add gunicorn config from vhr_image_2018

core/run-httpd.sh

@@ -2,4 +2,4 @@
 
 
 echo "Running gunicorn"
-exec gunicorn --chdir ${INSTALL_DIR}/pvs_instance/ --bind :80 pvs_instance.wsgi:application --workers 8 --worker-class sync --timeout 600 --access-logfile - --error-logfile - --log-level warning --disable-redirect-access-to-syslog
+exec gunicorn --chdir ${INSTALL_DIR}/pvs_instance/ --bind :80 pvs_instance.wsgi:application --workers 8 --max-requests 10 --max-requests-jitter 3 --worker-class sync --timeout 600 --access-logfile - --error-logfile - --log-level warning --disable-redirect-access-to-syslog