Could not parse inner _source definition – 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 Check-Up which can resolve issues that cause many errors.

This guide will help you check for common problems that cause the log ” Could not parse inner _source definition ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: query and index.

Advanced users might want to skip right to the common problems section in each concept or try running the Check-Up to analyze Elasticsearch configuration and help resolve this error.

Log Context

Log “Could not parse inner _source definition”classname  is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 PARSER.declareField((p; i; c) -> {
 try {
 } catch (IOException e) {
 throw new ParsingException(p.getTokenLocation(); "Could not parse inner _source definition"; e);
 }; SearchSourceBuilder._SOURCE_FIELD; ObjectParser.ValueType.OBJECT_ARRAY_BOOLEAN_OR_STRING);
 PARSER.declareObject(InnerHitBuilder::setHighlightBuilder; (p; c) -> HighlightBuilder.fromXContent(p);
 PARSER.declareField((parser; builder; context) -> {


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