Error
Error Code:
169
MongoDB Error 169: Sharded View Command Not Supported
Description
Error 169 indicates that a command designed for a sharded view or a sharded cluster environment was executed directly on a `mongod` instance. This typically occurs when a `mongod` instance, which serves as a data bearer, receives a command that should instead be processed by a `mongos` router in a sharded setup.
Error Message
Command On Sharded View Not Supported On Mongod
Known Causes
3 known causesIncorrect Connection Target
Attempting to run sharding-specific commands by connecting directly to a `mongod` instance instead of a `mongos` router within a sharded cluster.
Standalone `mongod` Operation
Executing commands related to sharded views on a standalone `mongod` instance, which does not participate in a sharded cluster and lacks the necessary functionality.
Architectural Misunderstanding
Lack of clarity regarding the distinct roles of `mongod` (data server) and `mongos` (query router) in a MongoDB sharded cluster architecture.
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