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Similar to 파이썬 웹 서비스 구성과 이해 (20)
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파이썬 웹 서비스 구성과 이해
- 1. 파이썬 웹 배포 삽질!! 이제 그만 이새로찬 (rochan87@gmail.com) coffeeselo.com
- 2. 파이썬기반 웹서비스의 구성과 이해(삽집은 제가! 여러분은 꽃길을 걸으세요!!!)
- 3. 발표자 소개 - Software Engineer at Coinone (Present) - Backend Developer at MyMusicTaste - 한때 Python 엄청 좋아함 … - 개발을 취미로 하고 싶은 개발자 - Trader (present)
- 4. “두 도시의 거리를 계산 하는 웹 서비스” 를 만듭니다.
- 5. GET /distance?base=”seoul”&target=”tokyo” Response Google Map API or GeoDB Flask App calculation
- 6. GET /distance?base=”seoul”&target=”tokyo” Response Google Map API calculation Flask App IO Bound CPU Bound
- 7. GET /distance?base=”seoul”&target=”tokyo” Google Map API Flask App calculation CPU Bound IO Bound
- 8. GET /distance?base=”seoul”&target=”tokyo” Google Map API Flask App calculation CPU Bound IO Bound IO Blocking GIL Handle Multi-Requests
- 9. Flask and Django are Web Application Framework Authentication ORM Template Engine ETC
- 11. GET /distance?base=”seoul”&target=”tokyo” Google Map API Flask App calculation Something We need to make Web Service
- 12. GET /distance?base=”seoul”&target=”tokyo” Google Map API Flask App calculation Web Server
- 13. GET /distance?base=”seoul”&target=”tokyo” Google Map API Flask App calculation Web Server Application
- 14. GET /distance?base=”seoul”&target=”tokyo” Google Map API Flask App calculation Web Server Application
- 15. PEP 333 proposes a simple and universal interface between web servers and web applications or framework
- 16. WSGI is the Web Server Gateway Interface (feat. CGI)
- 17. Web Server Python Web Application (Flask, Django) WSGI Server
- 18. WSGI Server
- 19. uWSGI [공식] ● It is written C ● Directly supported for Nginx ● Lower memory footprint [개인] ● 사용하다보면, C 베이스 이기에 디버깅이 어렵다. C 에러를 로그로 보는순간 패닉… ● *.ini 파일 gunicorn [공식] ● It is written Python ● Various worker-types and easy ● Documentation [개인] ● 친절한 문서 ^^ ● 디버깅이 편하다. ● 뒤에서 몇 가지 더
- 21. Gunicorn
- 23. gunicorn $main_file:$flask_object -w $num_worker ● Recommend (2 * num_cores) + 1 for $num_worker
- 25. PID: 4777 Gunicorn (PID: 4774) PID: 4778 PID: 4779 PID: 4780
- 27. gunicorn $main_file:$flask_object -w $num_worker -c $worker_type
- 28. Sync Worker ● Handles a single request at a time for resource bound application ● Appropriate CPU-Bound tasks http://docs.gunicorn.org/en/stable/design.html#choosing-a-worker-type
- 29. Async Worker Some examples of behavior requiring asynchronous workers: ● long blocking calls ● Web sockets ● ... http://docs.gunicorn.org/en/stable/design.html#choosing-a-worker-type
- 30. AB Benchmark Sync Worker VS Async Worker(feat, gevent)
- 31. ● $ ab -c 16 -n 1000 127.0.0.1:8000/io/delay/1 ○ request.get(‘http://httpbin.org/delay/$count) ● $ ab -c 16 -n 1000 127.0.0.1:8000/compute/1 ○ for each in range($count * 10^7): sum += each ● $ ab -c 16 -n 1000 127.0.0.1:8000/compute_io/1 ○ compute + IO $ ab -c $concurrency_level -n $num_requests 127.0.0.1:8000/$end_point
- 32. Sync Worker
- 33. Async Worker
- 34. Sync Gevent(Async) io/delay/1 2.67 10.95 compute/1 4.15 3.75 compute_io/1 1.81 3.36 2.67 10.95 4.15 3.75 1.81 3.36
- 35. Web Server Python Web Application (Flask, Django) WSGI Server (Gunicorn) Nginx Application Application Application Application
- 36. Nginx ● Web Server ○ Proxy Server ■ Managing Connection ○ Reverse proxy ○ Serving staticfile ○ 그외 웹 서버로서의 일반적인 기능들을 수행
- 37. Although there are many HTTP proxies available, we strongly advise that you use Nginx. If you choose another proxy server you need to make sure that it buffers slow clients when you use default Gunicorn workers http://docs.gunicorn.org/en/stable/delpoy.html#nginx-configuration
- 38. If you want to be able to handle streaming request/responses or other fancy features like Long polling, or Web sockets, you need to turn off the proxy buffering. When you do this you must run with one of the async worker classes. http://docs.gunicorn.org/en/stable/delpoy.html#nginx-configuration
- 39. 마무(의)리
- 41. 감사합니다. DoHyeon Font by WooWaBros