Redis5.0单机伪集群搭建
官网地址:https://redis.io/topics/cluster-tutorial
1、创建目录
新建目录：/root/software/redis
2、下载源码并解压编译
wget http://download.redis.io/releases/redis-5.0.0.tar.gz
tar xzf redis-5.0.0.tar.gz
cd redis-5.0.0
make3、创建6个Redis配置文件
6个配置文件不能在同一个目录，此处我们定义如下：
/root/software/redis/redis-cluster-conf/7001/redis.conf
/root/software/redis/redis-cluster-conf/7002/redis.conf
/root/software/redis/redis-cluster-conf/7003/redis.conf
/root/software/redis/redis-cluster-conf/7004/redis.conf
/root/software/redis/redis-cluster-conf/7005/redis.conf
/root/software/redis/redis-cluster-conf/7006/redis.conf配置文件的内容为：(注意,如果在windows中编辑可能会导致启动时报配置错误问题)
port 7001 #端口
cluster-enabled yes #启用集群模式
cluster-config-file nodes.conf
cluster-node-timeout 5000 #超时时间
appendonly yes
daemonize yes #后台运行
protected-mode no #非保护模式
pidfile /var/run/redis_7001.pid其中 port 和 pidfile 需要随着 文件夹的不同调增。
4、启动节点
/root/software/redis/redis-5.0.0/src/redis-server /root/software/redis/redis-cluster-conf/7001/redis.conf
/root/software/redis/redis-5.0.0/src/redis-server /root/software/redis/redis-cluster-conf/7002/redis.conf
/root/software/redis/redis-5.0.0/src/redis-server /root/software/redis/redis-cluster-conf/7003/redis.conf
/root/software/redis/redis-5.0.0/src/redis-server /root/software/redis/redis-cluster-conf/7004/redis.conf
/root/software/redis/redis-5.0.0/src/redis-server /root/software/redis/redis-cluster-conf/7005/redis.conf
/root/software/redis/redis-5.0.0/src/redis-server /root/software/redis/redis-cluster-conf/7006/redis.conf5、启动集群
/root/software/redis/redis-5.0.0/src/redis-cli --cluster create 127.0.0.1:7001 127.0.0.1:7002 127.0.0.1:7003 127.0.0.1:7004 127.0.0.1:7005 127.0.0.1:7006 --cluster-replicas 1启动后，可看到成功信息，如下：
>>> Performing hash slots allocation on 6 nodes...
Master[0] -> Slots 0 - 5460
Master[1] -> Slots 5461 - 10922
Master[2] -> Slots 10923 - 16383
Adding replica 192.168.2.40:7004 to 192.168.2.40:7001
Adding replica 192.168.2.40:7005 to 192.168.2.40:7002
Adding replica 192.168.2.40:7006 to 192.168.2.40:7003
>>> Trying to optimize slaves allocation for anti-affinity
[WARNING] Some slaves are in the same host as their master
M: 191c645200a8b4d267f71e3354c8248dbb533dde 192.168.2.40:7001
slots:[0-5460] (5461 slots) master
M: 400a08d4e5a534c1b609988105d3e045395fbd12 192.168.2.40:7002
slots:[5461-10922] (5462 slots) master
M: 684f6aa0fbccda295ce6818a8c01ee7255a7b002 192.168.2.40:7003
slots:[10923-16383] (5461 slots) master
S: f2701549ae98315b432d73b49d139ee77d5685b4 192.168.2.40:7004
replicates 684f6aa0fbccda295ce6818a8c01ee7255a7b002
S: 9fdc1e375436767ab815cbddd3df674f3bc2ca99 192.168.2.40:7005
replicates 191c645200a8b4d267f71e3354c8248dbb533dde
S: e7742888ed85b37cff4a98e861e99bb16e8bae2c 192.168.2.40:7006
replicates 400a08d4e5a534c1b609988105d3e045395fbd12
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 192.168.2.40:7001)
M: 191c645200a8b4d267f71e3354c8248dbb533dde 192.168.2.40:7001
slots:[0-5460] (5461 slots) master
1 additional replica(s)
M: 684f6aa0fbccda295ce6818a8c01ee7255a7b002 192.168.2.40:7003
slots:[10923-16383] (5461 slots) master
1 additional replica(s)
S: 9fdc1e375436767ab815cbddd3df674f3bc2ca99 192.168.2.40:7005
slots: (0 slots) slave
replicates 191c645200a8b4d267f71e3354c8248dbb533dde
S: e7742888ed85b37cff4a98e861e99bb16e8bae2c 192.168.2.40:7006
slots: (0 slots) slave
replicates 400a08d4e5a534c1b609988105d3e045395fbd12
M: 400a08d4e5a534c1b609988105d3e045395fbd12 192.168.2.40:7002
slots:[5461-10922] (5462 slots) master
1 additional replica(s)
S: f2701549ae98315b432d73b49d139ee77d5685b4 192.168.2.40:7004
slots: (0 slots) slave
replicates 684f6aa0fbccda295ce6818a8c01ee7255a7b002
[OK] All nodes agree about slots configuration.
>>> Check for open slots...
>>> Check slots coverage...
[OK] All 16384 slots covered.至此，Reids5 集群搭建完成。
3、集群其他操作
1、关闭集群
redis5 提供了关闭集群的工具，在如下目录：
/root/software/redis/redis-5.0.0/utils/create-cluster
打开此文件修改端口为我们自己的，如下所示：
端口PROT设置为7000，NODES为6，工具会自动累加1 生成 7001-7006 六个节点 用于操作。
修改后，执行如下命令关闭集群：
/root/software/redis/redis-5.0.0/utils/create-cluster/create-cluster stop2、重新启动集群(再启动时,用的不是自定义的配置)
/root/software/redis/redis-5.0.0/utils/create-cluster/create-cluster start3、使用脚本文件启动集群(必须要先CD再start否则节点无法运行)
#!/bin/sh
cd /root/software/redis/redis-cluster-conf/7001/
/root/software/redis/redis-5.0.0/src/redis-server /root/software/redis/redis-cluster-conf/7001/redis.conf
cd /root/software/redis/redis-cluster-conf/7002/
/root/software/redis/redis-5.0.0/src/redis-server /root/software/redis/redis-cluster-conf/7002/redis.conf
cd /root/software/redis/redis-cluster-conf/7003/
/root/software/redis/redis-5.0.0/src/redis-server /root/software/redis/redis-cluster-conf/7003/redis.conf
cd /root/software/redis/redis-cluster-conf/7004/
/root/software/redis/redis-5.0.0/src/redis-server /root/software/redis/redis-cluster-conf/7004/redis.conf
cd /root/software/redis/redis-cluster-conf/7005/
/root/software/redis/redis-5.0.0/src/redis-server /root/software/redis/redis-cluster-conf/7005/redis.conf
cd /root/software/redis/redis-cluster-conf/7006/
/root/software/redis/redis-5.0.0/src/redis-server /root/software/redis/redis-cluster-conf/7006/redis.conf
/root/software/redis/redis-5.0.0/src/redis-cli --cluster create 127.0.0.1:7001 127.0.0.1:7002 127.0.0.1:7003 127.0.0.1:7004 127.0.0.1:7005 127.0.0.1:7006 --cluster-replicas 1