Redis 简单搭建

    ========   redis   ========

1. redis setup and test : 

    1. download the package from https://redis.io/download

    2. compile source code:
        tar xzf redis-3.2.5.tar.gz
        cd redis-3.2.5
        make

    3. start redis server :
        [dy83694@retailvm1d redis-3.2.5]$ src/redis-server
        28855:C 05 Dec 00:53:54.476 # Warning: no config file specified, using the default config. In order to specify a config file use src/redis-server /path/to/redis.conf
        ..
        28855:M 05 Dec 00:53:54.485 * The server is now ready to accept connections on port 6379

    4. test redis :
        [dy83694@retailvm1d redis-3.2.5]$ src/redis-cli
        127.0.0.1:6379> set foo bar
        OK
        127.0.0.1:6379> get foo
        "bar"
        127.0.0.1:6379> 

    5. Data type in redis :
        1) String :
            redis 127.0.0.1:6379> SET name "yiibai"
            OK
            redis 127.0.0.1:6379> GET name
            "yiibai"
        2) HashMap :
            redis 127.0.0.1:6379> HMSET user:1 username yiibai password yiibai points 200
            OK
            redis 127.0.0.1:6379> HGETALL user:1
            1) "username"
            2) "yiibai"
            3) "password"
            4) "yiibai"
            5) "points"
            6) "200"
        3) List (1. The max size = 2^32 -1 = 4294967295 ; 2. sort by insert sequence)
            redis 127.0.0.1:6379> lpush tutoriallist redis
            (integer) 1
            redis 127.0.0.1:6379> lpush tutoriallist mongodb
            (integer) 2
            redis 127.0.0.1:6379> lpush tutoriallist rabitmq
            (integer) 3
            redis 127.0.0.1:6379> lrange tutoriallist 0 10
            1) "rabitmq"
            2) "mongodb"
            3) "redis"
        4) Set (delete and test : o(1))
            redis 127.0.0.1:6379> sadd tutoriallist redis
            (integer) 1
            redis 127.0.0.1:6379> sadd tutoriallist mongodb
            (integer) 1
            redis 127.0.0.1:6379> sadd tutoriallist rabitmq
            (integer) 1
            redis 127.0.0.1:6379> sadd tutoriallist rabitmq
            (integer) 0
            redis 127.0.0.1:6379> smembers tutoriallist
            1) "rabitmq"
            2) "mongodb"
            3) "redis"

    6. Redis HyperLogLog : calculate the count of element
        redis 127.0.0.1:6379> PFADD tutorials "redis"
        redis 127.0.0.1:6379> PFCOUNT tutorials
        (integer) 3

    7. subscribe and publish message
        client 1 : redis 127.0.0.1:6379> SUBSCRIBE redisChat
        client 2 : redis 127.0.0.1:6379> PUBLISH redisChat "Redis is a great caching technique"

    8. transaction
        redis 127.0.0.1:6379> MULTI
        OK
        List of commands here
        redis 127.0.0.1:6379> EXECs

    9. Redis script
        redis 127.0.0.1:6379> EVAL script numkeys key [key ...] arg [arg ...]

    10. Redis Connect between server and client
        redis 127.0.0.1:6379> AUTH "password"
        OK
        redis 127.0.0.1:6379> PING
        PONG

    11. Redis backup ( dump.rdb in the redis directory  )
        1) backup
            127.0.0.1:6379> CONFIG get dir
            1) "dir"
            2) "/user/yiibai/redis-2.8.13/src"
            127.0.0.1:6379> SAVE
            or
            127.0.0.1:6379> BGSAVE
            Background saving started
        2) recovery
            copy the dump.rdb into redis directory and restart the redis server

    12. redis security
        1) client 1 :
            127.0.0.1:6379> CONFIG set requirepass "redis"
            OK
        2) client 2 :
            127.0.0.1:6379>  CONFIG get requirepass
            (error) NOAUTH Authentication required.
            127.0.0.1:6379> auth redis
            OK
            127.0.0.1:6379>  CONFIG get requirepass
            1) "requirepass"
            2) "redis"

    13. redis performance test
        src/redis-benchmark [option] [option value]
        src/redis-benchmark -n 100000

    14. Redis connect client
        1. maxclients in redis.conf :
            127.0.0.1:6379> config get maxclients
        2. set maxclients = 100000 once server start
            src/redis-server --maxclients 100000

    15. Redis pipe

    16. Redis Partition

2. Redis jedis test

    1. java connection : JedisPool and Jedis
    2. create redis slave :
        src/redis-server --port 6380 --slaveof 127.0.0.1 6379 --masterauth  "redis"