Error
Error Code:
1843
MySQL Error 1843: GTID_EXECUTED Value Mismatch
Description
This error indicates that the `@@GLOBAL.GTID_EXECUTED` system variable, which tracks executed transactions using Global Transaction Identifiers (GTIDs), was unexpectedly altered. This direct modification can lead to inconsistencies in GTID-based replication and typically occurs when the GTID state is manually manipulated or improperly synchronized.
Error Message
@@GLOBAL.GTID_EXECUTED was changed from '%s' to '%s'.
Known Causes
3 known causesDirect Manual GTID Manipulation
A user or automated script explicitly executed `SET GLOBAL GTID_EXECUTED = ...` or similar commands, directly altering the server's GTID state.
Incorrect Replication Setup/Recovery
During initial replication setup, failover, or disaster recovery, the GTID state was not correctly initialized or synchronized between replication servers.
Improper Data Import/Restore
Importing data or restoring a backup without properly handling the GTID information, causing a discrepancy with the current server's GTID state.
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