Error
Error Code:
174
MongoDB Error 174: Transport Session Unknown
Description
This error indicates that the MongoDB server encountered a client request on a network session it no longer recognizes or that has been unexpectedly terminated. It typically occurs when the underlying network connection between the client and server is broken or reset during an active operation.
Error Message
Transport Session Unknown
Known Causes
4 known causesUnstable Network Connection
The network link between the MongoDB client and server was interrupted or became unstable, causing the session to drop unexpectedly.
Server-Side Connection Timeout
The MongoDB server closed an idle client connection due to a configured timeout, and the client attempted to use the expired session.
Client Application Crash/Restart
The client application unexpectedly terminated or restarted, leading to the loss of its established network session with the MongoDB server.
Firewall or Proxy Interference
An intervening firewall, load balancer, or proxy server terminated the TCP connection prematurely, unbeknownst to the MongoDB client or server.
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