On Sat, Oct 11, 2003 at 08:28:16PM +0530, Ripunjay Bararia wrote: > I need to install about 20 Proxies in the next one month and all of them > will be on a fiber backbone. > Typical concurrent user per proxy will be about 600-800 users at a time. > I'm a noob on this please help me out here with the questions below... > > 1. do all the POP-Proxy servers have a single Large Parent-Proxy or Multiple > Large Parent-Proxy's or every one is the others child
>From what I have seen they use at least two parent proxys (for availability reasons) that get the requests distributed by a hardware load balancer. If you are going to do that setup remember to set the load balancers to sticky mode. Multiple HTTP requests should not be sent round-robin as certain webservers and web applications expect to see multiple HTTP sessions of a user from the same IP. However with squid you could as well name both parent proxy servers in the "cache_peer" configuration and your child proxys should do well. > 2. Does using cache digest improve the transfer of cached objects between > the proxy servers That's what they are for. The proxys exchange hash tables of what objects they have available. However using ICP puts additional load on your proxys and slows them down. If you expect a good cache-hit-ratio then it may be wise. > 3. does putting SCSI disks have any real benefit if compared to today's fast > IDE drives Not really (any more). > 4. best way to save bandwidth would be to .... after installing squid with > ReiserFS ? please Use ICP (sibling relations) if bandwidth saving is more important than a lightning fast connection. (But what does that have to do with the file system?) And perhaps use a content filter to block of unwanted requests when in a corporate environment. From my experience 90% of the requests of employees are not really work related. Christoph -- ~ ~ ".signature" [Modified] 3 lines --100%-- 3,41 All
