Unregistered Aggregation ” + aggregationName + ” – How to solve this Elasticsearch error

Unregistered Aggregation ” + aggregationName + ” – 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 ” Unregistered Aggregation ” + aggregationName + ” ” 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”Unregistered Aggregation [” + aggregationName + “]”classname  is ValuesSourceRegistry.java We extracted the following from Elasticsearch source code for those seeking an in-depth context :

String fieldDescription = fieldType.typeName();
  throw new IllegalArgumentException("Field [" + fieldType.name() + "] of type [" + fieldDescription +
  "] is not supported for aggregation [" + aggregationName + "]"); }
  return supplier;
  throw new AggregationExecutionException("Unregistered Aggregation [" + aggregationName + "]");
  public AggregationUsageService getUsageService() {
  return usageService;


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

Analyze your cluster