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## graceful_shutdown_tornado_web_server.py
#!/usr/bin/env python

"""
How to use it:
1. Just `kill -2 PROCESS_ID` or `kill -15 PROCESS_ID` , The Tornado Web Server Will shutdown after process all the request.
2. When you run it behind Nginx, it can graceful reboot your production server.

3. Nice Print in http://weibo.com/1682780325/zgkb7g8k7

"""
	#!/usr/bin/env python

	"""
	How to use it:
	1. Just `kill -2 PROCESS_ID` or `kill -15 PROCESS_ID` , The Tornado Web Server Will shutdown after process all the request.
	2. When you run it behind Nginx, it can graceful reboot your production server.

	3. Nice Print in http://weibo.com/1682780325/zgkb7g8k7

	"""