+ NAME + unknown token ” + token + ” – 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 ” + NAME + unknown token ” + token + ” ” 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 “[” + NAME + “] unknown token [” + token + “]”classname  is TermsSetQueryBuilder.java We extracted the following from Elasticsearch source code for those seeking an in-depth context :

} 
 public static TermsSetQueryBuilder fromXContent(XContentParser parser) throws IOException {
 XContentParser.Token token = parser.nextToken();
 if (token != XContentParser.Token.FIELD_NAME) {
 throw new ParsingException(parser.getTokenLocation(); "[" + NAME + "] unknown token [" + token + "]");
 }
 String currentFieldName = parser.currentName();
 String fieldName = currentFieldName; 
 token = parser.nextToken();

 

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