数据库同步断开之后如何重新同步？

axbxcx

刚才停电，两台服务器的同步断开了。从服务器的数据无法更新。
要如何才能重新同步？
谢谢。

axbxcx

错误信息：
070208 16:15:21 [Note] Slave I/O thread: connected to master 'replication@10.0.0.7:3306',  replication started in log 'mysql-bin.000016' at position 83719334
070208 16:15:21 [ERROR] Error reading packet from server: Client requested master to start replication from impossible position ( server_errno=1236)
070208 16:15:21 [ERROR] Got fatal error 1236: 'Client requested master to start replication from impossible position' from master when reading data from binary log
070208 16:15:21 [Note] Slave I/O thread exiting, read up to log 'mysql-bin.000016', position 83719334

Master 上的文件：

mysql-bin.000014
mysql-bin.000015
mysql-bin.000016
mysql-bin.000017
……
什么情况下可以删除？