[Mailman-Developers] REST API speed

[Eric Searcy]

On 7/10/15 11:16 AM, Barry Warsaw wrote:
> On Jul 10, 2015, at 10:43 AM, Barry Warsaw wrote:
> 
>> My thinking is that a gunicorn -or other external wsgi server- based REST
>> runner wouldn't do much more than run gunicorn with the proper commands in a
>> subprocess, and manage its PID so that the runner itself could response to
>> `mailman stop` and `restart` commands.
> 
> I took a slightly different approach.  Basically don't start gunicorn with
> `mailman start` but start it in a shell after the main system is up and
> running.  Here's a very experimental and almost completely untested branch
> that could get you started:
> 
> https://gitlab.com/warsaw/mailman/tree/gunicorn
> 
> Read the docstring in this commit for details.
> 
> https://gitlab.com/warsaw/mailman/commit/3fbfde8793c9c5bf12b0f250a58b3e3134f77ebb

This didn't work for me without modification, both because gunicorn was
trying to pass 2 arguments into make_application, and because the
initialization was trying to happen each request, which caused issues
(mailman crashing trying to add the same language twice).

Here's how I resolved it (API running under gunicorn 19.3.0 correctly
responds to requests; didn't test much beyond that):

https://gitlab.com/emsearcy/mailman/commit/33fa949cfa190d32e3fd68ed02e787cc050ffa36

It's curious to me that Mailman Bundler makes references to Gunicorn
support, but it seems there code would run into the same problems I did
(multiple initiations and argument count mismatch).  Is anybody using
this from Bundler currently and can help me figure out why the difference?

https://mailman-bundler.readthedocs.org/en/latest/
https://gitlab.com/mailman/mailman-bundler/blob/master/mailman_web/wsgi.py
https://gitlab.com/mailman/mailman-bundler/blob/master/templates/deployment/mailman-web-gunicorn.service.in

Best regards,

Eric

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