mongodb resource_error ai_generated true

MongoServerError: PlanExecutor error: aggregation exceeded memory limit

ID: mongodb/aggregation-memory-exceeded

Also available as: JSON · Markdown
82%Fix Rate
86%Confidence
3Evidence
2023-01-01First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
7 active — — —

Root Cause

Aggregation pipeline exceeded memory limit without allowDiskUse.

generic

Workarounds

  1. 92% success Use allowDiskUse:true in aggregation pipeline
  2. 90% success Add early in pipeline to reduce data volume

Dead Ends

Common approaches that don't work:

  1. Set internalQueryMaxBlockingSortMemory very high 82% fail

    Server OOM risk

  2. Remove aggregation stages 78% fail

    Loses data transformation logic