Hi, I'm out of ideeas trying to debug cache misses that I cannot explain. As a last resort I'm sending this problem to the list with the hope that you could come up with some explanation and/or cure for this. the setup is: squid 2.7stable9 on RHEL 5, configured as accel, 12 parents 1 sibling (another squid). Apache in front zope as parents. For the root page I send requests from the same browser. The page is supposed to stay in cache for 1h. I've seen it behaving correctly one time (at squid startup) afterwards if i keep requesting the page a few times I will get a MISS long before the 3600s have passed. I have checked and there is no PURGE for this URL in the mean time. There are some for other URL's deeper in the structure. here's a request: Host www.somewebsite.com User-Agent Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.9) Gecko/20100330 Fedora/3.5.9-1.fc11 Firefox/3.5.9Accepttext/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language en-us,en;q=0.5 Accept-Encoding gzip,deflate Accept-Charset ISO-8859-1,utf-8;q=0.7,*;q=0.7 Keep-Alive 300 Connection keep-alive Referer http://www.somewebsite.com/ Cookie __utma=173508663.4134765344646281700.1250060356.1271487209.1289208944.50; __utmb=173508663.59.10.1289208944; __utmc=173508663; __utmz=173508663.1289208944.50.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none) here's a HIT reply: Date Mon, 08 Nov 2010 12:06:29 GMT Server Zope/(Zope 2.9.10-final, python 2.4.3, linux2) ZServer/1.1 Plone/2.5.5 Content-Length 10131 Content-Language en Content-Encoding gzip Expires Fri, 10 Nov 2000 12:05:48 GMT Vary Accept-Encoding,Accept,If-None-Match,X-Username X-Caching-Rule-Id plone-containers Cache-Control max-age=0, s-maxage=3600 Content-Type text/html;charset=utf-8 X-Header-Set-Id cache-in-proxy-1-hour Age 40 X-Cache HIT from squid1.somewebsite.com X-Cache-Lookup HIT from squid1.somewebsite.com:3128 Via 1.0 squid1.somewebsite.com:3128 (squid/2.7.STABLE9) Keep-Alive timeout=8, max=100 Connection Keep-Alive Long before the 3600s have passed ,from the same browser, I would get a MISS. The request headers are IDENTICAL and there is no PURGE. What else might invalidate the cached object? Thank you, Adrian
