Apache Traffic Server presentation at Oscon 2010.

2. http://www.flickr.com/photos/zackbrescia/3292033740/

4. Origins of the software

6. Forward Proxy

7. Reverse Proxy

8. Intercepting Proxy

9. Plenty of FOSS Proxy Servers

10. Choosing an intermediary

11. SMP Scalability and performance

12. Traffic Server threads model

14. HTTP/1.1 Features

15. ATS HAproxy nginx Squid Varnish mod_proxy Worker Threads Y N N N Y Y Multi-Process N Y Y N Y Y Event-driven Y Y Y Y N N? Plugin APIs Y N Y part Y Y Forward Proxy Y N N Y N Y Reverse Proxy Y Y Y Y Y Y Transp. Proxy Y Y N Y N N Load Balancer part Y Y Y Y Y Cache Y N Y Y Y Y ESI soon N N Y Y N ICP Y N N Y N N Keep-Alive Y N Y Y Y Y SSL Y N Y Y N Y Pipeline Y N Y Y N Y

16. Ease of use, extensible

17. http://www.flickr.com/photos/stuartpilbrow/3345896050/

20. Configurations

26. QUICK DEMO

27. Use Case : Content Delivery Network

28. CDN on the Edge

29. Traffic Server CDN configuration CONFIG proxy.config.http.server_port INT 80 CONFIG proxy.config.cache.ram_cache.size INT 4096M CONFIG proxy.config.url_remap.remap_required INT 1 map http://cdn.example.com/js http://js.example.com reverse_map http://js.example.com http://cdn.example.com/js map http://cdn.example.com/css http://css.example.com reverse_map http://css.example.com http://cdn.exampe.com/css map http://cdn.example.com/img http://img.example.com reverse_map http://img.example.com http://cdn.example.com/img /dev/sd2

30. Common enemies of performance

31. TCP 3-way Handshake

32. Congestion avoidance

33. Use case : TCP Connection Management

34. ATS Connection mgmt configuration CONFIG proxy.config.http.server_port INT 80 CONFIG proxy.config.cache.ram_cache.size INT 0 CONFIG proxy.config.url_remap.remap_required INT 1 CONFIG proxy.config.http.send_http11_requests INT 1 CONFIG proxy.config.http.share_server_sessions INT 1 CONFIG proxy.config.http.server_max_connections INT 2000 CONFIG proxy.config.http.keep_alive_no_activity_timeout_out INT 60 CONFIG proxy.config.http.transaction_no_activity_timeout_out INT 60 map http://www.example.com/ http://real-www.example.com

36. trafficserver.apache.org

37. The concurrency problem

38. Solution 1: Multithreading

39. Problems with multi-threading

40. Solution 2: Event Processing

41. Problems with event processors