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docker_cluster_mysql

docker实现mysql数据库集群 Mysql一主多从配置

环境: centos 7.0 tomcat 5.7

  1. 安装docker 安装必要的一些系统工具 sudo yum install -y yum-utils device-mapper-persistent-data lvm2 添加软件源信息 sudo yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo 更新并安装 Docker-CE sudo yum makecache fast sudo yum install epel-release sudo yum -y install docker-ce 开启Docker服务 sudo service docker start 设置docker存放路径 vi /usr/lib/systemd/system/docker.service
    ExecStart=/usr/bin/dockerd --graph /new-path/docker //添加新存放路径(挂盘) systemctl daemon-reload // reload配置文件 systemctl restart docker.service // 重启docker docker ps //测试 是否启动

  2. 主从库配置: 解压文件docker_mysql.zip到主从路径/usr/local/docker 路径格式:/usr/local/docker/slave2_docker_config 生成主mysql服务器: docker run --name tp_mysql_master -e MYSQL_ROOT_PASSWORD=111 -v /etc/localtime:/etc/localtime:ro -v /usr/local/docker/master_docker_config:/etc/mysql/mysql.conf.d -p 3320:3306 mysql:5.7 *报错执行 docker rm tp_mysql_master; 主库复制权限授权:

CREATE USER 'slave1'@'ip' IDENTIFIED BY 'slave1';//此处需要换成内网ip GRANT REPLICATION SLAVE, REPLICATION CLIENT ON . TO 'slave1'@'ip'; FLUSH PRIVILEGES; 查询主库的file和size SHOW MASTER STATUS;//后面需要根据此来做同步

生成多从mysql服务器 slave2启动 docker run --name tp_mysql_slave_2 -e MYSQL_ROOT_PASSWORD=xxx -v /etc/localtime:/etc/localtime:ro -v /usr/local/docker/slave2_docker_config:/etc/mysql/mysql.conf.d -p 3323:3306 mysql:5.7 slave1启动 docker run --name tp_mysql_slave_1 -e MYSQL_ROOT_PASSWORD=XXX -v /etc/localtime:/etc/localtime:ro -v /usr/local/docker/slave_docker_config:/etc/mysql/mysql.conf.d -p 3322:3306 mysql:5.7 //端口不能重复

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