[Seaside] Load balancing

Boris Popov boris at deepcovelabs.com
Wed Jul 26 16:23:51 UTC 2006

Actually, we use VisualWorks and I was thinking of actually deploying
headless, but haven't given much thought to accessing it remotely. I'd hate
to start putting web exposed management tools in the image, so I'll probably
just have a headful version available when needed for debugging. Accessing
individual images when there's dozens of them may not even make sense at
that point. The "manager" image that manages the multitude of these headless
services would probably run headful together with our main processing
server, and that may be accessible through a heavily guarded RDP session.

But like I said, all this may change once I actually get to it, and it'll
probably be closer towards the end of the year. Limited beta is handled
quite nicely by a single headful image so far ;)



DeepCove Labs Ltd.
4th floor 595 Howe Street
Vancouver, Canada V6C 2T5

boris at deepcovelabs.com


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-----Original Message-----
From: seaside-bounces at lists.squeakfoundation.org
[mailto:seaside-bounces at lists.squeakfoundation.org] On Behalf Of Ramon Leon
Sent: Tuesday, July 25, 2006 4:44 PM
To: 'The Squeak Enterprise Aubergines Server - general discussion.'
Subject: RE: [Seaside] Load balancing

> -----Original Message-----
> From: seaside-bounces at lists.squeakfoundation.org 
> [mailto:seaside-bounces at lists.squeakfoundation.org] On Behalf 
> Of Boris Popov
> Sent: Tuesday, July 25, 2006 4:21 PM
> To: The Squeak Enterprise Aubergines Server - general discussion.
> Subject: RE: [Seaside] Load balancing
> We're pretty much of the same school of thought on this one. 
> We are planning to run multiple headless images on multiple 
> VMs on multiple ESX servers and use Microsoft's Network Load 
> Balancer in the Class-C network affinity mode to distribute 
> the incoming requests across the pool. But that's because 
> we're a Windows shop :) You could probably buy an appliance 
> that does just that and not have to worry about it at all, 
> other than maintaining your cluster of servers that actually 
> serve the distributed stream of requests.
> Really, this isn't anything specific to Seaside, you just 
> want to keep the statefulness of the server in mind when 
> picking your affinity mode.
> Cheers!
> -Boris

Totally agree, we're a windows shop as well, though we use a BigIP load
balancer rather than Microsoft NLB.  Boris, have you figured out how you
plan on deploying Squeak on your NT boxes yet?  Are you going to just run
headless, with image minimized so you still have access to it, or install
the image as a service and lose access to the live image from the desktop?
What are you using for the backend, OODB, RDB? 

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