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SAP NetWeaver Newbie

Enabling Web Cache in SAP Web Dispatcher

When an http call is made, it is passed to the application server via the web dispatcher. If the same call is made repeatedly, the WD has to keep sending the same request to the application. There is some level of saving that can be made in the network bandwidth and usage of backend system by saving the fetched pages locally and serving the saved copies from the web dispatcher.

Web caching is inactive by default. To activate the cache on a particular uri, add "icm/HTTP/server_cache_0 = PREFIX=<uri-prefix>, CACHEDIR=<dir>" in the web dispatcher profile.

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