Georg Höllrigl wrote:
Hello,
I'm using several load-balanced squids as reverse proxy. I have extra
subdomains for delivering images. For example images1.example.com and
images2.example.com. Both subdomains deliver exactly the same content
and are requested evenly distributed. Now my thought was, to improve the
squid-cache hitrate with a redirector program, which redirects all the
requests for images2 to images1. According to webserver logfiles this
works. But when disabling the redirects, I don't see significant
differences in the hit rates.
Does anyone have a simmilar setup and can confirm this behavior?
Any hints about getting this "right" or hints to the right docs or even
search terms?
URL re-writing only alters the URL, not the other related HTTP headers.
This can cause problems and is avoidable in most situations.
Also, if you are having problems with HIT rate think of all the other
admins out there suffering under your site design. You can save yourself
a lot of bandwidth costs by using a cache friendly design.
Squid (and most of the load balancers I've heard of) work best for the
case where one sub-domain is used with balancing on multiple IP addresses.
Splitting the content between two sub-domains (ie catpics.example.com,
dogpics.example.com) is another cache friendly way to do it, but does
loose some of the balancing benefits.
Amos
--
Please be using
Current Stable Squid 2.7.STABLE9 or 3.1.1
