centos 7.4 + redis 4.0.9 cluster + make

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。

os依赖包

# yum install gcc gcc-c++ openssl openssl-devel zlib zlib-devel tcl tcl-devel iftop sysstat telnet tree curl lrzsz

下载、编译、安装

http://www.redis.cn/download.html
或者直接用wget
wget http://download.redis.io/releases/redis-4.0.9.tar.gz

redis1、redis2 两个节点都需要操作

# mkdir -p /usr/redis
# cd /usr/redis
# wget http://download.redis.io/releases/redis-4.0.9.tar.gz
# tar -zxvf ./redis-4.0.9.tar.gz
# cd redis-4.0.9
# make
# make test
# make install

redis1 节点上操作，创建 cluster data 目录

# mkdir -p /usr/redis/redis-cluster-data
# cd /usr/redis/redis-cluster-data
# mkdir -p 9001 9002 9003

redis2 节点上操作，创建 cluster data 目录

# mkdir -p /usr/redis/redis-cluster-data
# cd /usr/redis/redis-cluster-data
# mkdir -p 9001 9002 9003

redis1、redis2 两个节点都需要操作
创建bin目录，添加到PATH里

# cd /usr/redis/redis-4.0.9
# mkdir bin
# cd src
# cp mkreleasehdr.sh redis-benchmark redis-check-aof redis-check-rdb redis-cli redis-server redis-sentinel redis-trib.rb ../bin
# vi /etc/profile
PATH=/usr/redis/redis-4.0.9/bin:$PATH

# echo $PATH
/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin
# source /etc/profile
# echo $PATH
/usr/redis/redis-4.0.9/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin

redis cluster 配置

redis1 的 9001 9002 9003 目录下，
redis2 的 9001 9001 9003 目录下都需要创建 redis.conf

$ cd /usr/redis/redis-cluster-data/9001
$ vi redis.conf
#监听port
port 9001
#监听ip
bind 192.168.56.101
#redis后台运行
daemonize yes
#pidfile路径
pidfile /tmp/redis_9001.pid
#开启集群
cluster-enabled yes
#集群的配置文件
cluster-config-file cluster_9001.conf
#请求超时,默认15秒，可自行设置
cluster-node-timeout 15000
#aof模式
appendonly yes
#aof模式文件
appendfilename "appendonly.aof"
#aof同步
appendfsync everysec
#日志层级分为4个等级：debug verbose notice warning
loglevel notice
#日志文件
logfile /var/log/redis/redis-server-9001.log
#数据库个数
databases 16
#工作目录
dir /usr/redis/redis-cluster-data/9001
#最大连接数
maxclients 20000
#redis内存限制
maxmemory 1gb
#redis内存策略
maxmemory-policy allkeys-lru
#rdb校验
rdbchecksum yes

# tree
.
├── 9001
│   └── redis.conf
├── 9002
│   └── redis.conf
└── 9003
    └── redis.conf

3 directories, 3 files

启动redis

redis1 上启动 redis

# cd /usr/redis/redis-cluster-data/9001
# redis-server /usr/redis/redis-cluster-data/9001/redis.conf
# cd /usr/redis/redis-cluster-data/9002
# redis-server /usr/redis/redis-cluster-data/9002/redis.conf
# cd /usr/redis/redis-cluster-data/9003
# redis-server /usr/redis/redis-cluster-data/9003/redis.conf
# tree
.
├── 9001
│   ├── appendonly.aof
│   ├── cluster_9001.conf
│   └── redis.conf
├── 9002
│   ├── appendonly.aof
│   ├── cluster_9002.conf
│   └── redis.conf
└── 9003
    ├── appendonly.aof
    ├── cluster_9003.conf
    └── redis.conf

3 directories, 9 files

redis2 上启动 redis

# cd /usr/redis/redis-cluster-data/9001
# redis-server /usr/redis/redis-cluster-data/9001/redis.conf
# cd /usr/redis/redis-cluster-data/9002
# redis-server /usr/redis/redis-cluster-data/9002/redis.conf
# cd /usr/redis/redis-cluster-data/9003
# redis-server /usr/redis/redis-cluster-data/9003/redis.conf
# tree
.
├── 9001
│   ├── appendonly.aof
│   ├── cluster_9001.conf
│   └── redis.conf
├── 9002
│   ├── appendonly.aof
│   ├── cluster_9002.conf
│   └── redis.conf
└── 9003
    ├── appendonly.aof
    ├── cluster_9003.conf
    └── redis.conf

3 directories, 9 files

查看redis 的启动情况

# ps -ef|grep -i redis
root     20531     1  0 May17 ?        00:00:17 redis-server 192.168.56.101:9001 [cluster]
root     20536     1  0 May17 ?        00:00:17 redis-server 192.168.56.101:9002 [cluster]
root     20541     1  0 May17 ?        00:00:17 redis-server 192.168.56.101:9003 [cluster]
root     30028  1851  0 09:14 pts/0    00:00:00 grep --color=auto -i redis

# netstat -antp|grep -i redis
tcp        0      0 192.168.56.101:9001     0.0.0.0:*               LISTEN      20531/redis-server
tcp        0      0 192.168.56.101:9002     0.0.0.0:*               LISTEN      20536/redis-server
tcp        0      0 192.168.56.101:9003     0.0.0.0:*               LISTEN      20541/redis-server
tcp        0      0 192.168.56.101:19001    0.0.0.0:*               LISTEN      20531/redis-server
tcp        0      0 192.168.56.101:19002    0.0.0.0:*               LISTEN      20536/redis-server
tcp        0      0 192.168.56.101:19003    0.0.0.0:*               LISTEN      20541/redis-server

# ps -ef|grep -i redis
root     16509     1  0 May17 ?        00:00:17 redis-server 192.168.56.102:9001 [cluster]
root     16537     1  0 May17 ?        00:00:17 redis-server 192.168.56.102:9002 [cluster]
root     16632     1  0 May17 ?        00:00:17 redis-server 192.168.56.102:9003 [cluster]
root     26083  1837  0 09:15 pts/0    00:00:00 grep --color=auto -i redis

# netstat -antp|grep -i redis
tcp        0      0 192.168.56.102:9001     0.0.0.0:*               LISTEN      16509/redis-server
tcp        0      0 192.168.56.102:9002     0.0.0.0:*               LISTEN      16537/redis-server
tcp        0      0 192.168.56.102:9003     0.0.0.0:*               LISTEN      16632/redis-server
tcp        0      0 192.168.56.102:19001    0.0.0.0:*               LISTEN      16509/redis-server
tcp        0      0 192.168.56.102:19002    0.0.0.0:*               LISTEN      16537/redis-server
tcp        0      0 192.168.56.102:19003    0.0.0.0:*               LISTEN      16632/redis-server

创建redis集群

执行 redis-trib.rb 前必须安装ruby >= 2.2.2.

# yum install ruby ruby-devel ruby-libs rubygems rpm-build
# gem install redis
Fetching: redis-4.0.1.gem (100%)
ERROR:  Error installing redis:
    redis requires Ruby version >= 2.2.2.

默认的centos 7.4 yum源只支持到 ruby 2.0.0。所有上面的yum install 就不要执行了，我已经帮大家采坑了。
参考一哥们的解决办法：
https://www.cnblogs.com/carryping/p/7447823.html
先安装rvm(rvm : Ruby enVironment Manager)，再把ruby版本提升至2.3.4，中间有错误根据错误提示处理就可以了。
1.安装curl

# yum install curl

2.安装rvm

# curl -L get.rvm.io | bash -s stable

3.解压rvm

# cd /usr/local/rvm/archives
# ls -l
# tar -zxvf ./rvm-1.29.3.tgz
# source /usr/local/rvm/archives/rvm-1.29.3/scripts/rvm

4.查看rvm库中已知的ruby版本

# rvm list known

5.安装一个ruby版本

# rvm install 2.3.4
Searching for binary rubies, this might take some time.
Found remote file https://rvm_io.global.ssl.fastly.net/binaries/centos/7/x86_64/ruby-2.3.4.tar.bz2
Checking requirements for centos.
Requirements installation successful.
ruby-2.3.4 - #configure
ruby-2.3.4 - #download
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100 25.2M  100 25.2M    0     0  3126k      0  0:00:08  0:00:08 --:--:-- 3384k
ruby-2.3.4 - #validate archive
ruby-2.3.4 - #extract
ruby-2.3.4 - #validate binary
ruby-2.3.4 - #setup
ruby-2.3.4 - #gemset created /usr/local/rvm/archives/rvm-1.29.3/gems/ruby-2.3.4@global
ruby-2.3.4 - #importing gemset /usr/local/rvm/archives/rvm-1.29.3/gemsets/global.gems.........................
ruby-2.3.4 - #generating global wrappers.......
ruby-2.3.4 - #gemset created /usr/local/rvm/archives/rvm-1.29.3/gems/ruby-2.3.4
ruby-2.3.4 - #importing gemsetfile /usr/local/rvm/archives/rvm-1.29.3/gemsets/default.gems evaluated to empty gem list
ruby-2.3.4 - #generating default wrappers.......

6.使用一个ruby版本

# rvm use 2.3.4

7.设置默认版本

8.卸载一个已知版本

# rvm remove 2.0.0
# ruby --version
ruby 2.3.4p301 (2017-03-30 revision 58214) [x86_64-linux]

9.安装redis依赖

# gem install redis
Fetching: redis-4.0.1.gem (100%)
Successfully installed redis-4.0.1
Parsing documentation for redis-4.0.1
Installing ri documentation for redis-4.0.1
Done installing documentation for redis after 0 seconds
1 gem installed

修改环境变量

# echo $PATH
/usr/local/rvm/archives/rvm-1.29.3/gems/ruby-2.3.4/bin:/usr/local/rvm/archives/rvm-1.29.3/gems/ruby-2.3.4@global/bin:/usr/local/rvm/archives/rvm-1.29.3/rubies/ruby-2.3.4/bin:/usr/local/rvm/archives/rvm-1.29.3/bin:/usr/redis/redis-4.0.9/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin

# vi /etc/profile
export PATH=/usr/local/rvm/archives/rvm-1.29.3/gems/ruby-2.3.4/bin:/usr/local/rvm/archives/rvm-1.29.3/gems/ruby-2.3.4@global/bin:/usr/local/rvm/archives/rvm-1.29.3/rubies/ruby-2.3.4/bin:/usr/local/rvm/archives/rvm-1.29.3/bin:/usr/redis/redis-4.0.9/bin:$PATH

正式创建

# redis-trib.rb create --replicas 1 192.168.56.101:9001 192.168.56.101:9002 192.168.56.101:9003 192.168.56.102:9001 192.168.56.102:9002 192.168.56.102:9003
>>> Creating cluster
>>> Performing hash slots allocation on 6 nodes...
Using 3 masters:
192.168.56.101:9001
192.168.56.102:9001
192.168.56.101:9002
Adding replica 192.168.56.102:9003 to 192.168.56.101:9001
Adding replica 192.168.56.101:9003 to 192.168.56.102:9001
Adding replica 192.168.56.102:9002 to 192.168.56.101:9002
M: 8240d131c58c8b687c11462e03825bdba00af53b 192.168.56.101:9001
   slots:0-5460 (5461 slots) master
M: 0bdd8387a662984e95f5103522f52e75eceaab69 192.168.56.101:9002
   slots:10923-16383 (5461 slots) master
S: e38d78fc68b69d4e5f347cf96f31a9cb6a02dccf 192.168.56.101:9003
   replicates 12e2353c9f0b085d2684da46ba0dc69575d68603
M: 12e2353c9f0b085d2684da46ba0dc69575d68603 192.168.56.102:9001
   slots:5461-10922 (5462 slots) master
S: 2b48fd08a8ec55eba5bfa0d163d02c8462637302 192.168.56.102:9002
   replicates 0bdd8387a662984e95f5103522f52e75eceaab69
S: cf22edbc6463b8b31536819297ac50e9e39175ad 192.168.56.102:9003
   replicates 8240d131c58c8b687c11462e03825bdba00af53b
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 192.168.56.101:9001)
M: 8240d131c58c8b687c11462e03825bdba00af53b 192.168.56.101:9001
   slots:0-5460 (5461 slots) master
   1 additional replica(s)
S: cf22edbc6463b8b31536819297ac50e9e39175ad 192.168.56.102:9003
   slots: (0 slots) slave
   replicates 8240d131c58c8b687c11462e03825bdba00af53b
S: e38d78fc68b69d4e5f347cf96f31a9cb6a02dccf 192.168.56.101:9003
   slots: (0 slots) slave
   replicates 12e2353c9f0b085d2684da46ba0dc69575d68603
S: 2b48fd08a8ec55eba5bfa0d163d02c8462637302 192.168.56.102:9002
   slots: (0 slots) slave
   replicates 0bdd8387a662984e95f5103522f52e75eceaab69
M: 0bdd8387a662984e95f5103522f52e75eceaab69 192.168.56.101:9002
   slots:10923-16383 (5461 slots) master
   1 additional replica(s)
M: 12e2353c9f0b085d2684da46ba0dc69575d68603 192.168.56.102:9001
   slots:5461-10922 (5462 slots) master
   1 additional replica(s)
[OK] All nodes agree about slots configuration.
>>> Check for open slots...
>>> Check slots coverage...
[OK] All 16384 slots covered.

# cd /usr/redis/redis-cluster-data
# tree
.
├── 9001
│   ├── appendonly.aof
│   ├── cluster_9001.conf
│   ├── dump.rdb
│   └── redis.conf
├── 9002
│   ├── appendonly.aof
│   ├── cluster_9002.conf
│   ├── dump.rdb
│   └── redis.conf
└── 9003
    ├── appendonly.aof
    ├── cluster_9003.conf
    ├── dump.rdb
    └── redis.conf

3 directories, 12 files

连接redis

# redis-cli -h 192.168.56.101 -p 9001 -c
192.168.56.101:9001> 
192.168.56.101:9001> 
192.168.56.101:9001> cluster info
cluster_state:ok
cluster_slots_assigned:16384
cluster_slots_ok:16384
cluster_slots_pfail:0
cluster_slots_fail:0
cluster_known_nodes:6
cluster_size:3
cluster_current_epoch:6
cluster_my_epoch:1
cluster_stats_messages_ping_sent:23175
cluster_stats_messages_pong_sent:25275
cluster_stats_messages_sent:48450
cluster_stats_messages_ping_received:25270
cluster_stats_messages_pong_received:23175
cluster_stats_messages_meet_received:5
cluster_stats_messages_received:48450

192.168.56.101:9001> cluster nodes
cf22edbc6463b8b31536819297ac50e9e39175ad 192.168.56.102:9003@19003 slave 8240d131c58c8b687c11462e03825bdba00af53b 0 1526649623970 6 connected
8240d131c58c8b687c11462e03825bdba00af53b 192.168.56.101:9001@19001 myself,master - 0 1526649623000 1 connected 0-5460
12e2353c9f0b085d2684da46ba0dc69575d68603 192.168.56.102:9001@19001 slave e38d78fc68b69d4e5f347cf96f31a9cb6a02dccf 0 1526649621000 7 connected
2b48fd08a8ec55eba5bfa0d163d02c8462637302 192.168.56.102:9002@19002 slave 0bdd8387a662984e95f5103522f52e75eceaab69 0 1526649624972 5 connected
0bdd8387a662984e95f5103522f52e75eceaab69 192.168.56.101:9002@19002 master - 0 1526649622000 2 connected 10923-16383
e38d78fc68b69d4e5f347cf96f31a9cb6a02dccf 192.168.56.101:9003@19003 master - 0 1526649622963 7 connected 5461-10922