Small shell script to restart the uWSGI application when https://github.com/unbit/uwsgi/issues/1369 happens. Based on uWSGI server run by upstart

check_uwsgi.sh

#!/bin/bash
line=$(tail -1 /var/log/myapp/myapp.uwsgi.log)
substr='uWSGI listen queue of socket'

if test "${line#*$substr}" != "$line"
then
	#We're using upstart, could be easily adapted to fx systemd
	# Adding a log statement to keep track of when this happens. Remember to create the monitor dir
	/sbin/initctl restart myapp > /var/log/myapp/monitor/uwsgi-monitor.log 2>&1
	echo "$(date) restarted myapp due to listen queue error" >> /var/log/myapp/monitor/uwsgi-monitor.log
fi