implementing clustering at the database level should be done with minimal complexity and very few “moving parts” that could lead to additional points of failure. We believe that we have delivered on this design goal. In addition, as part of this new high availability architecture, ASE CE added underlying resource management, workload management, smart connection migration, and intelligent failover of connections within the cluster itself—all without the need for major application changes.