Rescore doesn’t support ” + fieldName + ” – 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 ” rescore doesn’t support ” + fieldName + ” ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: search.

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 “rescore doesn’t support [” + fieldName + “]”classname  is RescorerBuilder.java We extracted the following from Elasticsearch source code for those seeking an in-depth context :

fieldName = parser.currentName();
 } else if (token.isValue()) {
 if (WINDOW_SIZE_FIELD.match(fieldName; parser.getDeprecationHandler())) {
 windowSize = parser.intValue();
 } else {
 throw new ParsingException(parser.getTokenLocation(); "rescore doesn't support [" + fieldName + "]");
 }
 } else if (token == XContentParser.Token.START_OBJECT) {
 rescorer = parser.namedObject(RescorerBuilder.class; fieldName; null);
 } else {
 throw new ParsingException(parser.getTokenLocation(); "unexpected token [" + token + "] after [" + fieldName + "]");

 

Try AutoOps to detect and fix issues in your cluster:

Analyze Your Cluster

Skip to content