os: centos7.4
redis:4.0.9
ruby:2.3.4

ip 规划

redis1    192.168.56.101
redis2    192.168.56.102

用两台虚拟机模拟6个redis节点。
分别为
192.168.56.101 的 9001、9002、9003 端口，
192.168.56.102 的 9001、9002、9003 端口。

start redis cluster

# redis-server --help
Usage: ./redis-server [/path/to/redis.conf] [options]
       ./redis-server - (read config from stdin)
       ./redis-server -v or --version
       ./redis-server -h or --help
       ./redis-server --test-memory <megabytes>

Examples:
       ./redis-server (run the server with default conf)
       ./redis-server /etc/redis/6379.conf
       ./redis-server --port 7777
       ./redis-server --port 7777 --slaveof 127.0.0.1 8888
       ./redis-server /etc/myredis.conf --loglevel verbose

Sentinel mode:
       ./redis-server /etc/sentinel.conf --sentinel

# vi redis_start.sh
redis-server /usr/redis/redis-cluster-data/9001/redis.conf
redis-server /usr/redis/redis-cluster-data/9002/redis.conf
redis-server /usr/redis/redis-cluster-data/9003/redis.conf

stop redis cluster

# redis-cli -h 192.168.56.101 -p 9001 -c 
192.168.56.101:9001> SHUTDOWN 

或者 kill 进程
# ps -ef|grep -i redis
root      4059  1851  0 05:49 pts/0    00:00:00 grep --color=auto -i redis
root     11330     1  0 May18 ?        00:00:24 redis-server 192.168.56.101:9002 [cluster]
root     11340     1  0 May18 ?        00:00:24 redis-server 192.168.56.101:9003 [cluster]
root     11738     1  0 May18 ?        00:00:22 redis-server 192.168.56.101:9001 [cluster]
# kill 11330