Update the gunicorn worker class to synchronous

Signed-off-by: Roberto Rosario <roberto.rosario@mayan-edms.com>

HISTORY.rst

@@ -1,3 +1,8 @@
+3.3.4 (2019-12-XX)
+==================
+- Update the gunicorn worker class to synchronous.
+
+
 3.3.3 (2019-12-05)
 ==================
 - Fix transformation label display in transformation create view.

mayan/apps/platform/templates/platform/supervisord.tmpl

@@ -11,7 +11,7 @@ environment=
 [program:mayan-gunicorn]
 autorestart = true
 autostart = true
-command = {{ INSTALLATION_PATH }}/bin/gunicorn -w {{ GUNICORN_WORKERS }} mayan.wsgi --max-requests 500 --max-requests-jitter 50 --worker-class gevent --bind 0.0.0.0:8000 --timeout {{ GUNICORN_TIMEOUT }}
+command = {{ INSTALLATION_PATH }}/bin/gunicorn -w {{ GUNICORN_WORKERS }} mayan.wsgi --max-requests 500 --max-requests-jitter 50 --worker-class sync --bind 0.0.0.0:8000 --timeout {{ GUNICORN_TIMEOUT }}
 user = mayan
 
 {% for worker in workers %}