Error
Error Code:
42
MongoDB Error 42: Log Write Failed
Description
Error 42: Log Write Failed signifies that MongoDB was unable to write critical operational data to its journal or log files. This often points to an underlying issue with the storage system or the database's ability to access it, jeopardizing data integrity and durability.
Error Message
Log Write Failed
Known Causes
3 known causesInsufficient Disk Space
The storage volume where MongoDB's data files and journals reside has run out of free space, preventing new write operations.
File System Permissions
The MongoDB process lacks the necessary read/write permissions for its data directory or journal files, blocking critical write operations.
Underlying Storage Failure
Physical disk errors, network storage issues, or other hardware problems are preventing write operations to the file system where MongoDB stores its data.
Solutions
Coming SoonGeneral 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