-- 5.7 rm -rf master/ bin/mysqld --initialize-insecure --basedir=$PWD --datadir=$PWD/master --log-error-verbosity=3 bin/mysqld --no-defaults --basedir=$PWD --datadir=$PWD/master --core-file --socket=/tmp/mysql_master.sock --port=3306 --log-error=$PWD/master/log.err --log-bin=master-bin --server_id=1 2>&1 & rm -rf slave/ bin/mysqld --initialize-insecure --basedir=$PWD --datadir=$PWD/slave --log-error-verbosity=3 bin/mysqld --no-defaults --basedir=$PWD --datadir=$PWD/slave --core-file --socket=/tmp/mysql_slave.sock --port=3307 --log-error=$PWD/slave/log.err --log-bin=slave-bin --server_id=2 2>&1 & -- Setup simple master/replica and follow steps from report - master bin/mysql -uroot -S /tmp/mysql_master.sock --prompt='Master>' Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 2 Server version: 5.7.38-log MySQL Community Server (GPL) Copyright (c) 2000, 2022, Oracle and/or its affiliates. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. Master>CREATE USER 'repl'@'localhost' IDENTIFIED BY 'slavepass'; Query OK, 0 rows affected (0.00 sec) Master>GRANT REPLICATION SLAVE ON *.* TO 'repl'@'localhost'; Query OK, 0 rows affected (0.00 sec) Master> Master>CREATE USER 'repl'@'127.0.0.1' IDENTIFIED BY 'slavepass'; Query OK, 0 rows affected (0.00 sec) Master>GRANT REPLICATION SLAVE ON *.* TO 'repl'@'127.0.0.1'; Query OK, 0 rows affected (0.00 sec) Master>FLUSH PRIVILEGES; Query OK, 0 rows affected (0.00 sec) Master>show master status; +-------------------+----------+--------------+------------------+-------------------+ | File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set | +-------------------+----------+--------------+------------------+-------------------+ | master-bin.000001 | 1220 | | | | +-------------------+----------+--------------+------------------+-------------------+ 1 row in set (0.00 sec) Master> - replica bin/mysql -uroot -S /tmp/mysql_slave.sock --prompt='Slave>' Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 2 Server version: 5.7.38-log MySQL Community Server (GPL) Copyright (c) 2000, 2022, Oracle and/or its affiliates. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. Slave>CHANGE MASTER TO -> MASTER_HOST='localhost', -> MASTER_PORT=3306, -> MASTER_USER='repl', -> MASTER_PASSWORD='slavepass', -> MASTER_LOG_FILE='master-bin.000001', -> MASTER_LOG_POS=1220; Query OK, 0 rows affected, 2 warnings (0.01 sec) Slave>start slave; Query OK, 0 rows affected (0.00 sec) Slave>show slave status\G *************************** 1. row *************************** Slave_IO_State: Waiting for master to send event Master_Host: localhost Master_User: repl Master_Port: 3306 Connect_Retry: 60 Master_Log_File: master-bin.000001 Read_Master_Log_Pos: 1220 Relay_Log_File: support-cluster03-relay-bin.000002 Relay_Log_Pos: 321 Relay_Master_Log_File: master-bin.000001 Slave_IO_Running: Yes 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: 1220 Relay_Log_Space: 540 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: 0 Master_SSL_Verify_Server_Cert: No Last_IO_Errno: 0 Last_IO_Error: Last_SQL_Errno: 0 Last_SQL_Error: Replicate_Ignore_Server_Ids: Master_Server_Id: 1 Master_UUID: c4fd790a-e187-11ec-ba6d-020017078e24 Master_Info_File: /export/home/tmp/ushastry/mysql-5.7.38/slave/master.info SQL_Delay: 0 SQL_Remaining_Delay: NULL Slave_SQL_Running_State: Slave has read all relay log; waiting for more updates Master_Retry_Count: 86400 Master_Bind: Last_IO_Error_Timestamp: Last_SQL_Error_Timestamp: Master_SSL_Crl: Master_SSL_Crlpath: Retrieved_Gtid_Set: Executed_Gtid_Set: Auto_Position: 0 Replicate_Rewrite_DB: Channel_Name: Master_TLS_Version: 1 row in set (0.00 sec) Slave> -- steps from report - master Master>create database test_eh; Query OK, 1 row affected (0.00 sec) Master>create table test_eh.t (json_col JSON, gen_col INT GENERATED ALWAYS AS (json_extract(json_col, '$.x')) STORED); Query OK, 0 rows affected (0.02 sec) Master>insert into test_eh.t (json_col) values ('{"x": 1}'); Query OK, 1 row affected (0.01 sec) Master>set names binary; Query OK, 0 rows affected (0.00 sec) Master>insert into test_eh.t (json_col) values (_utf8mb4'{"x": 2}'); Query OK, 1 row affected (0.00 sec) - replica Slave>stop slave; start slave; Query OK, 0 rows affected (0.00 sec) Query OK, 0 rows affected (0.00 sec) Slave> - master Master>insert into test_eh.t (json_col) values (_utf8mb4'{"x": 3}'); Query OK, 1 row affected (0.01 sec) Master>select * from test_eh.t; +----------+---------+ | json_col | gen_col | +----------+---------+ | {"x": 1} | 1 | | {"x": 2} | 2 | | {"x": 3} | 3 | +----------+---------+ 3 rows in set (0.00 sec) - replica Slave>select * from test_eh.t; +----------+---------+ | json_col | gen_col | +----------+---------+ | {"x": 1} | 1 | | {"x": 2} | 2 | | {"x": 3} | NULL | +----------+---------+ 3 rows in set (0.01 sec) Slave>