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redis/redis-3.0.3,哨兵集群.md

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+## redis-v3.0.3哨兵集群搭建文档
+
+
+
+### 准备工作
+
+### 主机
+
+准备三台全新 centos linux 服务器 
+
+固定IP 
+
+```
+192.168.1.11 
+192.168.1.12
+192.168.1.13
+```
+
+**以下命令如无特殊说明 在三台主机中均要执行**
+
+准备环境 
+
+```bash
+yum install make gcc wget
+```
+
+创建用户 
+
+```bash
+useradd  redis
+```
+
+创建相关目录
+
+```bash
+mkdir -p /opt/{app/redis,applog}
+```
+
+授权
+
+```bash
+chown -R redis:redis /opt/app/redis/
+```
+
+```bash
+chown -R redis:redis /opt/applog/redis/
+```
+
+
+
+#### 编译源码
+
+切换用户
+
+```bash
+su - redis
+```
+
+下载源码
+
+```bash
+cd /opt/app/redis/
+wget https://download.redis.io/releases/redis-3.0.3.tar.gz
+```
+
+
+
+解压源码
+
+```bash
+tar -zxvf redis-3.0.3.tar.gz
+```
+
+
+
+编译源码 这里为了和生产一致 使用libc 内存分配器
+
+```bash
+cd redis-3.0.3
+make MALLOC=libc
+```
+
+安装
+
+```bash
+make PREFIX=/opt/app/redis/ install
+```
+
+
+
+配置 path
+
+```bash
+echo 'export PATH=$PATH:/opt/app/redis/bin' >> ~/.bashrc
+
+source ~/.bashrc
+```
+
+
+
+### 配置redis
+
+复制配置文件
+
+```bash
+cp /opt/app/redis/redis-3.0.3/src/redis.conf /opt/app/redis/
+
+cp /opt/app/redis/redis-3.0.3/src/sentinel.conf /opt/app/redis/
+```
+
+编辑配置文件 redis.conf 
+
+```bash
+sed -i 's/daemonize no/daemonize yes/g' redis.conf
+
+sed -i 's|^logfile ""$|logfile "/opt/applog/redis/redis.log"|g' redis.conf
+
+sed -i 's|^dir "./"$|dir "/opt/app/redis/"|g' redis.conf
+
+sed -i 's/appendonly no/appendonly yes/g' redis.conf
+
+sed -i 's/^# cluster-node-timeout 15000$/cluster-node-timeout 5000/g' redis.conf
+#设置主从复制密码
+sed -i 's/^# masterauth <master-password>$/masterauth dUw~7a)6/g' redis.conf
+#设置 节点密码
+sed -i 's/^# requirepass foobared$/requirepass dUw~7a)6/g' redis.conf
+```
+
+
+
+配置主从节点
+
+在 192.168.1.12，192.168.1.13 两台机子中执行
+
+```bash
+echo "slaveof 10.23.101.3 6379" >> redis.conf
+```
+
+
+
+编辑配置文件 sentinel.conf 
+
+```bash
+sed -i 's|^\(sentinel monitor mymaster\) 127.0.0.1|\1 181.168.1.11|' sentinel.conf
+
+#设置哨兵密码
+sed -i 's/^#sentinel auth-pass <master-name> <password>/sentinel auth-pass mymaster HmpYZ2KB/g' sentinel.conf
+
+echo "daemonize yes" >> sentinel.conf
+
+```
+
+
+
+
+
+编写动脚本
+
+```bash
+echo "bin/redis-server redis.config">/opt/app/redis/start.sh
+chmod 775 start.sh
+
+echo "bin/redis-sentinel sentinel.config">/opt/app/redis/start-sentinel.sh
+chmod 775 start.sh
+```
+
+指定用户启动
+
+```bash
+#!/bin/bash
+su -s /bin/bash -c "$(pwd)/bin/redis-sentinel $(pwd)/sentinel.conf " redis
+```
+
+
+
+### 启动
+
+先启动三个redis节点
+
+```bash
+bash start.sh
+```
+
+再启动 sentinel j节点
+
+```bash
+bash start-sentinel.sh
+```
+
+
+
+### 验证
+
+登录三个redis节点 分别写入key
+
+192.168.1.11  成功写入  并同步至 192.168.1.12，192.168.1.13
+192.168.1.12	写入失败
+192.168.1.13	写入失败
+
+
+
+登录哨兵节点 查看哨兵信息
+
+```bash
+redis-cli  -p 26379
+
+sentinel sentinels mymaster
+```
+
+
+
+杀死 主节点
+
+分别查看 另外两台redis 的info 信息 是否发生切换