I thought that the fact redis was being used (or any distributed store)
wouldn't make this an issue, so basically redis is used to be able to scale
out the workers but the web sockets listener can't currently be scaled out.
The main reason of the question was about being able to deploy everything
together, a django application and also web sockets through the same AWS
Elastic Beanstlak deployment, which would scale automatically and spawn new
servers in the process, this would actually save some money compared to
what we currently use which is basically a separate elastic beanstalk
deployment with a nodejs + web sockets server as a single instance since it
has the exact same issue, but since node is quite fast (way faster than
python sadly) scaling is not really an issue.
Is there any place to look into the technical challenges and progress for
El domingo, 6 de agosto de 2017, 20:43:41 (UTC-3), Andrew Godwin escribió:
> Yes, this is a problem, and as it says it would only work for some site
> designs (where you're OK with sharding the live userbase). We're fixing
> this architectural issue in the next major Channels release, but it's going
> to take a little time.
> On Mon, Aug 7, 2017 at 4:21 AM, Cristiano Coelho <cristia...@gmail.com
>> About docs here: http://channels.readthedocs.io/en/stable/deploying.html
>> "The fundamental difference is that the group mechanic requires all
>> servers serving the same site to be able to see each other*; if you
>> separate the site up and run it in a few, large clusters, messages to
>> groups will only deliver to WebSockets connected to the same cluster.*
>> For some site designs this will be fine, and if you think you can live with
>> this and design around it (which means never designing anything around
>> global notifications or events), this may be a good way to go."
>> It's not clear to me, the exact meaning of this. Channels won't work
>> properly if there are multiple servers (load balanced) running the
>> ASGI/listener (interface server?) code? Does this mean a broadcast
>> happening at one node will only deliver to all the clients connected to
>> that node? Isn't the point of using redis to be able to broadcast to
>> everyone across every server?
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