主服务器 (mysql-master) 47.74.132.151 已安装mysql (内无数据)
从服务器 (mysql-slave) 47.92.107.42 已安装mysql (内无数据)
一 开始配置 主服务器 47.74.132.151
1.配置之前先查看/etc/my.cnf
[mysqld]
log-bin=mysql-bin 启动二进制文件
server-id=1 服务器ID
重启mysql (service mysqld start)
2.登录mysql，在mysql中添加一个backup的账号，并授权给从服务器。
mysql -uroot -p
mysql>grant replication slave on *.* to 'backup'@'192.168.48.130' identified by 'backup'; 创建backup用户，并授权给192.168.48.130使用。
Query OK, 0 rows affected (0.00 sec)
mysql> show master status;
+------------------+----------+--------------+------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB |
+------------------+----------+--------------+------------------+
| mysql-bin.000001 | 261 | | |
+------------------+----------+--------------+------------------+
1 row in set (0.00 sec)
二 开始配置从服务器 47.92.107.42
确保/etc/my.cnf中有log-bin=mysql-bin和server-id=1参数，并把server-id=1修改为server-id=10。修改之后如下所示：
[mysqld]
log-bin=mysql-bin 启动二进制文件
server-id=10 服务器ID
重启mysql (service mysqld start)
mysql -uroot -p
change master to master_host='47.74.132.151',master_user='backup',master_password='backup',master_log_file='mysql-bin.000001',master_log_pos=261;
Query OK, 0 rows affected (0.01 sec)
mysql> start slave;
Query OK, 0 rows affected (0.00 sec)
mysql> show slave status\G
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 47.74.132.151
Master_User: backup
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000001
Read_Master_Log_Pos: 261
Relay_Log_File: mysqld-relay-bin.000002
Relay_Log_Pos: 251
Relay_Master_Log_File: mysql-bin.000001
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
Replicate_Do_DB:
Replicate_Ignore_DB:
Replicate_Do_Table:
Replicate_Ignore_Table:
Replicate_Wild_Do_Table:
Replicate_Wild_Ignore_Table:
Last_Errno: 0
Last_Error:
Skip_Counter: 0
Exec_Master_Log_Pos: 261
Relay_Log_Space: 407
Until_Condition: None
Until_Log_File:
Until_Log_Pos: 0
Master_SSL_Allowed: No
Master_SSL_CA_File:
Master_SSL_CA_Path:
Master_SSL_Cert:
Master_SSL_Cipher:
Master_SSL_Key:
Seconds_Behind_Master: 0
Master_SSL_Verify_Server_Cert: No
Last_IO_Errno: 0
Last_IO_Error:
Last_SQL_Errno: 0
Last_SQL_Error:
1 row in set (0.00 sec)
检查主从同步，如果您看到Slave_IO_Running和Slave_SQL_Running均为Yes，则主从复制连接正常
三 开始验证
在主数据库上进行插入数据
mysql> create database mysqltest;
mysql> use mysqltest;
mysql> create table user(id int(5),name char(10));
mysql> insert into user values (00001,'zhangsan');
登录从数据库查看此数据是否存在
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| mysqltest |
+--------------------+
3 rows in set (0.00 sec)
use mysqltest
mysql> select * from user;
+------+----------+
| id | name |
+------+----------+
| 1 | zhangsan |
复制成功
注释下自己配置的时候遇到的问题 Slave_IO_Running 一直为NO 自己的原因是通信不行 服务器安全组配置没有配置好导致的通信失败