Error
Error Code:
69
MongoDB Error 69: Auth Schema Incompatible
Description
Error 69, 'Auth Schema Incompatible', indicates a mismatch in the authentication mechanisms or configurations between the MongoDB client and the server. This typically occurs when a client attempts to authenticate using a method not supported or configured by the server, or vice versa, preventing successful connection.
Error Message
Auth Schema Incompatible
Known Causes
4 known causesAuthentication Mechanism Mismatch
The client is attempting to authenticate using a mechanism (e.g., SCRAM-SHA-1 vs. SCRAM-SHA-256) that is not enabled or supported by the MongoDB server version or its configuration.
Outdated Client or Server Versions
Older MongoDB client drivers or server versions may not support newer authentication protocols, leading to incompatibility when trying to connect to a newer or older peer.
Incorrect Authentication Configuration
Misconfigurations in the MongoDB server's security settings, such as `authSchemaUpgrade` settings or `setParameter` options, can lead to incompatible authentication states.
Corrupted Authentication Data
Rarely, corruption within the `admin` database or authentication-related collections can cause the server to report an incompatible authentication schema.
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