World of Tanks: Linux and Open Source Inside

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World of Tanks: Linux and Open Source Inside

  1. 1. World of Tanks Linux and Open Source Inside Maksim Melnikau
  2. 2. I’m developer in Wargaming (Belarus, Minsk) Order of War Order of War: Challenge World of Tanks Linux Mobile hobbyist Openmoko systemd telepathy Gentoo World of Tanks: Linux and Open Source Inside, Maksim Melnikau
  3. 3. World of Tanks mmorpg fps about tanks 15x15 pvp World of Tanks: Linux and Open Source Inside, Maksim Melnikau
  4. 4. World of Tanks Today 800k concurrent users in peak 8M messages per second 500 servers for game and web 60M game portal visits per month 5 PB (petabytes) for game installs and updates per month World of Tanks: Linux and Open Source Inside, Maksim Melnikau
  5. 5. Cheaters many players want to cheat cheaters make other players unhappy cheaters xenophobia World of Tanks: Linux and Open Source Inside, Maksim Melnikau
  6. 6. Scaleability better product — more users more users — more servers more servers — bigger synchronization problem World of Tanks: Linux and Open Source Inside, Maksim Melnikau
  7. 7. Single Datacenter Issues latency availability single point of failure World of Tanks: Linux and Open Source Inside, Maksim Melnikau
  8. 8. Big Data more users — more data more data — bigger disks suddenly, new storage solution required World of Tanks: Linux and Open Source Inside, Maksim Melnikau
  9. 9. Rapid Growth simple solution — faster time to market great success — simple solutions completely unusable rewriting everything on-the-fly business changes every day World of Tanks: Linux and Open Source Inside, Maksim Melnikau
  10. 10. Nobody Will Help You no time to educate people no time to wait 3rd party support no time to write good proper solutions World of Tanks: Linux and Open Source Inside, Maksim Melnikau
  11. 11. Full Control software data team hardware World of Tanks: Linux and Open Source Inside, Maksim Melnikau
  12. 12. Linux and Open Source Software ready to use components good documentation customize software when required hire people with required skills World of Tanks: Linux and Open Source Inside, Maksim Melnikau
  13. 13. World of Tanks Architecture game client — thin client, player server — world simulation cluster — thousands of process working as one server step-game world, with very small steps World of Tanks: Linux and Open Source Inside, Maksim Melnikau
  14. 14. Development regular Python GC disabled some parts rewritten on C++ message-based RPC UDP-based reliable internal protocol World of Tanks: Linux and Open Source Inside, Maksim Melnikau
  15. 15. Cluster World of Tanks: Linux and Open Source Inside, Maksim Melnikau
  16. 16. Multi Cluster scaleability geo distributed availability independence World of Tanks: Linux and Open Source Inside, Maksim Melnikau
  17. 17. Production 1. 500 servers 2. 8k cpu cores 3. 32 TB RAM 4. Linux World of Tanks: Linux and Open Source Inside, Maksim Melnikau
  18. 18. MySQL database size: 300 GB 384 GB RAM Percona 5.5 (buffer pool warming — 1GBps) 40k selects, 1k inserts, 1k updates per second 24 HDD ∗ 600 GB ∗ 0.5 = 6 TB World of Tanks: Linux and Open Source Inside, Maksim Melnikau
  19. 19. Client 1. regular Python 2. HUD - ActionScript, Scaleform 3. 3D graphics - C++ World of Tanks: Linux and Open Source Inside, Maksim Melnikau
  20. 20. Web Tasks registrations update distribution news account management docs account profile media statistics payment form ratings receiving payments ... World of Tanks: Linux and Open Source Inside, Maksim Melnikau
  21. 21. LNAMPMR World of Tanks: Linux and Open Source Inside, Maksim Melnikau
  22. 22. Other World of Tanks: Linux and Open Source Inside, Maksim Melnikau
  23. 23. Keys to Success Linux on server relaying on Open Source fast and easy development having full control on everything don’t afraid of different software stacks World of Tanks: Linux and Open Source Inside, Maksim Melnikau
  24. 24. Thank You. Questions Maksim Melnikau mailto:m_melnikau@wargaming.net https://plus.google.com/114669104565190507739/ https://twitter.com/max_posedon http://wargaming.com

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