Error
Error Code:
117
MongoDB Error 117: Conflicting Operations Blocked
Description
Error 117 indicates that MongoDB cannot complete a requested operation because it conflicts with another operation already in progress or a specific database state. This often arises during administrative tasks, index builds, or replica set reconfigurations where exclusive locks or specific cluster states are required.
Error Message
Conflicting Operation In Progress
Known Causes
3 known causesConcurrent Index Build
An index build operation attempted to run while another index build or a conflicting write operation was already in progress, requiring an exclusive lock.
Replica Set Reconfiguration
Attempting to modify the replica set configuration (e.g., adding or removing a member) while the set is in an unstable state or another configuration change is active.
Exclusive Write Lock
An operation requiring an exclusive write lock on a database or collection encountered another operation already holding or attempting to acquire a conflicting lock.
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