Meetup (Ruby Monterrey) : NoSQL & Ruby (but mostly Redis)

Brief talk about the three main NOSQL databases in the environment with an insight into working with Redis

Transcript

1. Febrero 2015 NOSQL & Ruby ( But Mostly Redis ) Adrian Cuadros
2. The three darlings of NOSQL 2 Mongo Redis Cassandra • Documents • JSON • JS Queries • Performance > Features • Text Search • Key-Value • Super Fast • Data Structures FTW! • Scripts en LUA • Transaccional • Columns • Huge Datasets • CQL3 ~SQL (no joins,fn) • Map/Reduce -> Hadoop • Key/KeyRange Queries Similares casos de uso que RDBMS. + Sin columnas predefinidas Real time apps Memcache Replacement Analytics Logging
3. Mongo Redis Cassandra Hit me with tha gems Mongoid (https://github.com/mongoid/mongoid) Redis-RB (https://github.com/redis/redis-rb) ORM (AR Replacement) Basic Driver Cequel https://github.com/cequel/cequel) ORM (AR Replacement)
4. 1 REDIS Estructuras de datos require 'redis' redis = Redis.new ## Strings redis.set "city", "monterrey" # => "OK" redis.set "temp", 3 # => OK redis.incr "temp" # => 4 redis.decrby "temp", 10 # => -6 redis.get "city" # => monterrey redis.get "temp" # => -6
5. 1 REDIS Estructuras de datos ## Hashes redis.hset "person", "age", 29 # => true redis.hset "person", "name", "adrian" # => true redis.hset "person", "nationality", "bolivia" # => true redis.hget "person", "name" # => adrian redis.hgetall "person" # => {"age"=>"29", "name"=>"adrian", "nationality"=>"bolivia"} redis.hmget "person", "name", "age" # => ["adrian", "29"] redis.hlen "person" # => 3
6. 1 REDIS Estructuras de datos ## Lists redis.lpush "tasks", "cook" # => 1 redis.lpush "tasks", "homework" # => 2 redis.rpush "tasks", "procrastinate" redis.lpop "tasks" # => homework redis.llen "tasks" # => 2
7. 1 REDIS Estructuras de datos ## Sets (Sin miembros repetidos) redis.sadd "aventones", "alberto" # => true redis.sadd "aventones", "cristina" # => true redis.sadd "reserbus", "adrian" # => true redis.sadd "reserbus", "heaney" # => true redis.sadd "reserbus", "adrian" # => false redis.sunion "reserbus", "aventones" # => ["adrian", "alberto"...]
8. 1 REDIS Estructuras de datos ## Sorted Sets (Sets con scores) redis.zadd "clubes", 2, "Barcelona" redis.zadd "clubes", 3, "Chelsea" redis.zadd "clubes", 1, "Real Madrid" redis.zrange "clubes", 0, -1 # => [Real Madrid, Barcelona, Chelsea] redis.zscore "clubes", "Real Madrid" # => 1 redis.zrevrangebyscore "clubes", 3, 0 # => [Clelsea, Barcelona, Real Madrid]
9. 1 REDIS Ejemplo https://gist.github.com/adriancuadros/6cbec9589c556016aafd
10. Gracias adrian@reserbus.com adrian@innku.com