mysql> show slave status\G
*************************** 1. row ***************************
               Slave_IO_State: Waiting for master to send event
                    ……
                   Last_Errno: 1590
                   Last_Error: The incident LOST_EVENTS occured on the master. Message: REVOKE/GRANT failed while granting/revoking privileges in databases.
                 Skip_Counter: 0
          Exec_Master_Log_Pos: 12531
              Relay_Log_Space: 69304
              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: 1590
               Last_SQL_Error: The incident LOST_EVENTS occured on the master. Message: REVOKE/GRANT failed while granting/revoking privileges in databases. 
               ……

# Incident: LOST_EVENTS
RELOAD DATABASE; # Shall generate syntax error

mysql> create user test@'%',app@'%' identified by 'Root@123';
ERROR 1819 (HY000): Your password does not satisfy the current policy requirements
mysql> grant all on test.* to test@'%',app@'%';
ERROR 1819 (HY000): Your password does not satisfy the current policy requirements

mysql> grant select,insert,file on test.* to test@'%' identified by 'Q1w2e3E$';
ERROR 1221 (HY000): Incorrect usage of DB GRANT and GLOBAL PRIVILEGES
mysql> select user,host from mysql.user where user='test' and host='%';
+------+--------+
| user | host |
+------+--------+
| test | %    |
+------+--------+
1 row in set (0.00 sec)
mysql> show grants for test@'%';
+--------------------------------------------+
| Grants for test@%                 |
+--------------------------------------------+
| GRANT USAGE ON *.* TO 'test'@'%' |
+---------------------------------------------+
1 row in set (0.00 sec)

mysql> create user test@'10.186.63.5' identified by '123';
Query OK, 0 rows affected (0.00 sec)
mysql> grant all on test.* to test@'10.186.63.5',test@'10.186.63.29';
ERROR 1133 (42000): Can't find any matching row in the user table
mysql> show grants for test@'10.186.63.5';
+----------------------------------------------------------+
| Grants for test@10.186.63.5                              |
+----------------------------------------------------------+
| GRANT USAGE ON *.* TO 'test'@'10.186.63.5'               |
| GRANT ALL PRIVILEGES ON `test`.* TO 'test'@'10.186.63.5' |
+----------------------------------------------------------+
2 rows in set (0.00 sec)

mysql> show global variables like '%validate%';
+--------------------------------------+--------+
| Variable_name                        | Value  |
+--------------------------------------+--------+
| query_cache_wlock_invalidate         | OFF    |
| validate_password_check_user_name    | OFF    |
| validate_password_dictionary_file    |        |
| validate_password_length             | 8      |
| validate_password_mixed_case_count   | 1      |
| validate_password_number_count       | 1      |
| validate_password_policy             | MEDIUM |
| validate_password_special_char_count | 1      |
+--------------------------------------+--------+
mysql> select user,host from mysql.user;
+---------------+-----------+
| user          | host      |
+---------------+-----------+
| universe_op   | %         |
| root          | 127.0.0.1 |
| mysql.session | localhost |
| mysql.sys     | localhost |
| root          | localhost |
+---------------+-----------+
5 rows in set (0.00 sec)
mysql> create user test@'%',app@'%' identified by 'Root@123';
ERROR 1819 (HY000): Your password does not satisfy the current policy requirements
mysql> select user,host from mysql.user;（app@'%'創(chuàng)建成功，test@'%'創(chuàng)建失?。?
+---------------+-----------+
| user          | host      |
+---------------+-----------+
| app           | %         |
| universe_op   | %         |
| root          | 127.0.0.1 |
| mysql.session | localhost |
| mysql.sys     | localhost |
| root          | localhost |
+---------------+-----------+
6 rows in set (0.00 sec)

mysql>set global super_read_only=0;
mysql>set sql_log_bin=0;
mysql>grant all on test.* to test@'10.186.63.5';

mysqlbinlog --no-defaults -vv --base64-output=decode-rows mysql-bin.000016 > /root/bin.log

stop slave sql_thread;
set gtid_next='9d2e7089-2774-11ee-99d6-02000aba3f05:4198564';
begin;commit;
set gtid_next='automatic';
start slave sql_thread;