NAME getPreferredName query must – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 7.15-7.15

Briefly, this error occurs when a query is not properly formatted or missing required parameters in Elasticsearch. The “+ NAME.getPreferredName() +” is a placeholder for the specific query type that is causing the issue. To resolve this, ensure that your query is correctly structured and includes all necessary parameters. Check the Elasticsearch documentation for the specific query type for guidance. Additionally, ensure that the field you’re querying exists in your index and that your Elasticsearch version supports the query type you’re using.

This guide will help you check for common problems that cause the log ” [” + NAME.getPreferredName() + “] query must ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: index, query.

Log Context

Log “[” + NAME.getPreferredName() + “] query must ” class name is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 currentFieldName = parser.currentName();
 } else if (token == XContentParser.Token.START_OBJECT) {
 if (QUERY_FIELD.match(currentFieldName; parser.getDeprecationHandler())) {
 QueryBuilder query = parseInnerQueryBuilder(parser);
 if (query instanceof SpanQueryBuilder == false) {
 throw new ParsingException(parser.getTokenLocation(); "[" + NAME.getPreferredName() + "] query must " +
 "be of type span query");
 inner = (SpanQueryBuilder) query;
 checkNoBoost(NAME.getPreferredName(); currentFieldName; parser; inner);
 } else {


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