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Applied Redis
Applied Redis
Applied Redis
Applied Redis
Applied Redis
Applied Redis
Applied Redis
Applied Redis
Applied Redis
Applied Redis
Applied Redis
Applied Redis
Applied Redis
Applied Redis
Applied Redis
Applied Redis
Applied Redis
Applied Redis
Applied Redis
Applied Redis
Applied Redis
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Applied Redis

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  • 1. Applied Redis Barcamp Saigon 2012
  • 2. About me @hotrannamKMS Technology
  • 3. take away
  • 4. back to school
  • 5. data structures
  • 6. big O
  • 7. do it right( data model & query performance )
  • 8. redis???
  • 9. data structure server
  • 10. data types
  • 11. #1 strings#2 hashes#3 lists#4 sets#5 sorted sets
  • 12. data examplesKeys Valuespage:index.html <html><head>[…] stringlogin_count 7464users_logged_in_today {1, 2, 3, 4, 5} setlatest_post_ids [201, 204, 205] listuser:123:session time => 10927353 hash username => joeusers_and_scores joe ~ 1348 sorted set fred ~ 938 chris ~ 2832
  • 13. command examplesSET my_key “my value”GET my_keyINCR next_post_idEXPIRE my_key 1234TTL my_keyDEL my_key field valueEXISTS my_key HSET product:1 id 1 HSET product:1 name “iPad” HSET product:1 available 10
  • 14. commandshave its big O ( mostly )
  • 15. and beyond
  • 16. bring to life
  • 17. #1 cache data
  • 18. #2 who is online# add to friends setSADD users:nam:friends duySADD users:nam:friends khoi# add to online setSADD online namSADD online nghiaSADD online khoi# get online friends – {khoi}SINTER users:nam:friends online
  • 19. #3 leaderboard ( ranking )# add to leaderboard (sorted set)ZADD leaderboard <score> <player># get top 5ZREVRANGEBYSCORE leaderboard +inf –infWITHSCORES LIMIT 0 5# get rank of KhoiZREVRANK leaderboard Khoi# get 5 players around KhoiZREVRANGEBYSCORE leaderboard +inf –infWITHSCORES LIMIT 2 5
  • 20. #4 cross-app communication# web appSUBSCRIBE chatPUBLISH chat “Hello! I’m web app.”# mobile appSUBSCRIBE chatPUBLISH chat “Hi! I’m mobile app.”
  • 21. Thank you!

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