NAME analyzer analyzer not found – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 6.8-8.9

Briefly, this error occurs when Elasticsearch tries to use an analyzer that doesn’t exist. Analyzers are used to break down text into tokens for indexing. The error indicates that the specified analyzer is not found in the Elasticsearch configuration. To resolve this issue, you can either create a new custom analyzer with the specified name or change your request to use one of the built-in analyzers. Also, ensure that the analyzer is correctly defined in your index settings and there are no typographical errors in the analyzer’s name.

This guide will help you check for common problems that cause the log ” [” + NAME + “] analyzer [” + analyzer + “] not found ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: query, index.

Log Context

Log “[” + NAME + “] analyzer [” + analyzer + “] not found” class name is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 }  @Override
 protected Query doToQuery(SearchExecutionContext context) throws IOException {
 if (analyzer != null && context.getIndexAnalyzers().get(analyzer) == null) {
 throw new QueryShardException(context; "[" + NAME + "] analyzer [" + analyzer + "] not found");
 }  final MatchQueryParser queryParser = new MatchQueryParser(context);
 if (analyzer != null) {


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