Re: [squid-users] scalable transparent load balancing

There is many ways to go about this

* Fault tolerance, making the proxies cover for each other. See
clustering / fail-over. Note: even in a "fail-over" scenario both can
be active for different subsets of clients or destinations.

* Load balancing infront of the proxies by using a external load
balancer such as http://www.linuxvirtualserver/

* WCCP between the router and the proxies. Not sure if this can be
done with two routers however.

And most likely numerous other approaches.

Regards
Henrik

On Friday 29 November 2002 07.28, Dan DiNicolo wrote:
> Hi all. Hoping that someone out there may have a solid, practical
> solution for a transparent squid load balancing scenario. Right now
> I'm doing volunteer work with an ISP in Mongolia.
>
> We've got 2 squid servers up and running, configured as siblings
> and functioning as they should. My issue is how best to
> load-balance traffic to the two boxes. I've got two links, and the
> router is redirecting traffic from one link to the first squid box,
> and from the second link to the second squid box, ICP running
> correctly between the two. Although this works as it should, it
> doesn't give me any fault tolerance since I'm using policy routing
> to redirect traffic at the moment.
>
> I've tried using WCCP, and everything works as it should, but only
> if I connect the router directly to one squid server. When
> everything is connected to the switch, my router sees both squid
> boxes, but once I enable WCCP redirection, it isn't forwarding to
> the Internet, although my log files show traffic reaching the
> boxes. I know that WCCP is probably the best solution, so if anyone
> else has seen this problem, I'd be happy to know how you solved it.
>
> Mainly I want a solution that provides load-balancing, some degree
> of fault tolerance, and the scalability to add more servers as
> things here grow.
>
> Any thoughts or comments are sincerely appreciated.
>
> Dan
Received on Fri Nov 29 2002 - 02:15:06 MST