RE: [squid-users] cache-peering using sibling relationship

> -----Original Message-----
> From: Zia-ul-Hassan Zia [mailto:zia@rmit.edu.au]
> Sent: Thursday, June 30, 2005 4:45 AM
> To: squid-users@squid-cache.org
> Subject: [squid-users] cache-peering using sibling relationship
>
>
> Hi Guys,
> I will really appreciate if someone can help in my situation.
>
> We have three Squid proxies and want to share the cache between them using
> cache_peer option.These three proxies are at the same level (we don't want to configure them as parent child relationship). My concerns are.
>
> 1:- Should I configure all proxies as subling peers
> cache_peer proxy1.example.com 8080 3130 proxy-only
> cache_peer proxy2.example.com 8080 3130 proxy-only
> cache_peer proxy3.example.com 8080 3130 proxy-only
>
> 2:- Should we need to define an access list(miss_acl) for neighbour peers
> in case of MISSES neighbours can fetch from Internet instead of getting the error message.Does that make sense?
>
> miss_access allow proxy1.example.com
> miss_access allow proxy2.example.com
> miss_access allow proxy2.example.com
> miss_access allow manager
> miss_access deny all
>
> Please guide me, if I am missing something
>
> Zia-ul-Hassan Zia
> RMIT Infrastructure Services
> UNIX Systems
> Tel: 992 51964

FWIW, you might want to beware that some servers don't really play well with a single HTTP "session" originating from multiple IPs. In other words look into some way of "sticking" your cache clients to one proxy server.

Setting up your cache-peer relationships as specified in (1) above should be sufficient. Misses will not cause an error message, and you will have a minimum of duplicated content between the peers. Just be sure to set up http_access rules such that the cache_peers are allowed to access each other's cache.

Chris
Received on Thu Jun 30 2005 - 12:39:24 MDT