On Wed, Sep 24, 2008 at 05:29:52AM -0700, BUI18 wrote: > I went through your same thinking as you described below. > > I checked the Expires header from the server and we do not set > one. I checked via Fiddler web debug tool. I also verified with > the dev guys here regarding no Expires header. I have set the min > and max via refresh_pattern because of the absence of the Expires > header thinking that Squid would keep it FRESH. > > Notice the -1 for expiration header (I do not set one on the > object). My min age is 5 days so I'm not sure why the object > would be released from cache in less than 2 days. > > If the object was released from cache, when the user tried to > access file, Squid reports TCP_REFRESH_MISS, which to me means > that it was found in cache but when it sends a If-Modified-Since > request, it thinks that the file has been modified (which it was > not as seen by the lastmod date indicated in the store.log below. Interesting that it's caching the file for 2 days. What are the full headers returned with the object? Any other cache control headers? Is there any chance you have a conflicting refresh_pattern, so the freshness rules being applied aren't the ones you're expecting? May be worth doing some tests with very small max ages to confirm it's matching the right rule.
