Redis cluster configuration

目录

1、Create two bridge virtual machine instance

1.1 Modify the bridge network

1.2 Modify the local network configuration file

1.3 测试

2、配置redis集群

2.1 安装redis

2.1.1.安装依赖

 2.1.2 下载redis安装包上传服务器并解压

2.1.3 解压文件

2.1.4 编译文件 

2.1.5 Specify the installation directory and install 

2.1.6 修改配置

2.1.7 启动服务

2.1.8 防火墙

2.2 配置redis集群

2.2.1 修改配置文件

2.2.2 Open the two bridge virtual machine

 2.2.3 开启集群

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1、Create two bridge virtual machine instance

1.1 Modify the bridge network

1.2 Modify the local network configuration file

viPattern edit the file

vi /etc/sysconfig/network-scripts/ifcfg-ens33

 内容:

TYPE="Ethernet"
BOOTPROTO="static"#修改为static
DEFROUTE="yes"
PEERDNS="yes"
PEERROUTES="yes"
IPV4_FAILURE_FATAL="no"
IPV6INIT="yes"
IPV6_AUTOCONF="yes"
IPV6_DEFROUTE="yes"
IPV6_PEERDNS="yes"
IPV6_PEERROUTES="yes"
IPV6_FAILURE_FATAL="no"
IPV6_ADDR_GEN_MODE="stable-privacy"
NAME="ens33"
UUID="dc066b37-0113-45bb-aac0-04748211c9a7"
DEVICE="ens33"
ONBOOT="yes" #修改为yes
IPADDR=192.168.1.70 #修改本地Ip网段下ip 不能与本地ip相同
GATEWAY=192.168.1.1#Modified for the local gateway
NETMASK=255.255.255.0#Is modified to the local subnet mask

1.3 测试

互相ping下看是否能ping通

2、配置redis集群

2.1 安装redis

2.1.1.安装依赖

redis是由C语言开发,Therefore need to make sure that the server has been installed before installationgcc,Can be installed through the following command to check the server whether：

gcc -v

If not installed using the following command to install：

yum install -y gcc

 2.1.2 下载redis安装包上传服务器并解压

# 命令下载,So I download directory for：/usr/local/redis,According to own actual situation to adjust here
wget https://download.redis.io/releases/redis-6.2.6.tar.gz

2.1.3 解压文件

#进入到文件目录
cd /usr/local/redis
# 解压
tar -zxvf redis-6.2.6.tar.gz

2.1.4 编译文件 

# Enter the unzipped directory
cd /usr/local/redis/redis-6.2.6
# 编译
make

2.1.5 Specify the installation directory and install 

make install PREFIX=/usr/local/redis

2.1.6 修改配置

port 8081 #修改默认端口号

daemonize yes #To the daemon startup services

protected-mode yes #关闭保护模式

bind 0.0.0.0 -::1 #允许任何ip访问

2.1.7 启动服务

进入到安装目录中

 redis-server redis.conf

 设置开机自启

cd /lib/systemd/system/
# 新建文件
vim redis.service

[Unit]
Description=redis-server
After=network.target

[Service]
Type=forking
# ExecStartNeed according to the actual situation changes into its own address
ExecStart=/usr/local/redis/bin/redis-server /usr/local/redis/bin/redis.conf
PrivateTmp=true

[Install]
WantedBy=multi-user.target

# 开机自动启动
systemctl enable redis.service
# 启动redis服务
systemctl start redis.service
# 查看服务状态
systemctl status redis.service
# 停止服务
systemctl stop redis.service
# 取消开机自动启动(卸载服务)
systemctl disabled redis.service

2.1.8 防火墙

Add custom port

firewall-cmd --add-port=端口/tcp --zone=public --permanent #永久添加

systemctl restart firewalld #重启防火墙

2.2 配置redis集群

2.2.1 修改配置文件

 cluster-enabled yes #开启集群模式

 cluster-config-file nodes-8004.conf#修改配置文件名

appendonly yes#开启AOF快照模式

appendfilename "appendonly8004.aof"#修改配置文件名

2.2.2 Open the two bridge virtual machine

把redis.configAccording to the above configuration copy out6Copy of the open6个redis服务 Achieve a master from mode

编写启动脚本

./redis-server redis8003.conf
./redis-server redis8004.conf
./redis-server redis8005.conf

启动脚本

./start.sh

 2.2.3 开启集群

1代表开启3个主节点 Each one from node

 ./redis-cli   --cluster create 192.168.1.70:8003 192.168.1.70:8004 192.168.1.70:8005 192.168.1.71:8001 192.168.1.71:8002 192.168.1.71:8006 --cluster-replicas 1

连接节点

redis-cli -c -p 端口

放行端口

放行8003,8004.....A port on the original release of 在放行18003,18004.......

Cluster mode commonly used commands

1. 查看redis是否是集群模式,info cluster 命令

2. 查看集群的所有节点信息,cluster nodes 命令

3. 查看集群中各个节点的slot区间,cluster slots 命令

4. 查看指定key所在slot的值,cluster keyslot key 命令