On ons, 2008-10-22 at 14:35 -0700, BUI18 wrote: > Object is initially cached. Max age in squid.conf is set to 1 min. > Before 1 min passes, I request the object and Squid returns TCP_HIT. > After 1 min, I try to request for object again. Squid returns > TCP_REFRESH_HIT, which is what I expect. I leave the entire system > untouched. A day or a day and a half later, I ask for the object > again and Squid returns TCP_REFRESH_MISS/200. TCP_HIT is a local hit on the Squid cache. Origin server was not asked. TCP_REFRESH_HIT is a cache hit after the origin server was asked if the object is still fresh. TCP_REFREHS_MISS is when the origin server says the object is no longer fresh and returns a new copy on the conditional query sent by the cache. (same query as in TCP_REFRESH_HIT, different response from the web server). > What could possibly cause Squid to refetch the entire object again? A better question is why your server responds with the entire object on a "If-Modified-Since" type query if it hasn't been modified. It should have responded with a 304 response as it did in the TCP_REFRESH_HIT case. Regards Henrik
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