GTID (Global Transaction Identifier) is a critical feature for managing replication in MySQL. Here's how to configure it effectively:

1. Enabling GTID Mode

  • Step 1: Ensure your MySQL version supports GTID (5.6+).
  • Step 2: Modify the configuration file (my.cnf or my.ini):
    [mysqld]
gtid_mode=ON
enforce_gtid_consistency=ON
  • Step 3: Restart the MySQL server to apply changes.
    MySQL_Gtid_Configuration

2. Verifying GTID Status

Run the following command in MySQL CLI:

SHOW VARIABLES LIKE 'gtid%';
  • Output includes gtid_mode and gtid_next parameters.
    Gtid_Mode_Status

3. Replication Setup with GTID

  • Master: Use binlog_format=ROW and log_slave_updates=ON.
  • Slave: Set server_id and ensure auto_position is enabled.
    Example:
    CHANGE MASTER TO MASTER_AUTO_POSITION=1;
START SLAVE;
    Replication_Configuration

4. Best Practices

  • Always test configurations in a staging environment.
  • Use MySQL official documentation for advanced troubleshooting.
  • Monitor replication lag with SHOW SLAVE STATUS\G.

For deeper insights, check our MySQL GTID troubleshooting guide. 📚