Aggregator name of type – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 6.8-7.15

Briefly, this error occurs when an Elasticsearch query is trying to use an aggregation type that is not recognized or supported. This could be due to a typo in the aggregation type name, or the use of an aggregation type that is not available in the current version of Elasticsearch. To resolve this issue, you should first check the spelling and syntax of your query. If that’s correct, verify that the aggregation type you’re trying to use is supported in your version of Elasticsearch. If it’s not, you may need to update your Elasticsearch version or use a different aggregation type.

This guide will help you check for common problems that cause the log ” Aggregator [” + name + “] of type [ ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: aggregations, search.

Log Context

Log “Aggregator [” + name + “] of type [” class name is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 return trackScores;
 }  @Override
 public TopHitsAggregationBuilder subAggregations(Builder subFactories) {
 throw new AggregationInitializationException("Aggregator [" + name + "] of type ["
 + getType() + "] cannot accept sub-aggregations");
 }  @Override
 public BucketCardinality bucketCardinality() {