Slave_IO_Running: No
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'
解决办法：
mysql> stop slave;
Query OK, 0 rows affected (0.01 sec)
mysql> reset slave;
Query OK, 0 rows affected (0.00 sec)
mysql> start slave;
Query OK, 0 rows affected (0.01 sec)
参考资料：
https://blog.csdn.net/mameng1988/article/details/84142859