概述

redis官网：https://redis.io/

安装环境

安装部署

依赖环境安装

yum -y install gcc gcc-c++ kernel-devel make cpp binutils glibc glibc-kernheaders glibc-common glibc-devel tcl wget
yum -y install centos-release-scl && yum -y install devtoolset-9-gcc devtoolset-9-gcc-c++ devtoolset-9-binutils && scl enable devtoolset-9 bash
echo "source /opt/rh/devtoolset-9/enable" >> /etc/profile
source /etc/profile

redis安装

tar zxf redis-6.0.9.tar.gz && cd redis-6.0.9
make && make PREFIX=/data/redis install
<!--根据实际情况更改路径-->
mkdir -p /data/redis/etc
cp redis.conf /data/redis/etc/
cp -ra /data/redis/ /data/redis01

基础配置

vim /data/redis/etc/redis.conf

# 修改一下配置
# redis以守护进程的方式运行
# no表示不以守护进程的方式运行(会占用一个终端)  
daemonize yes
# 客户端闲置多长时间后断开连接，默认为0关闭此功能
timeout 300
# 设置redis日志级别，默认级别：notice                    
loglevel verbose
# 设置日志文件的输出方式,如果以守护进程的方式运行redis 默认:"" 
# 并且日志输出设置为stdout,那么日志信息就输出到/dev/null里面去了 
logfile stdout
# 设置密码授权
# requirepass <设置密码>
# 监听ip
bind 0.0.0.0
# 监听端口
port 6379
# 开启集群功能
cluster-enabled yes

vim /data/redis01/etc/redis.conf

# 修改一下配置
# redis以守护进程的方式运行
# no表示不以守护进程的方式运行(会占用一个终端)  
daemonize yes
# 客户端闲置多长时间后断开连接，默认为0关闭此功能
timeout 300
# 设置redis日志级别，默认级别：notice                    
loglevel verbose
# 设置日志文件的输出方式,如果以守护进程的方式运行redis 默认:"" 
# 并且日志输出设置为stdout,那么日志信息就输出到/dev/null里面去了 
logfile stdout
# 设置密码授权
# requirepass <设置密码>
# 监听ip
bind 0.0.0.0
# 监听端口
port 6380
# 开启集群功能
cluster-enabled yes

防火墙开放端口

三台机器都放行端口

firewall-cmd --zone=public --add-port=6379/tcp --permanent
firewall-cmd --zone=public --add-port=16379/tcp --permanent
firewall-cmd --zone=public --add-port=6380/tcp --permanent
firewall-cmd --zone=public --add-port=16380/tcp --permanent
firewall-cmd --reload
setenforce 0

配置启停脚本

vim /data/start_redis.sh

#!/bin/bash
cd /data/redis/
./bin/redis-server  ./etc/redis.conf
cd /data/redis01/
./bin/redis-server  ./etc/redis.conf

vim /data/stop_redis.sh

#!/bin/bash
ps -aux | grep redis | awk -F " " '{print $2}' | xargs kill -9

redis服务启动

# 停止
   sh -x /data/stop_redis.sh
   # 启动
   sh -x /data/start_redis.sh

创建集群

# 任意一台服务器
/data/redis/bin/redis-cli --cluster create 192.168.199.10:6379 192.168.199.10:6380 192.168.199.11:6379 192.168.199.11:6380 192.168.199.12:6379 192.168.199.12:6380 --cluster-replicas 1
>>> Performing hash slots allocation on 6 nodes...
Master[0] -> Slots 0 - 5460
Master[1] -> Slots 5461 - 10922
Master[2] -> Slots 10923 - 16383
Adding replica 192.168.199.11:6380 to 192.168.199.10:6379
Adding replica 192.168.199.12:6380 to 192.168.199.11:6379
Adding replica 192.168.199.10:6380 to 192.168.199.12:6379
M: 15987d9aa5452baeb197d31d0b28cf10403e1fc4 192.168.199.10:6379
   slots:[0-5460] (5461 slots) master
S: 76d44a73239971ab902effd30e11a2b0c108658d 192.168.199.10:6380
   replicates 46b4e50abb2dc8e14467303a59ddfa7b9a294dfe
M: eb97c3a7ad1ae973515c65a981fe2c556315639d 192.168.199.11:6379
   slots:[5461-10922] (5462 slots) master
S: db11544f435938e6f506595f0a94e6248e7a3787 192.168.199.11:6380
   replicates 15987d9aa5452baeb197d31d0b28cf10403e1fc4
M: 46b4e50abb2dc8e14467303a59ddfa7b9a294dfe 192.168.199.12:6379
   slots:[10923-16383] (5461 slots) master
S: a901eb8204b607f45c0c5d521fef422e5a60caa4 192.168.199.12:6380
   replicates eb97c3a7ad1ae973515c65a981fe2c556315639d
   <！-- 此处输入yes代表同意以删除配置创建集群 -->
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 192.168.199.10:6379)
M: 15987d9aa5452baeb197d31d0b28cf10403e1fc4 192.168.199.10:6379
   slots:[0-5460] (5461 slots) master
   1 additional replica(s)
S: db11544f435938e6f506595f0a94e6248e7a3787 192.168.199.11:6380
   slots: (0 slots) slave
   replicates 15987d9aa5452baeb197d31d0b28cf10403e1fc4
M: eb97c3a7ad1ae973515c65a981fe2c556315639d 192.168.199.11:6379
   slots:[5461-10922] (5462 slots) master
   1 additional replica(s)
S: 76d44a73239971ab902effd30e11a2b0c108658d 192.168.199.10:6380
   slots: (0 slots) slave
   replicates 46b4e50abb2dc8e14467303a59ddfa7b9a294dfe
S: a901eb8204b607f45c0c5d521fef422e5a60caa4 192.168.199.12:6380
   slots: (0 slots) slave
   replicates eb97c3a7ad1ae973515c65a981fe2c556315639d
M: 46b4e50abb2dc8e14467303a59ddfa7b9a294dfe 192.168.199.12:6379
   slots:[10923-16383] (5461 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.

查看集群状态

/data/redis/bin/redis-cli -c -h 192.168.199.10 -p 6379

192.168.199.10:6379> cluster nodes
15987d9aa5452baeb197d31d0b28cf10403e1fc4 192.168.199.10:6379@16379 myself,master - 0 1610613629000 1 connected 0-5460
db11544f435938e6f506595f0a94e6248e7a3787 192.168.199.11:6380@16380 slave 15987d9aa5452baeb197d31d0b28cf10403e1fc4 0 1610613631000 1 connected
eb97c3a7ad1ae973515c65a981fe2c556315639d 192.168.199.11:6379@16379 master - 0 1610613632028 3 connected 5461-10922
76d44a73239971ab902effd30e11a2b0c108658d 192.168.199.10:6380@16380 slave 46b4e50abb2dc8e14467303a59ddfa7b9a294dfe 0 1610613632000 5 connected
a901eb8204b607f45c0c5d521fef422e5a60caa4 192.168.199.12:6380@16380 slave eb97c3a7ad1ae973515c65a981fe2c556315639d 0 1610613631000 3 connected
46b4e50abb2dc8e14467303a59ddfa7b9a294dfe 192.168.199.12:6379@16379 master - 0 1610613631020 5 connected 10923-16383

192.168.199.10:6379> cluster info

# 显示ok集群状态为正常
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:248
cluster_stats_messages_pong_sent:236
cluster_stats_messages_sent:484
cluster_stats_messages_ping_received:231
cluster_stats_messages_pong_received:248
cluster_stats_messages_meet_received:5
cluster_stats_messages_received:484

集群重启

# 停止
sh -x /data/stop_redis.sh
# 启动
sh -x /data/start_redis.sh
# 查看集群状态
/data/redis/bin/redis-cli -c -h 192.168.199.10 -p 6379
192.168.199.10:6379> cluster nodes
192.168.199.10:6379> cluster info