奴隶状态：
Last_IO_Errno: 1595
Last_IO_Error: Relay log write failure: could not queue event from master
Last_SQL_Errno: 0
来自错误日志：
[ERROR] Slave I/O for channel 'db12': Unexpected master's heartbeat data: heartbeat is not compatible with local info; the event's data: log_file_name toku10-bin.000063<D1> log_pos 97223067, Error_code: 1623
[ERROR] Slave I/O for channel 'db12': Relay log write failure: could not queue event from master, Error_code: 1595
我多次尝试重启slave_io线程，还是一样。