Aggregator ” + name + ” of type – Elasticsearch Error How To Solve Related Issues

Aggregator ” + name + ” of type – Elasticsearch Error How To Solve Related Issues

Updated: July-20

Elasticsearch 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 causing 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, 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 discover the cause of many errors and provides suitable actionable recommendations (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() {

Related issues to this log

We have gathered selected Q&A from the community and issues from Github, that can help fix related issues please review the following for further information :

1 Elasticsearch – How to filter nested aggregation bucket? -views 9,048 ,score 13

Elasticsearch aggregation doesn't work with nested-type fields -views   7,847,score 6

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