Last_IO_Errno: 1236 Last_IO_Error: Got fatal error 1236 from master when reading data from binary lo
 
> 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: 90376424
        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: NULL
Master_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: 11
1 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;