Atef Alqashqish wrote:
Hi,
I have two servers Windows 2003 with SQUID 2.7 stable 3, one of them act as origin for the two squid instances, hence one squid installation co-exist on the same box with IIS application and web site, the two squid works as expected as long as ICP and cache hierarchy is not used, only one cache_peer as parent and origin.
To enhance the site performance we decide to use ICP and make one server use the second server squid as its sibling with proxy-only option, we always get ICP_MISS in the cache log even though we are sure the URL is cached in the first SQUID cache!, the below are the configuration:
First off 'proxy-only' is probably not a good choice in these
circumstances. It prevents any sibling fetched objects being cached, yet
you are caching objects direct from the parent. You _want_ the fastest
possible response in an accelerator, which means caching.
Secondly you are not doing a clear accelerator. For your cofiguration
below to work, something funky has to be going one with either DNS or
URL re-writers which breaks any possibility of siblingship.
See below for a description of the problem.
See
http://wiki.squid-cache.org/SquidFaq/ReverseProxy#head-7fa129a6528d9a5c914f8dd5671668173e39e341
for a demo config of how accelerators should be configured.
Server1 (Origin with IIS site and SQUID cache), IP 10.10.0.191:
cache_peer 10.11.0.197 parent 80 0 no-query originserver
acl usasite dstdomain 10.10.0.191
You sure clients are really asking for "http://10.10.0.191/"; ??
cache_peer_access 10.11.0.197 allow usasite
cache_peer_access 10.11.0.197 deny all
http_access allow usasite
icp_port 3130
icp_access allow all
Server2(IP 10.10.10.16):
http_port 10.10.10.16:80 accel defaultsite=10.10.10.16
So your domain name is not "10.10.0.191" but "10.10.10.16" now?
cache_peer 10.10.0.191 sibling 80 3130 proxy-only
cache_peer 10.11.0.197 parent 80 0 no-query originserver
acl usasite dstdomain 10.10.10.16
Must be, but the sibling Server1 doesn't know or accept the domain name
when asked for "http://10.10.10.16/";
cache_peer_access 10.11.0.197 allow usasite
cache_peer_access 10.11.0.197 deny all
cache_peer_access 10.10.0.191 allow usasite
cache_peer_access 10.10.0.191 deny all
http_access allow usasite
icp_port 3130
icp_access allow all
Please help
Atef A. M. AlQashqish
Operation Manager / MCSE, MCT, ITIL Certified Service Manager
iHorizons
Tel : - +962 6 534 1640 ext 61
Mobile:- +962 777 530053
Fax:- +962 6 534 1927
P.O. BOX 1610 Jubaiha 11941 Amman - Jordan
http://www.iHorizons.com
Amos
--
Please be using
Current Stable Squid 2.7.STABLE5 or 3.0.STABLE11
Current Beta Squid 3.1.0.3
