Mysql实现主从复制（环境搭建）
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下载mysql镜像
docker pull mysql:5.7
创建Mysql实例并启动
通过下面命令创建两个mysql，master、slave
docker run -p 3310:3306 \\
--name mysql --restart always \\
-v /usr/local/mysql/log:/var/log/mysql \\
-v /usr/local/mysql/data:/var/lib/mysql \\
-v /usr/local/mysql/conf:/etc/mysql \\
-e MYSQL_ROOT_PASSWORD=MASTER2021@mysql.com \\
-d mysql:5.7
Master添加配置
vi /usr/local/mysql/conf/my.cnf
[client]
default-character-set=utf8
[mysql]
default-character-set=utf8
[mysqld]
init_connect='SET collation_connection=utf8_unicode_ci'
init_connect='SET NAMES utf8'
character-set-server=utf8
collation-server=utf8_unicode_ci
skip-character-set-client-handshake
skip-name-resolve
server_id=10
log-bin=mysql-bin
read-only=0
binlog-do-db=test
replicate-ignore-db=mysql
replicate-ignore-db=sys
replicate-ignore-db=information_schema
replicate-ignore-db=performance_schema
授权用户来同步数据
1.进入mysql容器
docker exec -it mysql bash
2.进入mysql内部（mysql -u root -p）
1）、添加用来同步的用户
create user 'slave'@'%' identified by 'SLAVE2021@mysql.com';
grant replication slave on *.* to 'slave'@'%';
2)、添加远程访问
create user 'test'@'%' identified by 'test@test.com';
grant all privileges on *.* to 'test'@'%';
3.查看master状态
show master status;
slave同步数据
change master to master_host='192.168.111.200',master_user='slave',master_password='SLAVE2021@mysql.com',master_log_file='mysql-bin.000002',master_log_pos=0,master_port=3406;
start slave;
show slave status;
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