MySQL error code
MySQL error 3991
MySQL server error 3991 is ER_RPL_ASYNC_RECONNECT_AUTO_POSITION_OFF, reported with SQLSTATE HY000.
Failed to enable Asynchronous Replication Connection Failover feature. The CHANGE REPLICATION SOURCE TO SOURCE_CONNECTION_AUTO_FAILOVER = 1 can only be set when SOURCE_AUTO_POSITION option of CHANGE REPLICATION SOURCE TO is enabled.
| Error | 3991 |
|---|---|
| Name | ER_RPL_ASYNC_RECONNECT_AUTO_POSITION_OFF |
| SQLSTATE | HY000 |
| Group | Server errors |
Source: MySQL 8.4 Error Reference