linux CentOS7 下 Redis集群 | 关闭 和 启动 集群

安装教程参考我的上一篇文章，http://blog.csdn.net/tangyaliang11/article/details/78901615

windows 安装参考 http://blog.csdn.net/tangyaliang11/article/details/78659473

这篇文章是接上一章环境下的继续。

#首先进入redis目录

$ cd /usr/local/redis-4.0.6

#创建6个文件夹分别是 7001 7002 7003 7004 7005 7006 代表6个redis服务

$ mkdir 7001 7002 7003 7004 7005 7006

#复制 redis.conf文件到这6个文件夹中

$ cp redis.conf 7001

$ cp redis.conf 7002

$ cp redis.conf 7003

$ cp redis.conf 7004

$ cp redis.conf 7005

$ cp redis.conf 7006

#分别修改以上6个文件夹中的redis.conf，修改最少项目如下

port 7001                                      # 端口号修改对应文件夹名称
dir ./7001/                                     # 目录修改对应文件夹名称
cluster-enabled yes                   # 启用集群
appendonly yes                          # 启用aof数据文件
daemonize yes                           #设置为 redis后台运行（守护进程）

#修改后分别启动7001-7006

$ src/redis-server ./7001/redis.conf
$ src/redis-server ./7002/redis.conf
$ src/redis-server ./7003/redis.conf
$ src/redis-server ./7004/redis.conf
$ src/redis-server ./7005/redis.conf
$ src/redis-server ./7006/redis.conf

#如果启动成功接下来我们需要安装ruby。在centos7中默认ruby是2.0.0版本，低于redis4.0.6的最低要求的2.2版本，所以需要进行升级。

先安装rubygems，在安装rvm 更新ruby

ruby 卸载与安装参考我这篇文章，重新安装ruby http://blog.csdn.net/tangyaliang11/article/details/78906782 

linux小白用户推荐我的这篇文章，升级ruby https://blog.csdn.net/tangyaliang11/article/details/80838489

$ yum install rubygems

#redis与ruby的接口

$ gem install redis

#这个时候我们可以创建集群了

$  src/redis-trib.rb create --replicas 1 192.168.1.7:7001 192.168.1.7:7002 192.168.1.7:7003 192.168.1.7:7004 192.168.1.7:7005 192.168.1.7:7006

下面是打印的集群信息。

[root@192 redis-4.0.6]# src/redis-trib.rb create --replicas 1 192.168.1.7:7001 192.168.1.7:7002 192.168.1.7:7003 192.168.1.7:7004 192.168.1.7:7005 192.168.1.7:7006
>>> Creating cluster
>>> Performing hash slots allocation on 6 nodes...
Using 3 masters:
192.168.1.7:7001
192.168.1.7:7002
192.168.1.7:7003
Adding replica 192.168.1.7:7004 to 192.168.1.7:7001
Adding replica 192.168.1.7:7005 to 192.168.1.7:7002
Adding replica 192.168.1.7:7006 to 192.168.1.7:7003
M: 717ca3ce43f113616687dd57d1ba97862aaa3a2f 192.168.1.7:7001  slots:0-5460 (5461 slots) master
M: add471e5da784f9419a59c235d68b15d9247e4f4 192.168.1.7:7002  slots:5461-10922 (5462 slots) master
M: f69c469c9c17088ad147e90414547fde59ff0f7a 192.168.1.7:7003  slots:10923-16383 (5461 slots) master
S: 4ff2e2d61c0ee006f2c9f12db33c58e235ac66ec 192.168.1.7:7004  replicates 717ca3ce43f113616687dd57d1ba97862aaa3a2f
S: d94fe5e79649e05910dc3fd6d9f0e25ccedaf400 192.168.1.7:7005  replicates add471e5da784f9419a59c235d68b15d9247e4f4
S: 4fd17ea87695b5f8d5cacaa964be204c472e59af 192.168.1.7:7006  replicates f69c469c9c17088ad147e90414547fde59ff0f7a
Can I set the above configuration? (type 'yes' to accept): yes
>>> Nodes configuration updated
>>> Assign a different config epoch to each node
>>> Sending CLUSTER MEET messages to join the cluster
Waiting for the cluster to join.....
>>> Performing Cluster Check (using node 192.168.1.7:7001)
M: 717ca3ce43f113616687dd57d1ba97862aaa3a2f 192.168.1.7:7001   slots:0-5460 (5461 slots) master   1 additional replica(s)
S: 4ff2e2d61c0ee006f2c9f12db33c58e235ac66ec 192.168.1.7:7004   slots: (0 slots) slave   replicates 717ca3ce43f113616687dd57d1ba97862aaa3a2f
S: d94fe5e79649e05910dc3fd6d9f0e25ccedaf400 192.168.1.7:7005   slots: (0 slots) slave   replicates add471e5da784f9419a59c235d68b15d9247e4f4
M: add471e5da784f9419a59c235d68b15d9247e4f4 192.168.1.7:7002   slots:5461-10922 (5462 slots) master   1 additional replica(s)
M: f69c469c9c17088ad147e90414547fde59ff0f7a 192.168.1.7:7003   slots:10923-16383 (5461 slots) master   1 additional replica(s)
S: 4fd17ea87695b5f8d5cacaa964be204c472e59af 192.168.1.7:7006   slots: (0 slots) slave   replicates f69c469c9c17088ad147e90414547fde59ff0f7a
[OK] All nodes agree about slots configuration.>>> Check for open slots...>>> Check slots coverage...
[OK] All 16384 slots covered.

#查看集群状态

$ src/redis-trib.rb check 192.168.1.7 7001

测试

#连接集群连接的IP可以是集群中的任何一个

$ src/redis-cli -c -h 192.168.1.7 -p 7001   

#我们在7001设置了一个foo，在7003可以get出来。