做主从同步时的报错：
mysql> change master to master_host=‘192.168.10.151‘,master_user=‘repl‘,master_password=‘zrer90‘,master_log_file=‘mysql2-bin.000004‘,master_log_pos=98;
ERROR 1201 (HY000): Could not initialize master info structure; more error messages can be found in the MySQL error log
解决办法：
mysql> stop slave ;
Query OK, 0 rows affected, 1 warning (0.00 sec)
mysql> reset slave ;
Query OK, 0 rows affected (0.00 sec)
然后在设置连接主服务器：
mysql> change master to master_host=‘192.168.10.151‘,master_user=‘repl‘,master_password=‘zrer90‘,master_log_file=‘mysql2-bin.000004‘,master_log_pos=98;
Query OK, 0 rows affected (0.05 sec)