数据库主从同步时状态信息正确，但数据无法同步

Question

原本主数据库上的二进制文件每小时新建一个，但不知道由于什么原因(批量处理数据导致？数据库一直在读写中)，二进制文件一直在增大，mysql-bin.01045到了100多M，大概从这个日志文件的中间数据就同步不过去了，但状态信息一直显示正常。我用flush log新建了日志文件，主数据库的日志文件更新到了mysql-bin.01046，但从数据库数据还是过不去，目前主从状态信息如下，请大家帮忙分析。多谢mysql> show slave status\G
*************************** 1. row ***************************
               Slave_IO_State: Waiting for master to send event
                  Master_Host: 119.254.3.10
                  Master_User: admin
                  Master_Port: 3306
                Connect_Retry: 60
              Master_Log_File: mysql-bin.010456
          Read_Master_Log_Pos: 4782657
               Relay_Log_File: localhost-relay-bin.000932
                Relay_Log_Pos: 72340246
        Relay_Master_Log_File: mysql-bin.010455
             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: 72340101
              Relay_Log_Space: 107567243
              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: 13092
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)mysql> show master status\G
*************************** 1. row ***************************
            File: mysql-bin.010456
        Position: 4816780
    Binlog_Do_DB: CDN
Binlog_Ignore_DB:
1 row in set (0.00 sec)

Answer 1

贴slave上得show processlist；看一下，应该有个复制进程里的sql在一直没有执行完

Answer 2

show processlist;
+--------+-------------+-----------+------+---------+---------+----------------------------------+----------------------------------
--------------------------------------------------------------------+
| Id     | User        | Host      | db   | Command | Time    | State                            | Info
                                                                    |
+--------+-------------+-----------+------+---------+---------+----------------------------------+----------------------------------
--------------------------------------------------------------------+
| 490182 | system user |           | NULL | Connect | 1970873 | Waiting for master to send event | NULL
                                                                    |
| 490183 | system user |           | CDN  | Connect |   13697 | Copying to tmp table             | insert into user_day_traffic sele
ct 'admin' as user_id, b.log_date, c.avg_traffic as max_traffic, d. |
| 717737 | root        | localhost | CDN  | Query   |       0 | NULL                             | show processlist
                                                                    |
| 721948 | root        | localhost | CDN  | Sleep   |    3994 |                                  | NULL
                                                                    |
+--------+-------------+-----------+------+---------+---------+----------------------------------+----------------------------------
--------------------------------------------------------------------+
4 rows in set (0.00 sec)

Answer 3

这种未执行完的怎么办，怎么让程序执行下去。
重启slave服务？怎么找到MASTER_LOG_POS

Answer 4

Seconds_Behind_Master: 13092
延迟这么长时间了，SLAVE把BINLOG从MASTER拉过后，还原成SQL语句，一条条执行。你现在延迟这么大，所以看到的SLAVE数据没有更新，其实复制是正常的，你只需要静静的等待，哈，