从redis官网下载(http://download.redis.io/releases/redis-5.0.5.tar.gz)最新版本的redis的源码包redis-5.0.5.tar.gz。
安装redis
创建目录/home/test/redis，上传redis包并解压缩
[root@test local]#mkdir -p /home/test/redis
将redis-5.0.5.tar.gz上传到服务器的/home/test/redis目录下
[root@test local]#cd /home/test/redis
[root@test local]#tar -xzf redis-5.0.5.tar.gz
编译安装
执行命令make && make install
[root@test redis]# cd redis-5.0.5
[root@test redis]# make && make install
创建集群目录
在/home/test/redis目录下创建集群目录
[root@test redis]# mkdir redis-cluster
[root@test redis]# cd redis-cluster/
在集群目录下创建节点目录
小编的示例中是在单台服务器安装9个节点，所以下面创建9个目录
[root@test redis-cluster]# mkdir 7000 7001 7002 7003 7004 7005 7006 7007 7008
[root@test redis-cluster]# ls
7000 7001 7002 7003 7004 7005 7006 7007 7008
集群中的节点配置文件修改
把如下redis.conf 配置内容粘贴进去
[root@test local]#vi 7000/redis.conf
[root@test local]#vi 7001/redis.conf
[root@test local]#vi 7002/redis.conf
[root@test local]#vi 7003/redis.conf
[root@test local]#vi 7004/redis.conf
[root@test local]#vi 7005/redis.conf
[root@test local]#vi 7006/redis.conf
[root@test local]#vi 7007/redis.conf
[root@test local]#vi 7008/redis.conf
redis.conf 配置
#端口7000,7001,7002
port 7000
#默认ip为127.0.0.1，需要改为其他节点机器可访问的ip，否则创建集群时无法访问对应的端口，无法创建集群
bind 172.30.14.240
#redis后台运行
daemonize yes
#pidfile文件对应7000，7001，7002…
pidfile /var/run/redis_7000.pid
#开启集群，把注释#去掉
cluster-enabled yes
#集群的配置，配置文件首次启动自动生成 7000，7001，7002
cluster-config-file nodes_7000.conf
#请求超时，默认15秒，可自行设置
cluster-node-timeout 10100
Eof日志开启，有需要就开启，它会每次写操作都记录一条日志
appendonly yes
集群中的节点启动
/home/test/redis/redis-5.0.5/src/redis-server /home/test/redis/redis-cluster/7000/redis.conf
/home/test/redis/redis-5.0.5/src/redis-server /home/test/redis/redis-cluster/7001/redis.conf
/home/test/redis/redis-5.0.5/src/redis-server /home/test/redis/redis-cluster/7002/redis.conf
/home/test/redis/redis-5.0.5/src/redis-server /home/test/redis/redis-cluster/7003/redis.conf
/home/test/redis/redis-5.0.5/src/redis-server /home/test/redis/redis-cluster/7004/redis.conf
/home/test/redis/redis-5.0.5/src/redis-server /home/test/redis/redis-cluster/7005/redis.conf
/home/test/redis/redis-5.0.5/src/redis-server /home/test/redis/redis-cluster/7006/redis.conf
/home/test/redis/redis-5.0.5/src/redis-server /home/test/redis/redis-cluster/7007/redis.conf
/home/test/redis/redis-5.0.5/src/redis-server /home/test/redis/redis-cluster/7008/redis.conf
出现以下信息，表示启动成功：
41846:C 24 Oct 10:51:47.070 # oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo
41846:C 24 Oct 10:51:47.070 # Redis version=5.0.5, bits=64, commit=00000000, modified=0, pid=41846, just started
41846:C 24 Oct 10:51:47.070 # Configuration loaded
检查服务
[root@test redis-cluster]# ps -ef | grep redis
root 41396 1 0 10:51 ? 00:00:00 /home/test/redis/redis-5.0.5/src/redis-server 172.30.14.240:7000 [cluster]
root 41601 1 0 10:51 ? 00:00:00 /home/test/redis/redis-5.0.5/src/redis-server 172.30.14.240:7001 [cluster]
root 41645 1 0 10:51 ? 00:00:00 /home/test/redis/redis-5.0.5/src/redis-server 172.30.14.240:7002 [cluster]
root 41779 1 0 10:51 ? 00:00:00 /home/test/redis/redis-5.0.5/src/redis-server 172.30.14.240:7003 [cluster]
root 41818 1 0 10:51 ? 00:00:00 /home/test/redis/redis-5.0.5/src/redis-server 172.30.14.240:7004 [cluster]
root 41826 1 0 10:51 ? 00:00:00 /home/test/redis/redis-5.0.5/src/redis-server 172.30.14.240:7005 [cluster]
root 41834 1 0 10:51 ? 00:00:00 /home/test/redis/redis-5.0.5/src/redis-server 172.30.14.240:7006 [cluster]
root 41839 1 0 10:51 ? 00:00:00 /home/test/redis/redis-5.0.5/src/redis-server 172.30.14.240:7007 [cluster]
root 41847 1 0 10:51 ? 00:00:00 /home/test/redis/redis-5.0.5/src/redis-server 172.30.14.240:7008 [cluster]
监听redis端口
$ netstat -tnlp | grep redis //监听redis端口
[root@test redis-cluster]# netstat -tnlp | grep redis
tcp 0 0 172.30.14.240:17000 0.0.0.0:* LISTEN 41396/redis-server
tcp 0 0 172.30.14.240:17001 0.0.0.0:* LISTEN 41601/redis-server
tcp 0 0 172.30.14.240:17002 0.0.0.0:* LISTEN 41645/redis-server
tcp 0 0 172.30.14.240:17003 0.0.0.0:* LISTEN 41779/redis-server
tcp 0 0 172.30.14.240:17004 0.0.0.0:* LISTEN 41818/redis-server
tcp 0 0 172.30.14.240:17005 0.0.0.0:* LISTEN 41826/redis-server
tcp 0 0 172.30.14.240:17006 0.0.0.0:* LISTEN 41834/redis-server
tcp 0 0 172.30.14.240:17007 0.0.0.0:* LISTEN 41839/redis-server
tcp 0 0 172.30.14.240:17008 0.0.0.0:* LISTEN 41847/redis-server
tcp 0 0 172.30.14.240:7000 0.0.0.0:* LISTEN 41396/redis-server
tcp 0 0 172.30.14.240:7001 0.0.0.0:* LISTEN 41601/redis-server
tcp 0 0 172.30.14.240:7002 0.0.0.0:* LISTEN 41645/redis-server
tcp 0 0 172.30.14.240:7003 0.0.0.0:* LISTEN 41779/redis-server
tcp 0 0 172.30.14.240:7004 0.0.0.0:* LISTEN 41818/redis-server
tcp 0 0 172.30.14.240:7005 0.0.0.0:* LISTEN 41826/redis-server
tcp 0 0 172.30.14.240:7006 0.0.0.0:* LISTEN 41834/redis-server
tcp 0 0 172.30.14.240:7007 0.0.0.0:* LISTEN 41839/redis-server
tcp 0 0 172.30.14.240:7008 0.0.0.0:* LISTEN 41847/redis-server
创建集群
注意：在任意一台上运行 不要在每台机器上都运行，一台就够了
/home/test/redis/redis-5.0.5/src/redis-cli --cluster create 172.30.14.240:7000 172.30.14.240:7001 172.30.14.240:7002 172.30.14.240:7003 172.30.14.240:7004 172.30.14.240:7005 172.30.14.240:7006 172.30.14.240:7007 172.30.14.240:7008 --cluster-replicas 1
需要将其中的IP和端口改为实际安装的的IP地址和端口
注意：此步骤中需要手动敲入yes
[root@test redis-cluster]# /home/test/redis/redis-5.0.5/src/redis-cli --cluster create --replicas 1 172.30.14.240:7000 172.30.14.240:7001 172.30.14.240:7002 172.30.14.240:7003 172.30.14.240:7004 172.30.14.240:7005 172.30.14.240:7006 172.30.14.240:7007 172.30.14.240:7008
Creating cluster
Performing hash slots allocation on 9 nodes…
Using 4 masters:
172.30.14.240:7000
172.30.14.240:7001
172.30.14.240:7002
172.30.14.240:7003
Adding replica 172.30.14.240:7004 to 172.30.14.240:7000
Adding replica 172.30.14.240:7005 to 172.30.14.240:7001
Adding replica 172.30.14.240:7006 to 172.30.14.240:7002
Adding replica 172.30.14.240:7007 to 172.30.14.240:7003
Adding replica 172.30.14.240:7008 to 172.30.14.240:7000
M: 5992c09409c106b566f7876935d39df2ced31d63 172.30.14.240:7000
slots:0-4095 (4096 slots) master
M: 8e842f0cf0cd2569effa8170834618a6fceb144c 172.30.14.240:7001
slots:4096-8191 (4096 slots) master
M: d5d363c4c7d0855e245a0121c098918d9a2d9f54 172.30.14.240:7002
slots:8192-12287 (4096 slots) master
M: c6422e581cface110c30d302db796e88dca49d8d 172.30.14.240:7003
slots:12288-16383 (4096 slots) master
S: 008aab9504f9afac5be41aea92d995d4d1f94c0c 172.30.14.240:7004
replicates 5992c09409c106b566f7876935d39df2ced31d63
S: 7304749ee131927a21d48fb7d4cb360dacf3b7ac 172.30.14.240:7005
replicates 8e842f0cf0cd2569effa8170834618a6fceb144c
S: bf809bd10b59b16daa4169f950891c0839bfa649 172.30.14.240:7006
replicates d5d363c4c7d0855e245a0121c098918d9a2d9f54
S: 0e93a0a1c627cc84572798b78142f9e73407ec72 172.30.14.240:7007
replicates c6422e581cface110c30d302db796e88dca49d8d
S: de666ccd190e9a7b826b558d89ee2cddf75f43e7 172.30.14.240:7008
replicates 5992c09409c106b566f7876935d39df2ced31d63
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 172.30.14.240:7000)
M: 5992c09409c106b566f7876935d39df2ced31d63 172.30.14.240:7000
slots:0-4095 (4096 slots) master
2 additional replica(s)
M: c6422e581cface110c30d302db796e88dca49d8d 172.30.14.240:7003
slots:12288-16383 (4096 slots) master
1 additional replica(s)
S: de666ccd190e9a7b826b558d89ee2cddf75f43e7 172.30.14.240:7008
slots: (0 slots) slave
replicates 5992c09409c106b566f7876935d39df2ced31d63
S: 7304749ee131927a21d48fb7d4cb360dacf3b7ac 172.30.14.240:7005
slots: (0 slots) slave
replicates 8e842f0cf0cd2569effa8170834618a6fceb144c
S: bf809bd10b59b16daa4169f950891c0839bfa649 172.30.14.240:7006
slots: (0 slots) slave
replicates d5d363c4c7d0855e245a0121c098918d9a2d9f54
M: d5d363c4c7d0855e245a0121c098918d9a2d9f54 172.30.14.240:7002
slots:8192-12287 (4096 slots) master
1 additional replica(s)
M: 8e842f0cf0cd2569effa8170834618a6fceb144c 172.30.14.240:7001
slots:4096-8191 (4096 slots) master
1 additional replica(s)
S: 0e93a0a1c627cc84572798b78142f9e73407ec72 172.30.14.240:7007
slots: (0 slots) slave
replicates c6422e581cface110c30d302db796e88dca49d8d
S: 008aab9504f9afac5be41aea92d995d4d1f94c0c 172.30.14.240:7004
slots: (0 slots) slave
replicates 5992c09409c106b566f7876935d39df2ced31d63
[OK] All nodes agree about slots configuration.
Check for open slots…
Check slots coverage…
[OK] All 16384 slots covered.
关闭集群
批量关闭
pkill redis
逐个关闭
/home/test/redis/redis-5.0.5/src/redis-cli -c -h 172.30.14.240 -p 7000 shutdown
/home/test/redis/redis-5.0.5/src/redis-cli -c -h 172.30.14.240 -p 7000 shutdown
/home/test/redis/redis-5.0.5/src/redis-cli -c -h 172.30.14.240 -p 7000 shutdown
/home/test/redis/redis-5.0.5/src/redis-cli -c -h 172.30.14.240 -p 7000 shutdown
/home/test/redis/redis-5.0.5/src/redis-cli -c -h 172.30.14.240 -p 7000 shutdown
/home/test/redis/redis-5.0.5/src/redis-cli -c -h 172.30.14.240 -p 7000 shutdown
集群验证
连接集群测试
参数 -C 可连接到集群，因为 redis.conf 将 bind 改为了ip地址，所以 -h 参数不可以省略，-p 参数为端口号
我们在172.30.14.240机器redis 7000 的节点set 一个key
[root@test redis-cluster]# /home/test/redis/redis-5.0.5/src/redis-cli -h 172.30.14.240 -c -p 7000
172.30.14.240:7000> set name test
-> Redirected to slot [5798] located at 172.30.14.240:7001
OK
172.30.14.240:7001> get name
“test”
172.30.14.240:7001>
发现redis set name 之后重定向到172.30.14.240机器 redis 7001 这个节点
检查集群状态
$ /home/test/redis/redis-5.0.5/src/ redis-cli --cluster check 172.30.14.240:7000
[root@test redis-cluster]# /home/test/redis/redis-5.0.5/src/redis-cli --cluster check 172.30.14.240:7000
Performing Cluster Check (using node 172.30.14.240:7000)
M: 5992c09409c106b566f7876935d39df2ced31d63 172.30.14.240:7000
slots:0-4095 (4096 slots) master
2 additional replica(s)
M: c6422e581cface110c30d302db796e88dca49d8d 172.30.14.240:7003
slots:12288-16383 (4096 slots) master
1 additional replica(s)
S: de666ccd190e9a7b826b558d89ee2cddf75f43e7 172.30.14.240:7008
slots: (0 slots) slave
replicates 5992c09409c106b566f7876935d39df2ced31d63
S: 7304749ee131927a21d48fb7d4cb360dacf3b7ac 172.30.14.240:7005
slots: (0 slots) slave
replicates 8e842f0cf0cd2569effa8170834618a6fceb144c
S: bf809bd10b59b16daa4169f950891c0839bfa649 172.30.14.240:7006
slots: (0 slots) slave
replicates d5d363c4c7d0855e245a0121c098918d9a2d9f54
M: d5d363c4c7d0855e245a0121c098918d9a2d9f54 172.30.14.240:7002
slots:8192-12287 (4096 slots) master
1 additional replica(s)
M: 8e842f0cf0cd2569effa8170834618a6fceb144c 172.30.14.240:7001
slots:4096-8191 (4096 slots) master
1 additional replica(s)
S: 0e93a0a1c627cc84572798b78142f9e73407ec72 172.30.14.240:7007
slots: (0 slots) slave
replicates c6422e581cface110c30d302db796e88dca49d8d
S: 008aab9504f9afac5be41aea92d995d4d1f94c0c 172.30.14.240:7004
slots: (0 slots) slave
replicates 5992c09409c106b566f7876935d39df2ced31d63
[OK] All nodes agree about slots configuration.
Check for open slots…
Check slots coverage…
[OK] All 16384 slots covered.
列出集群节点
列出集群当前已知的所有节点（node），以及这些节点的相关信息
[root@test redis-cluster]# /home/test/redis/redis-5.0.5/src/redis-cli -h 172.30.14.240 -c -p 7000
172.30.14.240:7000> cluster nodes
c6422e581cface110c30d302db796e88dca49d8d 172.30.14.240:7003@17003 master - 0 1508814078128 4 connected 12288-16383
de666ccd190e9a7b826b558d89ee2cddf75f43e7 172.30.14.240:7008@17008 slave 5992c09409c106b566f7876935d39df2ced31d63 0 1508814078000 9 connected
7304749ee131927a21d48fb7d4cb360dacf3b7ac 172.30.14.240:7005@17005 slave 8e842f0cf0cd2569effa8170834618a6fceb144c 0 1508814077125 6 connected
bf809bd10b59b16daa4169f950891c0839bfa649 172.30.14.240:7006@17006 slave d5d363c4c7d0855e245a0121c098918d9a2d9f54 0 1508814077000 7 connected
d5d363c4c7d0855e245a0121c098918d9a2d9f54 172.30.14.240:7002@17002 master - 0 1508814079130 3 connected 8192-12287
8e842f0cf0cd2569effa8170834618a6fceb144c 172.30.14.240:7001@17001 master - 0 1508814078128 2 connected 4096-8191
0e93a0a1c627cc84572798b78142f9e73407ec72 172.30.14.240:7007@17007 slave c6422e581cface110c30d302db796e88dca49d8d 0 1508814080131 8 connected
008aab9504f9afac5be41aea92d995d4d1f94c0c 172.30.14.240:7004@17004 slave 5992c09409c106b566f7876935d39df2ced31d63 0 1508814076000 5 connected
5992c09409c106b566f7876935d39df2ced31d63 172.30.14.240:7000@17000 myself,master - 0 1508814077000 1 connected 0-4095
打印集群信息
172.30.14.240:7000> cluster info
cluster_state:ok
cluster_slots_assigned:16384
cluster_slots_ok:16384
cluster_slots_pfail:0
cluster_slots_fail:0
cluster_known_nodes:9
cluster_size:4
cluster_current_epoch:9
cluster_my_epoch:1
cluster_stats_messages_ping_sent:523
cluster_stats_messages_pong_sent:546
cluster_stats_messages_sent:1069
cluster_stats_messages_ping_received:538
cluster_stats_messages_pong_received:523
cluster_stats_messages_meet_received:8
cluster_stats_messages_received:1069
集群命令
语法格式
redis-cli -c -p port
集群
cluster info ：打印集群的信息
cluster nodes ：列出集群当前已知的所有节点（ node），以及这些节点的相关信息。
节点
cluster meet ：将 ip 和 port 所指定的节点添加到集群当中，让它成为集群的一份子。
cluster forget
：从集群中移除 node_id 指定的节点,node_id通过cluster nodes查询
cluster replicate ：将当前节点设置为 node_id 指定的节点的从节点。
cluster saveconfig ：将节点的配置文件保存到硬盘里面。
槽(slot)
cluster addslots [slot …] ：将一个或多个槽（ slot）指派（ assign）给当前节点。
cluster delslots [slot …] ：移除一个或多个槽对当前节点的指派。
cluster flushslots ：移除指派给当前节点的所有槽，让当前节点变成一个没有指派任何槽的节点。
cluster setslot node ：将槽 slot 指派给 node_id 指定的节点，如果槽已经指派给另一个节点，那么先让另一个节点删除该槽>，然后再进行指派。
cluster setslot migrating ：将本节点的槽 slot 迁移到 node_id 指定的节点中。
cluster setslot importing ：从 node_id 指定的节点中导入槽 slot 到本节点。
cluster setslot stable ：取消对槽 slot 的导入（ import）或者迁移（ migrate）。
键
cluster keyslot ：计算键 key 应该被放置在哪个槽上。
cluster countkeysinslot ：返回槽 slot 目前包含的键值对数量。
cluster getkeysinslot ：返回 count 个 slot 槽中的键