配置Mysql主從服務實現(xiàn)實例

### 配置主數(shù)據(jù)庫  my.cnf

server-id=1 log-bin=master-bin log-bin-index=master-bin.index

### 在主數(shù)據(jù)庫上創(chuàng)建同步賬號

create user backup; GRANT REPLICATION SLAVE ON *.* TO 'backup'@'192.168.%.%' IDENTIFIED BY 'mysql';

### 配置從數(shù)據(jù)庫  my.cnf

server-id=2 relay-log-index=slave-relay-bin.index relay- log=slave-relay-bin

### 重啟mysql服務

service mysqld restart

### 連接Master服務

change master to master_host='192.168.91.128', master_port=3306,master_user='backup',master_password='mysql', master_log_file='master-bin.000001',master_log_pos=0;

### 啟動slave服務

start slave;

### 查看Master服務狀態(tài)

SHOW MASTER STATUS;

### 查看Slave服務狀態(tài)

SHOW slave STATUS \G;

### 檢查server_id是否一樣,需要不一樣

show variables like 'server_id';

常見錯誤

錯誤: Fatal error: The slave I/O thread stops because master and slave have equal MySQL server UUIDs; these UUIDs must be different for replication to work.

解決方式: 檢查data目錄中的auto.cnf中的server-uuid=******************** 是否一樣的,要改為不一樣