redis5.0 Cluster集群搭建

1. 安装redis

   sudo apt update
   sudo apt install build-essential tcl
   cd ~
   mkdir document/
   cd document/
   curl -O http://download.redis.io/redis-stable.tar.gz
   tar zxvf redis-stable.tar.gz
   cd redis-stable/
   make
   make test
   sudo make install
   cp ~/document/redis-stable/src/redis-trib.rb /usr/local/bin
   

2. 开始集群搭建

   1. 修改配置文件

      # 设置配置文件目录
      sudo mkdir -p /etc/redis/redis-cluster/7000
      cd /etc/redis/
      # 创建一份配置文件，Cluster架构-3主3从
      sudo cp redis.conf redis-cluster/7000/redis.conf
      # 修改配置文件
      sudo vim redis-cluster/7000/redis.conf
      

      配置文件修改如下部分

      daemonize    yes  # redis后台运行
      pidfile  /var/run/redis_7000.pid  #需要修改为 reids_{port}.pid 的形式
      port  7000  #端口
      cluster-enabled  yes #开启集群
      cluster-config-file  7000/nodes_7000.conf #集群的配置文件 nodes_{port}.conf的形式
      cluster-node-timeout  5000 #超时时间 5s够了
      appendonly  yes #开启AOF日志
      

      将配置文件复制5份，并修改每份文件的端口号

      # 创建5份配置文件路径
      sudo mkdir -p /etc/redis/redis-cluster/7001
      sudo mkdir -p /etc/redis/redis-cluster/7002
      sudo mkdir -p /etc/redis/redis-cluster/7003
      sudo mkdir -p /etc/redis/redis-cluster/7004
      sudo mkdir -p /etc/redis/redis-cluster/7005
      # 复制5份配置文件
      cd /etc/redis/
      sudo cp redis-cluster/7000/redis.conf redis-cluster/7001/
      sudo cp redis-cluster/7000/redis.conf redis-cluster/7002/
      sudo cp redis-cluster/7000/redis.conf redis-cluster/7003/
      sudo cp redis-cluster/7000/redis.conf redis-cluster/7004/
      sudo cp redis-cluster/7000/redis.conf redis-cluster/7005/
      # 修改端口号
      sudo sed -i "s/7000/7001/g" /etc/redis/redis-cluster/7001/redis.conf
      sudo sed -i "s/7000/7002/g" /etc/redis/redis-cluster/7002/redis.conf
      sudo sed -i "s/7000/7003/g" /etc/redis/redis-cluster/7003/redis.conf
      sudo sed -i "s/7000/7004/g" /etc/redis/redis-cluster/7004/redis.conf
      sudo sed -i "s/7000/7005/g" /etc/redis/redis-cluster/7005/redis.conf
      

   2. 启动Redis

      cd /etc/redis/redis-cluster/
      sudo redis-server 7000/redis.conf
      sudo redis-server 7001/redis.conf
      sudo redis-server 7002/redis.conf
      sudo redis-server 7003/redis.conf
      sudo redis-server 7004/redis.conf
      sudo redis-server 7005/redis.conf
      

   3. 创建集群

      sudo redis-cli --cluster create 127.0.0.1:7000 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 --cluster-replicas 1
      # 等一会 然后输入
      yes
      

   4. 检查集群状态

      redis-cli --cluster check 127.0.0.1:7000  #填写任意节点即可 会带出所有的
      

3. 连接redis集群

   redis-cli -c -h 127.0.0.1 -p 7000
   127.0.0.1:7000> set hi redis
   -> Redirected to slot [16140] located at 127.0.0.1:7002
   OK
   127.0.0.1:7002> get hi
   "redis"