[Zope-ZEO] Round-robin FastCGI

[Monty Taylor]

We're working on a solution here with UltraMonkey across two loadbalancers,
and then the ZEO cluster behind that. My sysadmin claims that UltraMonkey is
"the dog's bollocks" We're also using a heartbeat package (which I believe is
part of UltraMonkey) which does failover based on a serial port hearbeat.

Monty
Anthony Baxter wrote:

> >>> Paul Everitt wrote
> >
> > Yes, Michel is correct, rewrite rules are the way to do it.  Note that
> > this isn't specific to FastCGI -- there are tutorials about it for proxy
> > pass.
>
> Note that, unless things have changed since I tried it, this is only
> suitable for load balancing, not failover. Last time I tried it, if
> the selected backend was down the user got an error from apache.
>
> I think putting some sort of application level proxy in place would be
> a better bet - either a hardware one (choose your vendor) or a software
> one. There's a number of free packages out there for this sort of thing,
> e.g. balance, at http://balance.sourceforge.net/ (I haven't actually
> used this one yet, but I've grabbed it to have a play...)
>
> Anthony
>
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