• mysql 基于position 恢复数据库


    mysql> use zjzc;
    Reading table information for completion of table and column names
    You can turn off this feature to get a quicker startup with -A
    
    Database changed
    mysql> select * from abcdefg;
    +------+
    | id   |
    +------+
    |   10 |
    +------+
    1 row in set (0.04 sec)
    
    mysql> quit
    Bye
    [root@master ~]# set -o vi
    [root@master ~]# mysqldump -uroot -p'1234567'  -R --single-transaction --master-data=2  zjzc >zjzc.sql
    Warning: Using a password on the command line interface can be insecure.
    
    
    [root@master ~]# date
    2015年 07月 30日 星期四 17:02:18 CST
    
    
    
    
    
    
    2.插入数据:
    
    mysql> use zjzc;
    Reading table information for completion of table and column names
    You can turn off this feature to get a quicker startup with -A
    
    Database changed
    mysql> select * from abcdefg;
    +------+
    | id   |
    +------+
    |   10 |
    +------+
    1 row in set (0.00 sec)
    
    mysql> insert into abcdefg values(20);
    Query OK, 1 row affected (0.08 sec)
    
    mysql> commit;
    Query OK, 0 rows affected (0.00 sec)
    
    mysql> select * from abcdefg;
    +------+
    | id   |
    +------+
    |   10 |
    |   20 |
    +------+
    2 rows in set (0.00 sec)
    
    
    [root@master ~]# date
    2015年 07月 30日 星期四 17:09:18 CST
    
    
    3.再次插入数据:
    mysql> use zjzc;
    Reading table information for completion of table and column names
    You can turn off this feature to get a quicker startup with -A
    
    Database changed
    mysql> select * from abcdefg;
    +------+
    | id   |
    +------+
    |   10 |
    |   20 |
    +------+
    2 rows in set (0.00 sec)
    
    mysql> update abcdefg set id=100 where id=20;
    Query OK, 1 row affected (0.07 sec)
    Rows matched: 1  Changed: 1  Warnings: 0
    
    mysql> select * from abcdefg;
    +------+
    | id   |
    +------+
    |   10 |
    |  100 |
    +------+
    2 rows in set (0.00 sec)
    
    mysql> quit
    Bye
    [root@master ~]# date
    2015年 07月 30日 星期四 17:14:58 CST
    
    //////////////////////////////////////////////////////////////////
    mysql> show binary logs;
    +------------------+-----------+
    | Log_name         | File_size |
    +------------------+-----------+
    | mysql-bin.000001 | 260861478 |
    | mysql-bin.000002 |       143 |
    | mysql-bin.000003 |      1717 |
    | mysql-bin.000004 |       430 |
    | mysql-bin.000005 | 537677804 |
    | mysql-bin.000006 | 505764890 |
    +------------------+-----------+
    6 rows in set (0.02 sec)
    ////////////////////////////////////////////////////////////////////
    
    show binlog events in '';
    
    
    
    4.drop table
    mysql> drop table abcdefg;
    Query OK, 0 rows affected (0.28 sec)
    
    mysql> quit
    dBye
    [root@master ~]# date
    2015年 07月 30日 星期四 17:22:24 CST
    
    
    5. 恢复数据库:
    
    mysql> use zjzc;
    Reading table information for completion of table and column names
    You can turn off this feature to get a quicker startup with -A
    
    Database changed
    mysql> select * from abcdefg;
    +------+
    | id   |
    +------+
    |   10 |
    +------+
    1 row in set (0.00 sec)
    
    -- CHANGE MASTER TO MASTER_LOG_FILE='mysql-bin.000006', MASTER_LOG_POS=505764455;
    
    
    
    [root@master binlog]# mysqlbinlog mysql-bin.000006 | grep -n abcdefg
    5200:insert into abcdefg values(30)
    5213:update abcdefg set id=100 where id=30
    10963:DROP TABLE IF EXISTS `abcdefg` /* generated by server */
    10968:CREATE TABLE `abcdefg` (
    10975:/*!40000 ALTER TABLE `abcdefg` DISABLE KEYS */
    10985:INSERT INTO `abcdefg` VALUES (10)
    10993:/*!40000 ALTER TABLE `abcdefg` ENABLE KEYS */
    11043:insert into abcdefg values(20)
    11056:update abcdefg set id=100 where id=20
    11064:DROP TABLE `abcdefg` /* generated by server */
    
    [root@master binlog]# mysqlbinlog mysql-bin.000006 | sed -n '11043,11064p' 
    insert into abcdefg values(20)
    /*!*/;
    # at 505764638
    #150730 17:08:55 server id 135  end_log_pos 505764669 CRC32 0xd190762a 	Xid = 9210
    COMMIT/*!*/;
    # at 505764669
    #150730 17:14:51 server id 135  end_log_pos 505764748 CRC32 0xf71eb1fc 	Query	thread_id=32	exec_time=0	error_code=0
    SET TIMESTAMP=1438247691/*!*/;
    BEGIN
    /*!*/;
    # at 505764748
    #150730 17:14:51 server id 135  end_log_pos 505764859 CRC32 0xed65ed4c 	Query	thread_id=32	exec_time=0	error_code=0
    SET TIMESTAMP=1438247691/*!*/;
    update abcdefg set id=100 where id=20
    /*!*/;
    # at 505764859
    #150730 17:14:51 server id 135  end_log_pos 505764890 CRC32 0x50a8a197 	Xid = 9282
    COMMIT/*!*/;
    # at 505764890
    #150730 17:22:21 server id 135  end_log_pos 505765010 CRC32 0x3ba200e0 	Query	thread_id=36	exec_time=0	error_code=0
    SET TIMESTAMP=1438248141/*!*/;
    DROP TABLE `abcdefg` /* generated by server */
    
    
    [root@master binlog]# mysqlbinlog --start-position=505764455 --stop-position=505764859 /data01/mysqllog/binlog/mysql-bin.000006 >aa.sql
    
    
    [root@master binlog]# mysql -uroot -p1234567 -D zjzc <aa.sql 
    
    
    
    数据已回到那个时间点:
    mysql> select * from abcdefg;
    +------+
    | id   |
    +------+
    |   10 |
    |   20 |
    +------+
    2 rows in set (0.02 sec)
    
    [root@master binlog]# mysqlbinlog --start-position=505764455  /data01/mysqllog/binlog/mysql-bin.000006 >aa.sql
    [root@master binlog]# set -o vi
    [root@master binlog]# mysql -uroot -p1234567 -D zjzc <aa.sql 
    Warning: Using a password on the command line interface can be insecure.
    
    
    mysql> select * from abcdefg;
    ERROR 1146 (42S02): Table 'zjzc.abcdefg' doesn't exist
    
    从给定的 starting position到binary log的结尾

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  • 原文地址:https://www.cnblogs.com/hzcya1995/p/13351502.html
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