Re: [squid-users] Squid Accelerator Farms

You used the reload button... when you use the reload button most
browsers includes HTTP headers which instructs the cache that it MUST
verify the freshness with the origin server (Cache-Control:
max-age=0 as you are using Mozilla)..

Regards
Henrik

On Thursday 06 March 2003 20.40, Hugh Buchanan wrote:

> I can localize the problem by setting up just two servers.. one
> squid, one apache. I loaded a bunch of static HTML and PNG files
> onto the apache machine (no NFS involved), and setup the squid
> server to accelerate the apache server. Despite my simple
> configuration, the squid machine doesn't cache anything for me.
>
> As suggested by Henrik, I enabled mime header logging. I get this:
>
> 66.28.178.17 - - [06/Mar/2003:14:29:48 -0500] "GET
> http://gre.mydomain.com/images/admin/logo-vlinto.png HTTP/1.1" 304
> 216 TCP_REFRESH_HIT:DIRECT [Host: gre.mydomain.com\r\nUser-Agent:
> Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.3b)
> Gecko/20030211\r\nAccept:
> text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text
>/plain;q=0.8,video/x-mng,image/png,image/jpeg,image/gif;q=0.2,*/*;q=
>0.1\r\nAccept-Language: en-us,en;q=0.5\r\nAccept-Encoding:
> gzip,deflate,compress;q=0.9\r\nAccept-Charset:
> ISO-8859-1,utf-8;q=0.7,*;q=0.7\r\nKeep-Alive:
> 300\r\nConnection: keep-alive\r\nCookie:
> slp=bhdwskGnLiGVI1046565860; LOGIN=hugh\r\nIf-Modified-Since: Thu,
> 28 Jun 2001 00:08:05 GMT\r\nIf-None-Match:
> "32e6a3-4cc-3b3a7565"\r\nCache-Control: max-age=0\r\n] [HTTP/1.1
> 304 Not Modified\r\nDate: Thu, 06 Mar 2003 19:29:48 GMT\r\nServer:
> Apache/1.3.22 (Unix) PHP/4.0.6
> mod_perl/1.26\r\nConnection: Keep-Alive\r\nKeep-Alive: timeout=15,
> max=99\r\nETag: "32e6a3-4cc-3b3a7565"\r\n\r]
>
> So I have the entry, "Cache-Control: max-age=0". This is put in by
> the squid server to request a fresh copy of the file right?
>
> Is my problem caused by the fact that the file I am using to test
> is two years old? This file isn't going to get any younger... I
> don't believe I should have to go in and update all my files to be
> fresher.
>
> Anyone have any ideas?
>
> My config is below for reference. Thanks in advance,
>
> Hugh
>
> ------ BEGIN SQUID.CONF FILE -----
> cache_mem 384 MB
> cache_dir ufs /home/squid/cache 1024 16 256
>
> refresh_pattern . 0 20% 4320
>
> acl all src 0.0.0.0/0.0.0.0
> acl manager proto cache_object
> acl localhost src 127.0.0.1/255.255.255.255
> acl SSL_ports port 443 563
> acl Safe_ports port 80
> acl CONNECT method CONNECT
>
> http_access deny manager
> http_access deny !Safe_ports
> http_access deny CONNECT !SSL_ports
> http_access allow all
> http_access allow localhost
>
> visible_hostname www.mydomain.com
> unique_hostname squid.mydomain.com
>
> httpd_accel_host www-priv1.mydomain.com
> httpd_accel_port 80
> httpd_accel_with_proxy off
> httpd_accel_uses_host_header on
> log_mime_hdrs on
>
> forwarded_for on
>
> #cache_store_log /dev/null
> #cache_access_log /dev/null
> cache_store_log /var/log/squid/store.log
> cache_access_log /var/log/squid/access.log
> cache_log /var/log/squid/cache.log
>
> maximum_object_size 32768 KB
> maximum_object_size_in_memory 32 KB
>
> redirect_program /usr/etc/vlinto
> redirect_children 64
> redirector_bypass off
> ---- END FILE ----
Received on Thu Mar 06 2003 - 16:10:59 MST