Nested nested object under path ” + nestedPath + ” is not of nested 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 analyzes 2 JSON files to detect many configuration errors.

Briefly, this error message indicates that the object found at the specified path is not of the nested type, which is a requirement for a nested aggregation. In order for a nested aggregation to be performed, the nested object must be of the nested type. This type is used to indicate that the object is nested within another object. If the object at the specified path is not of the nested type, the aggregation cannot be performed, and this error will be thrown.

To easily locate the root cause and resolve this issue try AutoOps for Elasticsearch & OpenSearch. It diagnoses problems by analyzing hundreds of metrics collected by a lightweight agent and offers guidance for resolving them.

This guide will help you check for common problems that cause the log ” nested nested object under path ” + nestedPath + ” is not of nested type ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: sort and search.


Log Context

Log “[nested] nested object under path [” + nestedPath + “] is not of nested type”classname  is SortBuilder.java We extracted the following from Elasticsearch source code for those seeking an in-depth context :

if (nestedObjectMapper == null) {
 throw new QueryShardException(context; "[nested] failed to find nested object under path [" + nestedPath + "]");
 }
 if (nestedObjectMapper.nested().isNested() == false) {
 throw new QueryShardException(context; "[nested] nested object under path [" + nestedPath + "] is not of nested type");
 }
 ObjectMapper objectMapper = context.nestedScope().getObjectMapper(); 
 // get our child query; potentially applying a users filter
 Query childQuery;

 

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