Unregistered Aggregation aggregationName – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 7.8-7.9

Briefly, this error occurs when you try to use an aggregation in Elasticsearch that is not registered or does not exist. This could be due to a typo in the aggregation name or using an aggregation that is not supported in your current version of Elasticsearch. To resolve this issue, you can check the spelling of your aggregation name, ensure that the aggregation is supported in your Elasticsearch version, or register the aggregation if it’s a custom one.

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

Log Context

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

 valuesSourceConfig.getDescription() + " is not supported for aggregation [" + aggregationName + "]"
 return supplier;
 throw  new AggregationExecutionException("Unregistered Aggregation [" + aggregationName + "]");
 }  public AggregationUsageService getUsageService() {
 return usageService;


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