Aggregator ” + name + ” of type – How to solve this Elasticsearch error

Aggregator ” + name + ” of type – How to solve this Elasticsearch error

Opster Team

July-20, Version: 1.7-8.0

Before you begin reading this guide, we recommend you try running the Elasticsearch Error Check-Up which can resolve issues that cause many errors.

This guide will help you check for common problems that cause the log ” Aggregator ” + name + ” of type ” to appear. It’s important to understand the issues related to the log, so to get started, read the general overview on common issues and tips related to the Elasticsearch concepts: search and aggregations.

Advanced users might want to skip right to the common problems section in each concept or try running the Check-Up which analyses ES to pinpoint the cause of many errors and provides suitable actionable recommendations how to resolve them (free tool that requires no installation).

Log Context

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

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


Run the Check-Up to get a customized report like this:

Analyze your cluster