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一、环境
mysql-m:192.168.3.61
mysql-s:192.168.3.62
二、配置
查看mysql-m的server-id和log-bin
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| [iyunv@mysql-m ~]# egrep "server-id|log-bin" /etc/my.cnf
server-id = 1
log-bin=mysql-bin
[iyunv@mysql-m ~]# ll /data/mysql/data/
total 28700
-rw-rw---- 1 mysql mysql 18874368 May 18 11:00 ibdata1
-rw-rw---- 1 mysql mysql 5242880 May 18 11:00 ib_logfile0
-rw-rw---- 1 mysql mysql 5242880 May 18 10:39 ib_logfile1
drwx------ 2 mysql root 4096 May 18 10:39 mysql
-rw-rw---- 1 mysql mysql 107 May 18 11:00 mysql-bin.000001
-rw-rw---- 1 mysql mysql 19 May 18 11:00 mysql-bin.index
-rw-r----- 1 mysql root 3369 May 18 11:00 mysql-m.err
-rw-rw---- 1 mysql mysql 6 May 18 11:00 mysql-m.pid
srwxrwxrwx 1 mysql mysql 0 May 18 11:00 mysql.sock
drwx------ 2 mysql mysql 4096 May 18 10:39 performance_schema
drwx------ 2 mysql root 4096 May 18 10:39 test
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查看mysql-s的server-id,确保和mysql-m的不一致
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| [iyunv@mysql-s ~]# grep server-id /etc/my.cnf
server-id = 2
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三、创建主从复制用的账号,并授权
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| mysql> grant replication slave on *.* to 'rep'@'192.168.3.62' identified by '123456';
Query OK, 0 rows affected (0.01 sec)
mysql> flush privileges;
Query OK, 0 rows affected (0.01 sec)
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四、配置主从
在master查看二进制日志和position信息
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| [iyunv@mysql-m ~]# mysql -u root -plyao36843 -h 127.0.0.1 -e 'show master status;'
+------------------+----------+--------------+------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB |
+------------------+----------+--------------+------------------+
| mysql-bin.000005 | 107 | | |
+------------------+----------+--------------+------------------+
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在mysql-s上配置同步信息
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| mysql> system hostname
mysql-s
mysql> change master to master_host='192.168.3.61',master_user='rep',master_password='123456',master_log_file='mysql-bin.000005',master_log_pos=107;
Query OK, 0 rows affected (0.03 sec)
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启动slave复制
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| 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: 192.168.3.61 #master的IP地址
Master_User: rep #同步用的账号
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000005 #同步的二进制文件
Read_Master_Log_Pos: 107 #同步的position点
Relay_Log_File: mysql-s-relay-bin.000002
Relay_Log_Pos: 253
Relay_Master_Log_File: mysql-bin.000005
Slave_IO_Running: Yes #主从同步的IO线程
Slave_SQL_Running: Yes #主从同步的SQL线程
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: 107
Relay_Log_Space: 411
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:
Replicate_Ignore_Server_Ids:
Master_Server_Id: 1
1 row in set (0.00 sec)
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测试,在主库创建一个数据库linux
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| [iyunv@mysql-m ~]# mysql -u root -plyao36843 -h 127.0.0.1 -e 'create database linux;'
[iyunv@mysql-m ~]# mysql -u root -plyao36843 -h 127.0.0.1 -e 'show databases;'
+--------------------+
| Database |
+--------------------+
| information_schema |
| git |
| linux |
| mysql |
| performance_schema |
| test |
+--------------------+
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从库验证结果
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| mysql> system hostname
mysql-s
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| linux |
| mysql |
| performance_schema |
| test |
+--------------------+
5 rows in set (0.00 sec)
#从结果能看到在master上创建的linux库,已同步到slave上
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在生产中我们应该讲master的数据导入到从库后,再启动slave同步
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