How Does the Web Cache Work? back | 1 2 3 4 5 6 7 8 | next
The first time that Oracle9iAS Web Cache receives an HTTP(S) request, it forwards the request to an HTTP server for processing. The Web cache stores the response in memory so it can respond directly to future requests. Oracle9iAS Web Cache understands HTTP headers, including cookies, and makes caching decisions based on administrator or application-defined rules. To invalidate the cache, administrators can specify expiration policies or send an HTTP invalidation message to the Web cache host machine. Oracle9iAS Web Cache supports load balancing and failover for HTTP server farms, so that cache misses are directed to the most available, highest performing origin Web server.