openapi yaml reloads slow performance

[martha alvarez]

I am a newbie at using mod_wsgi. I was able to get it working using my swagger py module (to replace the dev flask server) , but every time the .wsgi file runs it causes the add.api yaml files to reload which take 3 secs since it re-launches my py file for each api call.  This seems like a lot of overhead per call. How can I preload these yaml files to avoid this overheard?  I cannot seem to find an example of what I am trying to do.  Everything is working except this overhead will affect performance when processing many rest api requests.  When I used to just run it as w/the dev FLASK server via app.run, I ran it as a daemon process in the background and it only loaded the yaml files on start up and I proxied calls to the specified port so I didn't see this repetitive overhead.

    

WSGIDaemonProcess mytest user=apache group=apache display-name=me-mytest processes=5

    WSGIScriptAlias /mytest /xxx/bin/mytest.wsgi process-group=mytest

    <Directory "/xxx/bin">

        WSGIProcessGroup mytest

        WSGIApplicationGroup %{GLOBAL}

        Require all granted

    </Directory>

mytest.wsgi

#!/usr/bin/env python3

from mytest import app as application

mytest.py

 def app(environ, start_response):

    ...

   app = connexion.App(__name__, specification_dir='./')

   app.add_api(...)

   app.add_api(...). ----> TAKING 3 seconds overall for each request being processed

    if __name__ == '__main__':

       app.run(host=xyz, port = 123) -> Runs dev FLASK server - generally run in background as daemon process

    else:

      return app(environ, start_response) -> Runs via mod_wsgi