ConstantScoreQueryBuilder NAME – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 6.8-6.8

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Briefly, this error occurs when there’s an issue with the ConstantScoreQueryBuilder, a class in Elasticsearch used to build queries that return a constant score equal to the query boost for every document in the filter. This error could be due to incorrect usage or a bug in the code. To resolve this, ensure that the ConstantScoreQueryBuilder is being used correctly in your code. If the error persists, consider updating your Elasticsearch version or seeking help from the Elasticsearch community.

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

Log Context

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

 if (token == XContentParser.Token.FIELD_NAME) {
 currentFieldName = parser.currentName();
 } else if (token == XContentParser.Token.START_OBJECT) {
 if (INNER_QUERY_FIELD.match(currentFieldName; parser.getDeprecationHandler())) {
 if (queryFound) {
 throw new ParsingException(parser.getTokenLocation(); "[" + ConstantScoreQueryBuilder.NAME + "]"
 + " accepts only one 'filter' element.");
 query = parseInnerQueryBuilder(parser);
 queryFound = true;
 } else {


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