uwsgi_log:

Thu Aug  6 18:17:46 2015 - *** Starting uWSGI 1.9.17.1-debian (64bit) on [Thu Aug  6 18:17:46 2015] ***
Thu Aug  6 18:17:46 2015 - compiled with version: 4.8.2 on 23 March 2014 17:15:32
Thu Aug  6 18:17:46 2015 - os: Linux-3.13.0-48-generic #80-Ubuntu SMP Thu Mar 12 11:16:15 UTC 2015
Thu Aug  6 18:17:46 2015 - nodename: ip-172-31-46-217
Thu Aug  6 18:17:46 2015 - machine: x86_64
Thu Aug  6 18:17:46 2015 - clock source: unix
Thu Aug  6 18:17:46 2015 - pcre jit disabled
Thu Aug  6 18:17:46 2015 - detected number of CPU cores: 1
Thu Aug  6 18:17:46 2015 - current working directory: /
Thu Aug  6 18:17:46 2015 - writing pidfile to /run/uwsgi/app/contacts/pid
Thu Aug  6 18:17:46 2015 - detected binary path: /usr/bin/uwsgi-core
Thu Aug  6 18:17:46 2015 - your processes number limit is 7862
Thu Aug  6 18:17:46 2015 - your memory page size is 4096 bytes
Thu Aug  6 18:17:46 2015 - detected max file descriptor number: 1024
Thu Aug  6 18:17:46 2015 - lock engine: pthread robust mutexes
Thu Aug  6 18:17:46 2015 - thunder lock: disabled (you can enable it with --thunder-lock)
Thu Aug  6 18:17:46 2015 - uwsgi socket 0 bound to UNIX address /run/uwsgi/app/contacts/socket fd 3
Thu Aug  6 18:17:46 2015 - uwsgi socket 1 bound to UNIX address /home/ubuntu/contacts/project/contacts.sock fd 5
Thu Aug  6 18:17:46 2015 - setgid() to 33
Thu Aug  6 18:17:46 2015 - setuid() to 33
Thu Aug  6 18:17:46 2015 - your server socket listen backlog is limited to 100 connections
Thu Aug  6 18:17:46 2015 - your mercy for graceful operations on workers is 60 seconds

Thu Aug  6 18:17:46 2015 - mapped 800712 bytes (781 KB) for 10 cores
Thu Aug  6 18:17:46 2015 - *** Operational MODE: preforking ***
Thu Aug  6 18:17:46 2015 - *** no app loaded. going in full dynamic mode ***
Thu Aug  6 18:17:46 2015 - *** uWSGI is running in multiple interpreter mode ***
Thu Aug  6 18:17:46 2015 - !!!!!!!!!!!!!! WARNING !!!!!!!!!!!!!!
Thu Aug  6 18:17:46 2015 - no request plugin is loaded, you will not be able to manage requests.
Thu Aug  6 18:17:46 2015 - you may need to install the package for your language of choice, or simply load it with --plugin.
Thu Aug  6 18:17:46 2015 - !!!!!!!!!!! END OF WARNING !!!!!!!!!!
Thu Aug  6 18:17:46 2015 - spawned uWSGI master process (pid: 22125)
Thu Aug  6 18:17:46 2015 - spawned uWSGI worker 1 (pid: 22126, cores: 1)
Thu Aug  6 18:17:46 2015 - spawned uWSGI worker 2 (pid: 22127, cores: 1)
Thu Aug  6 18:17:46 2015 - spawned uWSGI worker 3 (pid: 22128, cores: 1)
Thu Aug  6 18:17:46 2015 - spawned uWSGI worker 4 (pid: 22129, cores: 1)
Thu Aug  6 18:17:46 2015 - spawned uWSGI worker 5 (pid: 22130, cores: 1)
Thu Aug  6 18:17:46 2015 - spawned uWSGI worker 6 (pid: 22131, cores: 1)
Thu Aug  6 18:17:46 2015 - spawned uWSGI worker 7 (pid: 22132, cores: 1)
Thu Aug  6 18:17:46 2015 - spawned uWSGI worker 8 (pid: 22133, cores: 1)
Thu Aug  6 18:17:46 2015 - spawned uWSGI worker 9 (pid: 22134, cores: 1)
Thu Aug  6 18:17:46 2015 - spawned uWSGI worker 10 (pid: 22135, cores: 1)
Thu Aug  6 18:17:49 2015 - -- unavailable modifier requested: 0 --
Thu Aug  6 18:17:49 2015 - -- unavailable modifier requested: 0 --