docker mysql 主從
阿新 • • 發佈:2018-12-08
下載mysql
docker pull mysql:5.7
啟動 mysql-master 和 mysql-slave
// mysql-master docker run \ --name mysql-master \ --privileged=true \ -v /home/dev-soft/mysql/master/:/etc/mysql/conf.d \ -v /home/dev-soft/mysql/master/master-data:/var/lib/mysql \ -p 23306:3306 \ -e MYSQL_ROOT_PASSWORD=root \ -d docker.io/mysql:5.7 // mysql-slave docker run \ --name mysql-slave \ --privileged=true \ -v /home/dev-soft/mysql/slave:/etc/mysql/conf.d \ -v /home/dev-soft/mysql/slave/slave-data:/var/lib/mysql \ -p 23307:3306 --link mysql-master:master \ -e MYSQL_ROOT_PASSWORD=root \ -d docker.io/mysql:5.7
在 mysql-master 上 建立使用者並授權
docker exec -it mysql-master /bin/bash
mysql -uroot -proot
grant replication slave on *.* to 'test'@'%' identified by '123456';
flush privileges;
// 檢視主的狀態
show master status;
在 mysql-slave 上並配置 slave
docker exec -it mysql-slave /bin/bash mysql -uroot -proot change master to master_host='master', master_user='root', master_password='root',master_port=3306, master_log_file='mysql-bin.000003', master_log_pos=1024, master_connect_retry=30; // 停止從庫 stop slave; // 啟用從庫 start slave; // 檢視從的狀態 show slave status\G //結果如下: mysql> show slave status\G *************************** 1. row *************************** Slave_IO_State: Waiting for master to send event Master_Host: master Master_User: root Master_Port: 3306 Connect_Retry: 30 Master_Log_File: mysql-bin.000003 Read_Master_Log_Pos: 1024 Relay_Log_File: 2639c6f2da5b-relay-bin.000002 Relay_Log_Pos: 320 Relay_Master_Log_File: mysql-bin.000003 Slave_IO_Running: Yes Slave_SQL_Running: Yes
mysql 相關配置如下
//建立 master-data 目錄
/home/dev-soft/mysql/master/master-data
//master: /home/dev-soft/mysql/master/master.cnf
[[email protected] master]# cat master.cnf
[mysqld]
##################基礎設定##################
pid-file = /var/run/mysqld/mysqld.pid
socket = /var/run/mysqld/mysqld.sock
datadir = /var/lib/mysql
#log-error = /var/log/mysql/error.log
# By default we only accept connections from localhost
#bind-address = 127.0.0.1
skip-host-cache
skip-name-resolve
#Mysql服務的唯一編號 每個mysql服務Id需唯一
server-id=1
#資料庫預設字符集,主流字符集支援一些特殊表情符號(特殊表情符佔用4個位元組)
character-set-server = utf8mb4
#資料庫字符集對應一些排序等規則,注意要和character-set-server對應
collation-server = utf8mb4_general_ci
#設定client連線mysql時的字符集,防止亂碼
init_connect=‘SET NAMES utf8mb4‘
#是否對sql語句大小寫敏感,1表示不敏感
lower_case_table_names = 1
##################主從複製設定##################
#開啟mysql binlog功能
log-bin=/var/log/mysql/mysql-bin.index
# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0
//建立 slave-data 目錄
/home/dev-soft/mysql/slave/slave-data
// slave 配置:/home/dev-soft/mysql/slave/slave.cnf
[ [email protected] slave]# cat slave.cnf
[mysqld]
##################基礎設定##################
pid-file = /var/run/mysqld/mysqld.pid
socket = /var/run/mysqld/mysqld.sock
datadir = /var/lib/mysql
#log-error = /var/log/mysql/error.log
# By default we only accept connections from localhost
#bind-address = 127.0.0.1
skip-host-cache
skip-name-resolve
#Mysql服務的唯一編號 每個mysql服務Id需唯一
server-id=2
#資料庫預設字符集,主流字符集支援一些特殊表情符號(特殊表情符佔用4個位元組)
character-set-server = utf8mb4
#資料庫字符集對應一些排序等規則,注意要和character-set-server對應
collation-server = utf8mb4_general_ci
#設定client連線mysql時的字符集,防止亂碼
init_connect=‘SET NAMES utf8mb4‘
#是否對sql語句大小寫敏感,1表示不敏感
lower_case_table_names = 1
##################主從複製設定##################
#開啟mysql binlog功能
log-bin=/var/log/mysql/mysql-bin.index
# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0