Error
Error Code:
250
MongoDB Error 250: Stale Chunk History Detected
Description
This error indicates that a component in your sharded cluster, such as a shard or a `mongos` router, has an outdated view of the chunk distribution and history for a sharded collection. It typically occurs when the configuration servers' metadata is inconsistent with a shard's actual state or when a `mongos` hasn't refreshed its routing table correctly.
Error Message
Stale Chunk History
Known Causes
3 known causesConfig Server Metadata Drift
Occurs when the config servers' view of chunk distribution or history becomes inconsistent, often after a restore, rollback, or manual intervention.
Shard View Desynchronization
A network partition or issues within a shard's replica set can lead to `mongos` or other shards having a stale view of the chunk history.
Unauthorized Metadata Changes
Incorrect or unauthorized manual modifications to the sharded cluster's metadata can directly cause inconsistencies and stale history.
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