Re: [Zope] load-balancing recommendations ? (configuration and hardware)

[Andrew Kenneth Milton]

+[ chas ]-
|
| 
| ps. In the past I've got around this by ensuring that if the
| very first request from a given browser is dealt with by, say, 
| server silo8.domain.com, then all subsequent requests from that
| browser are also dealt with by by that server. But that 
| (a) introduces head-aches with application logic and (b) is
| not good if silo8.domain.com suddenly goes down.

pps. If you use sessions that are not distributed (i.e. in memory), this
is the setup you need. It is a royal pain (thinking IIS + ASP here more than
anything)

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Re: [Zope] load-balancing recommendations ? (configuration and hardware)

[Anthony Baxter]

 chas wrote
 I've often heard about the infinite-scalability that will
 be created by something like ZEO and I've always wondered
 about one thing : how is the load-balancing being done ?

There's a number of approaches you can take here:

1. Buy something - a cisco localdirector, an arrowpoint (also now owned
by cisco), or similar. This is the approach we take - in a past life I've
seen an LD get the absolute crap kicked out of it and it just kept working
(it was in front of some _large_ proxy caches). 
www.cisco.com
www.arrowpoint.com

2. Software - there's linux virtual server, there's eddieware, there's
probably a bunch of commercial packages as well, although I don't know
why you'd bother...
www.linuxvirtualserver.org
www.eddieware.org

Which of these solutions you go for largely depends on your budget - the
first set of options are probably more robust and flexible, but the latter
is definately going to be cheaper :)

Anthony
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Anthony Baxter [EMAIL PROTECTED]   
It's never too late to have a happy childhood.

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