Error
Error Code:
4070
MySQL Error 4070: Group Replication GTID_MODE Required
Description
This error occurs when attempting to configure a MySQL Group Replication channel on a server where Global Transaction Identifiers (GTID) mode is not enabled. Group Replication critically depends on GTID for transaction ordering and consistency across the group, making it a mandatory prerequisite for its operation.
Error Message
When configuring a group replication channel you must do it when GTID_MODE = ON.
Known Causes
3 known causesGTID_MODE is not enabled
The `gtid_mode` system variable is currently set to OFF, which is a strict requirement for Group Replication channel configuration.
Server not configured for GTID
The MySQL server instance was started or configured without `gtid_mode=ON` and `enforce_gtid_consistency=ON` in its configuration file.
Incorrect Group Replication setup attempt
An attempt was made to configure Group Replication without prior knowledge or verification of the necessary GTID prerequisites.
Solutions
Coming SoonDetailed step-by-step solutions for this error are being prepared. In the meantime, try these general troubleshooting tips:
General Troubleshooting Tips
- Check the error message carefully for specific details
- Review recent changes that might have caused the error
- Search for the exact error code in the official documentation
- Check log files for additional context
- Try restarting the application or service