解决方法
show slave status\G
查看从库问题显示 (截取部分)
Slave_IO_Running: No
Slave_SQL_Running: Yes
Last_IO_Errno: 1236
Last_IO_Error: Got fatal error 1236 from master when reading data from binary log: 'Could not find first log file name in binary log index file'
没有读取到master的文件
master端 进行操作 (刷新log 查看状态)
mysql> flush logs;
Query OK, 0 rows affected (0.01 sec)
mysql> show master status;
+-------------------+----------+--------------+------------------+-------------------+