Error
Error Code:
136
MongoDB Error 136: Capped Cursor Position Lost
Description
This error indicates that a tailable cursor has lost its position within a capped collection. This typically occurs when the cursor attempts to read a document that has already been overwritten or removed due to the capped collection's fixed size and FIFO (First-In, First-Out) behavior.
Error Message
Capped Position Lost
Known Causes
3 known causesData Overwritten
New documents have been inserted into the capped collection, pushing the document the cursor was tracking out of the collection's fixed size.
Collection Rollover
The entire capped collection has been filled and wrapped around, meaning all original data, including the cursor's position, has been overwritten.
Inactive Tailable Cursor
A tailable cursor remained idle for too long, allowing subsequent writes to overwrite the data it was attempting to read next.
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