[Twisted-Python] WSGI Production ready

Alex Clemesha clemesha at gmail.com
Wed Jan 20 15:26:37 EST 2010

On Wed, Jan 20, 2010 at 10:58 AM, Phil Christensen <phil at bubblehouse.org> wrote:
> On Jan 20, 2010, at 1:19 PM, adamjamesdrew same wrote:
>> Is twisted WSGI production ready as compared to apache and mod_wsgi
>> For a simple server with 4 cores would you simple start 4 instances and load balance between them?
>> How would you recommend a production deploy of twisted wsgi?
> Twisted's WSGI support is definitely production-ready; I'm currently using it in several production environments at work.
> However, performance can be limited by its use of Python threads, and the impact of the Global Interpreter Lock (which would be somewhat negated by your plan of running 4 instances in a load-balancing pool).
> If you need extremely high performance (and I mean really need -- Twisted WSGI is fast enough for many many scenarios), you will probably want to use another WSGI container.
Yes, twisted performs great for normal loads.  And, if you are so
lucky to suddenly have a massive amount of users and you need to scale
I'd suggest trying out the Nginx wsgi support, which I use in a couple
apps and works great.


> But of course, that's the benefit of coding to the WSGI spec. Personally, I use Twisted's WSGI for development, and for medium-load production deployments where I need a web server directly integrated with other Twisted code.
> For production, I've had great success with mod_wsgi on Apache 2.2, which I believe is the standard deployment environment for Django, as well.
> -phil
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Alex Clemesha

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