MySQL主从同步部署

mysql主从同步部署： master:192.168.2.67slave:192.168.2.211同步系统非默认库,master中其它库已经运行一段时间。 master端：vim /etc/my.cnfserver-id = 1 master端ID号log-bin=/data/logbin/mysql-bin 日志路径及文件名#binlog-do-db = debit 同步debit，此处关闭的话，就是除不允许的，其它的库均同步。binlog-ignore-db = mysql 不同步mysql库，以下同上binlog-ignore-db = testbinlog-ignore-db = information_schema /usr/local/mysql/bin/mysql -uroot -pmysql>grant replication slave on *.* to rsync@'192.168.2.211' identified by '123456';mysql>flush privileges;mysql>flush tables with read lock;mysql>show master status;此处主要记录下file和position的值，slave端要使用到。如下File | Position |+------------------+----------| mysql-bin.000047 | 391592414
另外一个窗口运行下面的：tar -czf /data/mysql/debit.tgz /data/mysql/debitscp /data/mysql/debit.tgz root@192.168.2.211/data/mysql/debit.tgz完成后返回前一个窗口解锁数据库只读。mysql>unlock tables; slave端：vim /etc/my.cnfserver-id = 2 slave的ID号，此处一定要大于master端。保存退出。 /usr/local/mysql/bin/mysqladmin -uroot -p shutdowntar xvzf /data/mysql/debit.tgz /data/mysql/debitchown -R mysql.mysql /data/mysql/debit/usr/local/mysql/bin/mysql -uroot -pmysql>stop slave;mysql>change master to >master_host='192.168.2.67', >master_user='rsync', master端创建的用于主从同步的账户和密码 >master_password='123456', >master_port='3306', master端设置的client端使用的端口号。 >master_log_file='mysql-bin.000047', master端记录的file值 >master_log_pos=391592414; master端记录的position值mysql>start slave;mysql>show slave status \G*************************** 1. row *************************** Slave_IO_State: Waiting for master to send event Master_Host: 192.168.2.67 Master_User: rsync Master_Port: 3306 Connect_Retry: 30 Master_Log_File: mysql-bin.000047 Read_Master_Log_Pos: 413641446 Relay_Log_File: backter-relay-bin.000002 Relay_Log_Pos: 13433937 Relay_Master_Log_File: mysql-bin.000047 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: 405026116 Relay_Log_Space: 22049267 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: 1481 row in set (0.00 sec) 查看上面的Slave_IO_Running: Yes 和Slave_SQL_Running: Yes 2个都为yes则证明主从同步正常，如果有任一个显示NO,则证明同步有问题。可以查看数据库日志文件，里面基本上会显示出错误之处，根据错误一步一步排查，基本上都可以解决的。