[Flask] Flask Deployment on Tornado

[David Lord]

The Tornado section was removed from the docs in master. 
https://github.com/pallets/flask/pull/1187

On 04/12/2016 10:20 AM, errata at gmx.com wrote:
>
> The Flask docs include this snippet for deploying a Flask app on Tornado:
> http_server  =  HTTPServer(WSGIContainer(app))
> http_server.listen(5000)
> IOLoop.instance().start()
>
> But the Tornado docs have this to say about deploying WSGI apps using 
> WSGIContainer:
>
>
>> Warning
>>
>> WSGI is a/synchronous/interface, while Tornado’s concurrency model is 
>> based on single-threaded asynchronous execution. This means that 
>> running a WSGI app with Tornado’s|WSGIContainer| 
>> <http://www.tornadoweb.org/en/stable/wsgi.html#tornado.wsgi.WSGIContainer>is/less 
>> scalable/than running the same app in a multi-threaded WSGI server 
>> like|gunicorn|or|uwsgi|. Use|WSGIContainer| 
>> <http://www.tornadoweb.org/en/stable/wsgi.html#tornado.wsgi.WSGIContainer>only 
>> when there are benefits to combining Tornado and WSGI in the same 
>> process that outweigh the reduced scalability.
>>
>
> So, is the consensus opinion to stick with gunicorn or uwsgi for 
> deployment?
>
>
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