mongodb config_error ai_generated true

MongoServerError: shard key not found in document

ID: mongodb/shard-key-violation

Also available as: JSON · Markdown
80%Fix Rate
84%Confidence
3Evidence
2023-01-01First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
7 active — — —

Root Cause

Document missing required shard key field.

generic

Workarounds

  1. 90% success Ensure all documents include shard key field before insert
  2. 88% success Validate documents client-side before write operations

Dead Ends

Common approaches that don't work:

  1. Change shard key on existing collection 75% fail

    Requires resharding, very expensive

  2. Insert null shard key values 82% fail

    All null docs route to one shard, hotspot