Error
Error Code:
3971
MySQL Error 3971: Group Replication User Password Missing
Description
This error indicates a failure to start MySQL Group Replication. It occurs when a user account is specified for the recovery channel but the corresponding password is not provided, which is mandatory for authentication during the recovery process. Without the password, MySQL cannot establish the secure connection needed for recovery operations.
Error Message
The START GROUP_REPLICATION command failed since the USER option was not provided with PASSWORD for recovery channel.
Known Causes
3 known causesMissing Recovery User Password
The `START GROUP_REPLICATION` command was issued with a `USER` specified for the recovery channel, but the required `PASSWORD` option was omitted.
Incomplete Server Configuration
The `group_replication_recovery_user` variable was set in the MySQL configuration, but `group_replication_recovery_password` was not defined or was left empty.
Incorrect Command Syntax
The `START GROUP_REPLICATION` statement contained an incomplete or improperly formatted `FOR CHANNEL group_replication_recovery` clause, specifically missing the `PASSWORD` for the specified `USER`.
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