1、创建 实例并启动
mysql-master:
image: mysql:8.0
container_name: mysql-master
environment:
时区上海
TZ: Asia/Shanghai
root 密码
MYSQL_ROOT_PASSWORD: cad2024
ports:
- "3316:3306"
volumes:
数据挂载
- /docker/mysql_master/data/:/var/lib/mysql/
配置挂载
- /docker/mysql_master/conf/:/etc/mysql/conf.d/
command:
将mysql8.0默认密码策略 修改为 原先 策略 (mysql8.0对其默认策略做了更改 会导致密码无法匹配)
--default-authentication-plugin=mysql_native_password
--character-set-server=utf8mb4
--collation-server=utf8mb4_general_ci
--explicit_defaults_for_timestamp=true
--lower_case_table_names=1
privileged: true
restart: always
mysql-slave:
image: mysql:8.0
container_name: mysql-slave
environment:
时区上海
TZ: Asia/Shanghai
root 密码
MYSQL_ROOT_PASSWORD: cad2024
ports:
- "3326:3306"
volumes:
数据挂载
- /docker/mysql-slave/data/:/var/lib/mysql/
配置挂载
- /docker/mysql-slave/conf/:/etc/mysql/conf.d/
command:
将mysql8.0默认密码策略 修改为 原先 策略 (mysql8.0对其默认策略做了更改 会导致密码无法匹配)
--default-authentication-plugin=mysql_native_password
--character-set-server=utf8mb4
--collation-server=utf8mb4_general_ci
--explicit_defaults_for_timestamp=true
--lower_case_table_names=1
privileged: true
restart: always
2、修改 master 基本配置
vim /docker /mysql_master /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
#注意：skip-name-resolve 一定要加，不然连接 mysql 会超级慢
#唯一id
server_id=1
#复制是通过二进制日志操作增删改，并记录执行到那个位置
log-bin=mysql-bin
#不止读
read-only=0
#需要备份的数据库模式
binlog-do-db=gulimall_ums
binlog-do-db=gulimall_pms
binlog-do-db=gulimall_oms
binlog-do-db=gulimall_sms
binlog-do-db=gulimall_wms
binlog-do-db=gulimall_admin
#不需要备份的数据库
replicate-ignore-db=mysql
replicate-ignore-db=sys
replicate-ignore-db=information_schema
replicate-ignore-db=performance_schema
3、修改 slave 基本配置
vim /docker /mysql_ slave /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=2
log-bin=mysql-bin
#只读
read-only=1
binlog-do-db=gulimall_ums
binlog-do-db=gulimall_pms
binlog-do-db=gulimall_oms
binlog-do-db=gulimall_sms
binlog-do-db=gulimall_wms
binlog-do-db=gulimall_admin
replicate-ignore-db=mysql
replicate-ignore-db=sys
replicate-ignore-db=information_schema
replicate-ignore-db=performance_schema
4、 为 master 授权用户来他的同步数据
#给backup用户可以访问mysql并进行日志复制
CREATE USER 'backup'@'%' IDENTIFIED WITH mysql_native_password BY '123456';
GRANT REPLICATION SLAVE ON *.* TO 'backup'@'%';
#查看 master 状态
show master status;
5、配置 slaver 同步 master 数据
1）、告诉从mysql需要同步那个主节点
change master to
master_host='117.50.198.127 '
,master_user='backup'
,master_password='123456 '
,mas ter_log_file='mysql-bin.000001'
,master_log_pos=0
,master_port=3316;
2）、启动从库同步
start slave;
3）、查看从库状态
show slave status;