The Architecture of StackOverflow - Developer Conference 2013

Slides of the "Architecture of StackOverflow" talk given at Developer Conference 2013

Transcript

1. The  Architecture  Of   Marco Cecconi @sklivvz sklivvz@stackoverflow.com
4. #54  network  for  traffic*   …and  #7  in  Germany,  thank  you!   *source: Quantcast, Alexa
5. 560,072,448  pageviews  in  the  last  30  days*       (~100%  growth  year  over  year)   *source: Quantcast
7. web servers load balancers redis search database http(s) http rest http protobuf sql sql protobuf tag engine
10. We  are  sOll  scaling  up…    
11. Few projects :-)
12. Few projects :-) Few lines of code :-)
13. Few projects :-) Few lines of code :-) Eeek! very few tests :-S
14. Few projects :-) Few lines of code :-) Awesome community to help :-D Eeek! very few tests :-S
15. YAGNI*   It  works.   * You Ain’t Gonna Need It!
16. BATCAVE
17. BATCAVE DEV.SO
18. BATCAVE META.SO DEV.SO
19. BATCAVE META.SO DEV.SO
20. BATCAVE META.SO NETWORK DEV.SO
21. Move  fast  and  break  things    
22. Move  fast  and  break  things*   * Not the home page or question page :-)
23. Move  fast  and  break  things*   * Not the home page or question page :-)
24. Network Level Caches (Browser, CDN, etc.) Server Level Cache (HttpRuntime.Cache) Site Level Cache (Redis) SQL Server Database Cache (384 gigs of RAM!) Solid State Disk
30. * Source http://bit.ly/1eSLr8Z
34. Reinvent  a  beWer  wheel!   Open  source  all  the  wheels!  
36. WE <3 GEEKS
37. DOWN TO THE METAL \m/
38. HIRE THE BEST TALENT FROM ANYWHERE
39. BAT CAVE
40. Ir=kag=omz=pqoapq=ftue,=ymknq=iq=omz=fmxw=vane1Zewxuhhl&efmowahqdrxai.oay $_='@mk=uf=radimdp1Z--&ewxuhhl';tr/=1m-za-l@&Z/ !a-zP@\n/&print; Marco Cecconi @sklivvz sklivvz@stackoverflow.com