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CardinalityOverflows

Field Type Description
total_overflows uint64 Overflowed the total limit for the action ID, including platform and app ID.
group_by_overflows uint64 Overflowed only the group by limit for the action ID. This can include both client overflows as well as server overflows.
query_group_by_collapsed bool If this is true, during query time the query engine detected very large cardinality during a group by query. Even with ingestion limits, it's still possible if the data is problematic and we are querying over a very large window. In order to avoid OOM during TopK processing, the query engine will fall back to a collapsed group by query which will return a single time series. The FE should display an indication that this happened as well as the ability to view example cardinality.

Example

JSON
{
  "group_by_overflows": 1,
  "query_group_by_collapsed": false,
  "total_overflows": 42
}