[squid-users] squid cache TCP_REFRESH_MODIFIED

From: parashuram <parashuram.l_at_accord-soft.com>
Date: Fri, 17 Feb 2012 16:56:04 +0530

Hi all,
I am using squid to cache dynamic responses from my particular server

everything working fine,
When I make first request access.log has
1329473470.110 0 192.168.0.40 TCP_MISS/200 856 GET
http://[ipv6address]:8080/.well-known/core - DIRECT/::1 text/html

Next request it logs following
1329473479.050 0 192.168.0.40 TCP_REFRESH_MODIFIED/200 856 GET
http://[ipv6address]:8080/.well-known/core - DIRECT/::1 text/html

request is in cache but due to resources being changed response is from
origin server( I've ignored must revalidated in refresh pattern). I
wanted request should be served from cache even if its modified and log
TCP_HIT or TCP_MEM_HIT in access.log.
any idea what might be going wrong??? suggestion how to tell squid not
send revalidiate signal to origin server to cross check for resource
modification???

server header response is as follows

(Status-Line) HTTP/1.0 200 OK
Date Fri, 17 Feb 2012 10:11:19 GMT
Content-Type text/html
Last-Modified Wed, 15 Feb 2012 07:48:34 GMT
Accept-Ranges bytes
Content-Lenght 8334
Cache-Control max-age=86400,public
Expires Sat, 18 Feb 2012 04:41:30 GMT
X-Cache MISS from colinux
Via 1.0 colinux (squid/3.1.18)
Connection close

my squid.conf refresh pattern rules are as follows
refresh_pattern ^http: 1440 30% 10080 ignore-must-revalidate
refresh_pattern ^ftp: 1440 20% 10080
refresh_pattern ^gopher: 1440 0% 1440
refresh_pattern -i (/cgi-bin/|\?) 0 0% 0
refresh_pattern . 0 20% 4320

-- 
Regards,
Parashuram
Systems Engineer
Accord Software&  systems Pvt Ltd
Division : GNSS&  Systems
www.accord-soft.com
Mobile   : +91-81471 93134
Extn     : 227
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Received on Fri Feb 17 2012 - 11:27:35 MST

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