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Redis for fun and profit

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August 25, 2012
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Redis for fun and profit

A simple overview of redis

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mattg

August 25, 2012
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Transcript

  1. Redis matt george 8/25/2012 Saturday, August 25, 12

  2. @binarydud http://github.com/binarydud/redis-fun Saturday, August 25, 12

  3. Redis is not ... Saturday, August 25, 12

  4. Redis is not ... a replacement for your database. or

    necessarily fault tolerant. Saturday, August 25, 12

  5. WTF Saturday, August 25, 12

  6. what is it? Saturday, August 25, 12

  7. Key-Value Store Saturday, August 25, 12

  8. Key-Value Store Data Structure Server Saturday, August 25, 12

  9. why? Saturday, August 25, 12

  10. if you... need key value store that’s very fast. have

    a dataset that can fit into ram. are ok if not everything survives. Redis is very interesting! Saturday, August 25, 12

  11. Data structure basics Saturday, August 25, 12

  12. Strings Saturday, August 25, 12

  13. String Basics SET key value GET key SETEX key seconds

    value APPEND key value Saturday, August 25, 12

  14. redis>get hello (nil) redis> set hello world OK redis>get hello

    “world” String Basics Saturday, August 25, 12

  15. String Basics INCR key DECR key INCRBY key value DECRBY

    key value Saturday, August 25, 12

  16. String Basics redis>incr stat1 1 redis> incrby stat1 2 3

    redis> decr stat1 2 redis> get stat1 2 Saturday, August 25, 12

  17. String Patterns session handling caching counter/stats Saturday, August 25, 12

  18. Lists Saturday, August 25, 12

  19. Lists LPUSH key value (B)LPOP key LRANGE key start stop

    LLEN key LSET key index value LINDEX key index Saturday, August 25, 12

  20. List Patterns stacks queues message passing Saturday, August 25, 12

  21. Sets Saturday, August 25, 12

  22. Sets SADD key member SREM key member SISMEMBER key member

    SMEMBERS key SCARD key Saturday, August 25, 12

  23. Hashes Saturday, August 25, 12

  24. Hashes HSET key field value HDEL key field HKEYS keys

    HLEN key HGETALL key Saturday, August 25, 12

  25. Other Interesting Commands KEYS pattern DEL key RENAME key newkey

    EXISTS key EXPIRE key PERSIST key Saturday, August 25, 12

  26. Pub/Sub Saturday, August 25, 12

  27. Pub/Sub SUBSCRIBE channel ... UNSUBSCRIBE channel ... PUBLISH channel message

    Saturday, August 25, 12

  28. Administration Saturday, August 25, 12

  29. Persistence AOF Snapshots Saturday, August 25, 12

  30. Replication master/slave slave chaining Saturday, August 25, 12

  31. Server Commands redis> BGREWRITEAOF redis> BGSAVE redis> DBSIZE redis> INFO

    redis> FLUSHALL redis> SLAVEOF host port Saturday, August 25, 12

  32. Benchmarks SET: 47709.93 requests per second GET: 49900.20 requests per

    second INCR: 47801.15 requests per second LPUSH: 49188.39 requests per second LPOP: 48355.90 requests per second SADD: 46970.41 requests per second SPOP: 50581.69 requests per second LPUSH: 47755.49 requests per second Saturday, August 25, 12

  33. Demo Time aka, watch Matt flail in the command line

    Saturday, August 25, 12

  34. Caveats Saturday, August 25, 12

  35. Questions? http://redis.io Saturday, August 25, 12