/var/log/apache2$ error.log
Wed May 11 12:25:21.167531 2016] [core:notice] [pid 29978:tid 139737900963712] AH00094: Command line: '/usr/sbin/apache2'
[Wed May 11 12:31:12.280811 2016] [core:error] [pid 30367:tid 139737803634432] [client 192.168.198.213:46735] End of script output before headers: django.wsgi
[Wed May 11 12:33:34.476299 2016] [core:error] [pid 30368:tid 139737803634432] [client 192.168.198.213:46749] End of script output before headers: django.wsgi
[Thu May 12 09:50:40.003557 2016] [mpm_event:notice] [pid 29978:tid 139737900963712] AH00493: SIGUSR1 received. Doing graceful restart
[Thu May 12 09:50:43.013817 2016] [core:error] [pid 30367:tid 139737700497152] [client 192.168.198.213:47323] End of script output before headers: django.wsgi
[Thu May 12 09:50:43.024466 2016] [mpm_event:notice] [pid 29978:tid 139737900963712] AH00489: Apache/2.4.7 (Ubuntu) mod_wsgi/3.4 Python/2.7.6 configured -- resuming normal operations