On 1/12/06, Wim.Van.Leuven@xxxxxx <Wim.Van.Leuven@xxxxxx> wrote: > When inspecting the debug logs and the http headers, all files get cached at > the proxy. However when I change the modification time of the files on the > source servers, the cache doesn't get updated. Thus still serving the old > version of the file. > > As a matter a fact, once a file is cached, the source server is never > accessed anymore to verify the correctness of the cache against the remote > instances. > > Does anybody have a clue about which sublety I'm missing here? The cache uses standard http caching rules, which require period checks for content updates based either on Cache-Control, Expires, or Last-Modified headers. If you want the cache to check for new content on every request, you need to make the back-end send "Cache-Control: must-revalidate" or something like that. Joshua.
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