[crazygringo]

Docs talk about Availability Zones, but there is zero mention of weighting -- either that it's done, or that it's not done. This is a very strange omission. Googling reveals that balancing is done by counting outstanding requests to each instance:

http://stackoverflow.com/questions/15789166/how-amazon-elb-w...

https://forums.aws.amazon.com/message.jspa?messageID=146233

[jeffbarr]

> But there is zero mention of weighting

It is called WRR (Weighted Round Robin). Here are some docs to get you started:

http://docs.aws.amazon.com/Route53/latest/DeveloperGuide/Wei...

[crazygringo]

That's for Route 53 (DNS). The subject here is ELB, a different AWS technology.

[jeffbarr]

Yes, indeed! My thinking was that you could use this Route 53 feature to route traffic across several ELBs to accomplish the desired effect.

[dhendo]

Yes, sounds like a good idea (if you have control of the DNS)