Upgrade to Pro — share decks privately, control downloads, hide ads and more …

Redis - little helper for big applications (rus)

Redis - little helper for big applications (rus)

Slides from my talk on sixth devclub meetup

Andrey Savchenko

February 29, 2012

More Decks by Andrey Savchenko

Other Decks in Programming


  1. Клиенты ActionScript, C, C#, C++, Clojure, Common Lisp, Erlang, Go,

    Haskell, haXe, Io, Java, Lua, Node.js, Objective-C, Perl, PHP, Python, Ruby, Scala, Smalltalk, Tcl
  2. Cтроки SET testkey “Hello” GET testkey MSET key1 “Hello” key2

    “world” SET counter 1 INCR counter GET counter #=> “2”
  3. Xеши HSET test key1 “Hello” HSET test key2 “World” HGET

    test key2 #=> “World” HGETALL test #=> “key1” “Hello” “key2” “World”
  4. Множества SADD users “andrey” SADD users “dima” SCARD users #=>

    2 SISMEMBER users “andrey” #=> 1 SISMEMBER users “gleb” #=> 0
  5. Кеши, сессии Инвалидация по признаку SET a18b045 “cache content” SET

    d98f0c9 “cache content” SADD cond1 a18b045 SADD cond1 d98f0c9 SMEMBERS cond1 DEL {result of smembers}
  6. Хранение несвязанных (малосвязанных) данных {user_id = 1} HSET settings:1 receive_emails

    “1” HSET settings:1 records_per_page “20” HSET settings:1 preffered_syntax “markdown” HGETALL settings:1
  7. Сбор статистики {post_id=42} INCR posts:42 GET posts:42 # How many

    views/votes? ZINCRBY posts 1 42 ZSCORE posts 42 # How many views/votes? ZREVRANGE posts O 9 # TOP-10 posts ZREVRANGE posts O 9 WITHSCORES # TOP-10 with views/votes quantity
  8. Связь между демонами # Websocket server: SUBSCRIBE messages # Async

    jobs server: SUBSCRIBE jobs # Web-application: PUBLISH jobs “videos:12:mpeg:ogg” PUBLISH messages “Video encoding #12 started” # Async jobs server: PUBLISH messages “Video encoding #12 finished”
  9. Построение простых графов # User 1 adds user 5 to

    friends SADD users:1:friends 5 SADD users:5:friend_of 1 ... # Get user 5 friends SMEMBERS users:5:friends # Get user 5 mutual friends SCARD users:5:friends users:5:friend_of # Get common friens of user 5 and 7 SCARD users:5:friends users:7:friends # Are user 7 friend of user 5? SISMEMBER users:5:friends 7