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Clustering Oracle9iAS Web Cache instances together increases the capacity of the cache and the number of requests that can be served concurrently. By automatically partitioning a site's content across multiple cache peers and replicating the most popular content among those peers, Oracle9iAS Web Cache can store more content and can support more browser connections.

Cache clustering extends application availability by supporting failure and recovery detection of cache instances. If a cache instance fails, other members of the cluster detect the failure and the cached content is automatically re-partitioned among the remaining cluster peers.
Two clustered Web caches share the load