[lug] Load Balancing Question

[Ben Luey]

I haven't done any load-balancing, so I might be completely off my
rocker... But could you do load-balancing internally via ip address?

I'm not quite clear on your configuration. If you have squid running on
two servers, then just have half the machines use one and half use the
other (set via dhcp, say)

If you have one squid machine that routes the requests to either of the
two machines, can you configure a rule in squid that picks which machine
to forward to based on the incoming ip address?

Good Luck,

Ben



On Fri, 2005-12-23 at 13:56 -0700, Dan Ferris wrote:
> So,
> 
> I have been helping a friend with 2 new mail/web servers.  The 2 servers
> are DNS round robin load balanced because that was the fastest, easiest,
> and cheapest way to get the load balancing that we want.
> 
> So my question is this...
> 
> The site has a proxy server running Squid.  It's not running in
> transparent mode, so all the workstations need to have the proxy server
> set up manually (it sucks, but I didn't do it and it can't be undone
> without MAJOR hassel) or web browsing won't work. 
> 
> Now, the load balancing works fine from the outside world.  It's
> completely transparent to any outside user. 
> 
> However...
> 
> If we log into Squirrelmail on a machine that uses the Squid proxy
> server, it will come up with the folder list just fine, but the inbox
> message view will say something like invalid login.  This problem is
> because the proxy requests part of the web page from one server and part
> of the web page from the other server.
> 
> I don't have enough time to research this since I have to actually
> finish Christmas shopping, so I'm enlisting the help of fellow geeks
> that may have delt with these issues before.  Right now the fix is a
> bandaid in that the DNS load balancing has been turned off for computers
> inside the network.
> 
> I would appreciate any suggestions.  We can't spend any money to get a
> real load balancer and I'm not highly keep on dealing with LVS (at least
> not right now).
> 
> Dan Ferris
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