Hi, I'm using: Squid Cache: Version 2.6.STABLE13 I'm caching in accelerator mode(or should I say - reverse proxy), for example pictures, with 6hours expiry time. After this time, I'd like cache to check newer versions. I use refresh_pattern: refresh_pattern -i \.gif$ 60 90% 720 override-expire override-lastmod ignore-reload I've been also trying without override-expire(and lastmod). The problem is, after 6 hours, cache do invalidate its content, but receives 304 Not Modified from server and doesn't change expires date: 1220889578.703 10 83.31.43.112 TCP_REFRESH_HIT/200 1538 GET http://mypage/mypicture.gif - FIRST_UP_PARENT/front2 image/gif Today, 2008-09-09, I have in headers: http://mypage/mypicture.gif GET /mypicture.gif HTTP/1.1 Host: mypage User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; pl; rv:1.8.1.16) Gecko/20080702 Firefox/2.0.0.16 Accept: text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5 Accept-Language: pl,en-us;q=0.7,en;q=0.3 Accept-Encoding: gzip,deflate Accept-Charset: ISO-8859-2,utf-8;q=0.7,*;q=0.7 Keep-Alive: 300 Connection: keep-alive If-Modified-Since: Fri, 05 Sep 2008 06:49:18 GMT If-None-Match: "613727-77eff780" HTTP/1.x 304 Not Modified Date: Fri, 05 Sep 2008 07:56:18 GMT Content-Type: image/gif Expires: Fri, 05 Sep 2008 13:56:18 GMT Last-Modified: Fri, 05 Sep 2008 06:49:18 GMT Etag: "613727-77eff780" Age: 15380 X-Cache: HIT from mypage X-Cache-Lookup: HIT from mypage:3128 Via: 1.0 mypage:3128 (squid/2.6.STABLE13) Connection: keep-alive ---------------------------------------------------------- Especially: Date: Fri, 05 Sep 2008 07:56:18 GMT Expires: Fri, 05 Sep 2008 13:56:18 GMT Expires is 6 hours after Date, as You can see, but, today we have 2008-09-09 :) When I turn off the squid, I also receive 304 Not Modified, but with valid expiry time: http://mypage/mypicture.gif GET /mypicture.gif HTTP/1.1 Host: mypage User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; pl; rv:1.8.1.16) Gecko/20080702 Firefox/2.0.0.16 Accept: text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5 Accept-Language: pl,en-us;q=0.7,en;q=0.3 Accept-Encoding: gzip,deflate Accept-Charset: ISO-8859-2,utf-8;q=0.7,*;q=0.7 Keep-Alive: 300 Connection: keep-alive If-Modified-Since: Fri, 05 Sep 2008 06:49:18 GMT If-None-Match: "613727-77eff780" HTTP/1.x 304 Not Modified Date: Tue, 09 Sep 2008 08:52:24 GMT Server: Apache Connection: Keep-Alive Keep-Alive: timeout=5, max=500 Etag: "613727-77eff780" Expires: Tue, 09 Sep 2008 14:52:24 GMT Cache-Control: max-age=21600, must-revalidate ---------------------------------------------------------- Do You have any idea why it behaves this way? I found something similar: http://www1.uk.squid-cache.org/mail-archive/squid-users/200602/0305.html but this topic has no clues. How can I force squid to change expiry time? Is there any other way, than disabling 304 in Apache? Best Regards, Peter
