elasticsearch query_error ai_generated true

TooManyBucketsException: too many buckets

ID: elasticsearch/aggregation-too-deep

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

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
8 active — — —

Root Cause

Aggregation creates too many buckets exceeding limit.

generic

Workarounds

  1. 90% success Add filters to reduce cardinality before aggregation
  2. 88% success Use composite aggregation for paginated results

Dead Ends

Common approaches that don't work:

  1. Set search.max_buckets to unlimited 85% fail

    OOM on large cardinality fields

  2. Remove all aggregation limits 82% fail

    Same OOM risk