Here is a scenario. We will assume a cache "hit."
Client asks for http://domain/uri.html?args
mod_http_cache generates a key: http-domain-uri.html-args-header
asks mod_cache for value with this key.
mod_cache fetches the value, looks at expire time, its good, and returns
the "blob"
mod_http_cache examines blob, it's vary information on Accept-Encoding.
mod_http_cache generates a new key: http-domain.html-args-header-gzip
(value from client)
asks mod_cache for value with this key.
mod_cache fetches the value, looks at expire time, its good, and returns
the "blob"
mod_http_cache examines blob, it's a normal header blob. does not "meet
conditions" need to get data.
mod_http_cache generates a new key: http-domain.html-args-data-gzip
(value from client)
asks mod_cache for value with this key.
mod_cache fetches the value, looks at expire time, its good, and returns
the "blob"
mod_http_cache returns headers and data to client.
Notice there is a pattern to this...
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Brian Akins
Lead Systems Engineer
CNN Internet Technologies
