2008-11
25
哈，原来手里有一份教程， 每次做同步都照做，一直很顺利。这次很久没做同步了，竟然不会了。折腾了好久，特地做个笔记。
- Mysql 同步笔记
- 1.a为主，b为从.
- a的ip:10.62.240.128
- b的ip:10.62.240.126
- a,b 两台机器均装好Mysql,同时确保配置文件中
- character_set_server = utf8
- collation_server = utf8_unicode_ci
- 两台机器的设置相同。
- 2.在主(a)上配置:
- [/etc/my.cnf]中mysqld域新增:
- log-bin
- server-id = 1
- sql-bin-update-same
- binlog-do-db = database_name
- 3.在从机器中配置:
- master-host=10.62.240.128 #a的ip
- master-user=replication
- master-password=replication
- master-port=3306
- server-id=2
- master-connect-retry=60
- replicate-do-db=database_name
- log-slave-updates
- 4.授权:在a上面进入mysql:
- GRANT REPLICATION SLAVE ON *.* TO 'replication'@'10.62.240.126' IDENTIFIED BY 'replication';
- flush privileges;
- 5.锁定a:
- mysql> use database_name;
- mysql>FLUSH TABLES WITH READ LOCK; #锁定要同步的test表，然后导出数据结构
- mysql>show master status;#记录这里的结果。记录如下:
- mysqld-bin.000003 | 1399444 | reping |
- mysqldump database_name > dump.sql
- mysql> UNLOCK TABLES; #已做好同步数据库结构导出后，解锁这个表
- 6.在b(从)中载入sql:
- mysql -uroot < dump.sql
- 7:在b中对replication位置进行设定:
- mysql>change master to master_host='10.62.240.128', master_port=3306, master_user='replication',master_password='replication',master_log_file='mysqld-bin.000003', MASTER_LOG_POS=1399444;
- mysql>start slave;#启动复制服务
- 8:检查主和从之间的同步是否已经跟上:
- 在a中运行mysql>show master status;
- mysql> show master status;
- +-------------------+----------+--------------+------------------+
- | File | Position | Binlog_Do_DB | Binlog_Ignore_DB |
- +-------------------+----------+--------------+------------------+
- | mysqld-bin.000003 | 5614301 | reping |
- 再在从中运行msyql> show slave status;
- show slave status\G
- *************************** 1. row ***************************
- Slave_IO_State: Waiting for master to send event
- Master_Host: 10.62.240.128
- Master_User: replication
- Master_Port: 3306
- Connect_Retry: 60
- Master_Log_File: mysqld-bin.000003
- Read_Master_Log_Pos: 5614301
- Relay_Log_File: mysqld-relay-bin.000001
- Relay_Log_Pos: 4214905
- Relay_Master_Log_File: mysqld-bin.000003
- 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: 5614301
- Relay_Log_Space: 4214905
- 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
- 1 row in set (0.01 sec)
- 注意read_master_log_pos也是5614301,说明复制成功。
- 以后复制出问题时，也是用这种方式查看和修改。那种查入一条记录然后看从库中是不是也执行了的办法，不可取。
还是满认真的嘛
很不错。我收藏了。。。
不错，好文章
怎么回复都不行哦，好文
怎么回复都不行哦，好文，不是吧，老是提示重复了
好。
代码应该用等宽字体 (Courier New)
赞,赞,赞,
@doyouhike:
我的电脑上是修改过的雅黑，看不出来有啥不不对劲儿的