Last_IO_Errno: 1236 Last_IO_Error: Got fatal error 1236 from master when reading data from binary lo

mysql> show slave status/G*************************** 1. row *************************** Slave_IO_State: Master_Host: 10.122.41.208 Master_User: replication Master_Port: 3306 Connect_Retry: 60 Master_Log_File: mysql-bin.000173 Read_Master_Log_Pos: 90376278 Relay_Log_File: mysql-relay-bin.001980 Relay_Log_Pos: 903724 Relay_Master_Log_File: mysql-bin.000173 Slave_IO_Running: No Slave_SQL_Running: Yes Replicate_Do_DB: Replicate_Ignore_DB: Replicate_Do_Table: Replicate_Ignore_Table: Replicate_Wild_Do_Table: Replicate_Wild_Ignore_Table: Last_Errno: 0 Last_Error: Skip_Counter: 0 Exec_Master_Log_Pos: 90376278 Relay_Log_Space: 90376726 Until_Condition: None Until_Log_File: Until_Log_Pos: 0 Master_SSL_Allowed: No Master_SSL_CA_File: Master_SSL_CA_Path: Master_SSL_Cert: Master_SSL_Cipher: Master_SSL_Key: Seconds_Behind_Master: NULLMaster_SSL_Verify_Server_Cert: No Last_IO_Errno: 1236 Last_IO_Error: Got fatal error 1236 from master when reading data from binary log: 'Client requested master to start replication from impossible position; the first event 'mysql-bin.000173' at 90376278, the last event read from '/mysql/binlog/mysql-bin.000173' at 4, the last byte read from '/mysql/binlog/mysql-bin.000173' at 4.' Last_SQL_Errno: 0 Last_SQL_Error: Replicate_Ignore_Server_Ids: Master_Server_Id: 111 row in set (0.00 sec)mysql> 

比较一个笨的处理办法：

重新change position点，然后碰到重复insert的报错，就直接看position点，如果在90376278之前的，就skip掉，执行：

stop slave;set global sql_slave_skip_counter=1;start slave;show slave status/G;