I have a django app running on Apache2 and WSGI. I use PyCharm as my IDE for development.
I have the wsgi python module below, and added a print statement after application = get_wsgi_application(). When watching the logs this process takes about 1 second. What is confusing, is when this gets triggered. I have a page that sends a simple text output. I hit refresh a bunch of times, and this print gets written to the log once. If I wait a few seconds, it gets written on the next page request. If I refresh successively, it does not until I wait for a period again.
My call and response is about 10 milliseconds, but when this is executed (as verified by the print in the log) it takes about a second. This is adding a tremendous amount of unnecessary load to my server and slowing things down. I have it narrowed down to the apps.populate(settings.INSTALLED_APPS) that is called in the django.setup() method. Is there a way I can prevent this from running so often or make it run faster?
Thanks for any guidance, or advice you can offer to figure this out or prevent it.
wsgi.py:
import datetime
import os
import sys
from django.core.wsgi import get_wsgi_application
root_path = os.path.abspath(os.path.split(__file__)[0])
sys.path.insert(0, os.path.join(root_path, 'project_name'))
sys.path.insert(0, root_path)
path = '/var/www/project'
if path not in sys.path:
sys.path.append(path)
os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'settings')
start = datetime.datetime.now()
application = get_wsgi_application()
print('Time to Populate: ' + str(datetime.datetime.now() - start))
settings.INSTALLED_APPS:
INSTALLED_APPS = (
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.admin',
'report_builder', # Third-party tool
'business', # Internal app
'slab', # Internal app
'file', # Internal app
'training_topic', # Internal app
'item', # Internal app
'person', # Internal app
'employee', # Internal app
'school', # Internal app
'training', # Internal app
'services', # Internal app
'incident', # Internal app
'report', # Internal app
'notice', # Internal app
'county_notification', # Internal app
'utilities.fax', # Internal app
'log', # Internal app
'helptext', # Internal app
'search', # Internal app
'compensation', # Internal app
'data_export', # Internal app
'record_review', # Internal app
)
/var/log/apache2/error.log:
[Tue Apr 25 14:07:22.917665 2017] [wsgi:error] [pid 21810] Time to Populate: 0:00:00.826958
[Tue Apr 25 14:07:34.715745 2017] [wsgi:error] [pid 21817] Time to Populate: 0:00:00.822580
I was using PyCharm IDE and it was saving the files in real time, each save would prompt a recompile and this log would show up. I closed it and reran the tests and everything is fine. It only logs this function when I reload Apache2.