Error
Error Code:
1770
MySQL Error 1770: GTID_NEXT Conflict with GTID_NEXT_LIST
Description
This error indicates a conflict in how Global Transaction Identifiers (GTIDs) are being managed within a MySQL session. It occurs when you attempt to set the `@@SESSION.GTID_NEXT` variable to 'AUTOMATIC' while the `@@SESSION.GTID_NEXT_LIST` variable contains one or more explicitly defined GTIDs. MySQL cannot automatically assign the next GTID if a specific list of GTIDs is already provided for the session, as this creates an ambiguity in transaction identification.
Error Message
The system variable @@SESSION.GTID_NEXT cannot be 'AUTOMATIC' when @@SESSION.GTID_NEXT_LIST is non-NULL.
Known Causes
3 known causesConflicting GTID Assignment
A script or command attempts to set `@@SESSION.GTID_NEXT` to 'AUTOMATIC' after `@@SESSION.GTID_NEXT_LIST` has already been populated with specific GTIDs.
Uncleared Session State
A previous operation in the current session set `@@SESSION.GTID_NEXT_LIST`, and it was not reset or cleared before attempting to enable automatic GTID assignment.
Misunderstanding GTID Modes
Incorrectly mixing explicit GTID assignment via `GTID_NEXT_LIST` with the 'AUTOMATIC' mode for `GTID_NEXT` due to a lack of understanding of their mutually exclusive nature.
Solutions
3 solutions available1. Reset GTID_NEXT to AUTOMATIC easy
Explicitly set GTID_NEXT to AUTOMATIC to resolve the conflict.
1
Connect to your MySQL server using a client (e.g., mysql client, MySQL Workbench).
2
Execute the following SQL statement to reset the `GTID_NEXT` session variable.
SET SESSION GTID_NEXT = 'AUTOMATIC';3
Verify that the error no longer occurs when performing your intended operation.
2. Clear GTID_NEXT_LIST easy
Remove any existing values from GTID_NEXT_LIST.
1
Connect to your MySQL server using a client.
2
Execute the following SQL statement to clear the `GTID_NEXT_LIST` session variable. This effectively makes it NULL.
SET SESSION GTID_NEXT_LIST = '';3
Now, you should be able to set `GTID_NEXT` to 'AUTOMATIC' or proceed with operations that expect it.
SET SESSION GTID_NEXT = 'AUTOMATIC';3. Configure GTID_NEXT Correctly for Replication or Specific Operations medium
Understand and set GTID_NEXT appropriately when it's not meant to be AUTOMATIC.
1
Identify the context in which this error is occurring. This often happens during replication setup, failover, or manual transaction manipulation.
2
If you are manually setting GTIDs (e.g., for specific transaction replay), ensure you are not also trying to set `GTID_NEXT` to `AUTOMATIC` simultaneously. Instead, explicitly set `GTID_NEXT` to the desired GTID value.
SET SESSION GTID_NEXT = 'your_gtid_value_here';3
If `GTID_NEXT_LIST` is populated, it implies you're working with a specific set of GTIDs. In such cases, `GTID_NEXT` should be set to one of those GTIDs or `AUTOMATIC` if the list is intended to guide `AUTOMATIC` selection (though the error suggests otherwise). The primary fix is to ensure consistency.
4
Consult the MySQL documentation for the specific version you are using regarding `GTID_NEXT` and `GTID_NEXT_LIST` behavior in your operational scenario.