must have field set for it – How to solve this Elasticsearch error

Opster Team

March-22, 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.

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 ” must have field set for it ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: query, index.


Log Context

Log “must have [field] set for it”classname  is FieldMaskingSpanQueryBuilder.java We extracted the following from Elasticsearch source code for those seeking an in-depth context :

}
 if (inner == null) {
 throw new ParsingException(parser.getTokenLocation(); NAME.getPreferredName() + " must have [query] span query clause");
 }
 if (field == null) {
 throw new ParsingException(parser.getTokenLocation(); NAME.getPreferredName() + " must have [field] set for it");
 }
 FieldMaskingSpanQueryBuilder queryBuilder = new FieldMaskingSpanQueryBuilder(inner; field);
 queryBuilder.boost(boost);
 queryBuilder.queryName(queryName);
 return queryBuilder;

 

See how you can use AutoOps to resolve issues


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