[bug]MySQL 哈希扫描错误地应用日志导致主从中断

1、建表插入数据

CREATE TABLE `s1` (

 `id` int(11) NOT NULL DEFAULT '0' COMMENT '',

 `max` int(11) NOT NULL COMMENT ''

) ENGINE=InnoDB DEFAULT CHARSET=utf8 ROW_FORMAT=DYNAMIC;


insert into s1 values(1,999999);


2、创建函数

DELIMITER $$

CREATE DEFINER=`root`@`%` FUNCTION `nextTrxSerno`() RETURNS varchar(30) CHARSET utf8

BEGIN

DECLARE v_id INT (11) ;

DECLARE v_max INT (11) ;

DECLARE EXIT HANDLER FOR SQLEXCEPTION RETURN '' ;



UPDATE

s1 s SET

s.id = s.id + 1 ;



SELECT

s.id,

s.max INTO v_id,

v_max

FROM

s1 s ;



IF v_id >= v_max - 10 THEN SET v_id = 1 ; END IF ;



UPDATE

s1 s SET

s.id = v_id + 1 ;



RETURN CONCAT(DATE_FORMAT(SYSDATE(), '%Y%m%d%H%i%S'), LPAD(v_id, 8, '0')) ;



END $$

DELIMITER ;


3、调用函数

select nextTrxSerno();


4、查看结果：

主库：

mysql> select * from s1;

+----+--------+

| id | max    |

+----+--------+

|  3 | 999999 |

+----+--------+

1 row in set (0.00 sec)



备库：

mysql> select * from s1;

+----+--------+

| id | max    |

+----+--------+

|  1 | 999999 |

+----+--------+

1 row in set (0.00 sec)


备库：
mysql> show slave status\G;
*************************** 1. row ***************************
               Slave_IO_State: Waiting for master to send event
                  Master_Host: 172.17.134.50
                  Master_User: repl
                  Master_Port: 3305
                Connect_Retry: 60
              Master_Log_File: mysql_bin.000305
          Read_Master_Log_Pos: 8857
               Relay_Log_File: relay.000002
                Relay_Log_Pos: 6992
        Relay_Master_Log_File: mysql_bin.000305
             Slave_IO_Running: Yes
            Slave_SQL_Running: No
              Replicate_Do_DB: 
          Replicate_Ignore_DB: 
           Replicate_Do_Table: 
       Replicate_Ignore_Table: 
      Replicate_Wild_Do_Table: 
  Replicate_Wild_Ignore_Table: sys.%,performance_schema.%,information_schema.%
                   Last_Errno: 1032
                   Last_Error: Coordinator stopped because there were error(s) in the worker(s). The most recent failure being: Worker 1 failed executing transaction 'b034d235-6773-11ee-afe7-00163e04944a:3984450' at master log mysql_bin.000305, end_log_pos 8826. See error log and/or performance_schema.replication_applier_status_by_worker table for more details about this failure or others, if any.
                 Skip_Counter: 0
          Exec_Master_Log_Pos: 8520
              Relay_Log_Space: 7526
              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: 0
                Last_IO_Error: 
               Last_SQL_Errno: 1032
               Last_SQL_Error: Coordinator stopped because there were error(s) in the worker(s). The most recent failure being: Worker 1 failed executing transaction 'b034d235-6773-11ee-afe7-00163e04944a:3984450' at master log mysql_bin.000305, end_log_pos 8826. See error log and/or performance_schema.replication_applier_status_by_worker table for more details about this failure or others, if any.
  Replicate_Ignore_Server_Ids: 
             Master_Server_Id: 16708
                  Master_UUID: b034d235-6773-11ee-afe7-00163e04944a
             Master_Info_File: mysql.slave_master_info
                    SQL_Delay: 0
          SQL_Remaining_Delay: NULL
      Slave_SQL_Running_State: 
           Master_Retry_Count: 86400
                  Master_Bind: 
      Last_IO_Error_Timestamp: 
     Last_SQL_Error_Timestamp: 231027 21:13:43
               Master_SSL_Crl: 
           Master_SSL_Crlpath: 
           Retrieved_Gtid_Set: b034d235-6773-11ee-afe7-00163e04944a:3984428-3984450
            Executed_Gtid_Set: b034d235-6773-11ee-afe7-00163e04944a:1-3984449
                Auto_Position: 1
         Replicate_Rewrite_DB: 
                 Channel_Name: 
           Master_TLS_Version: 
1 row in set (0.00 sec)

ERROR: 
No query specified