Analyzer on completion field ” + name + ” must be set when search_analyzer is set – 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 ” analyzer on completion field ” + name + ” must be set when search_analyzer is set ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: 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 “analyzer on completion field [” + name + “] must be set when search_analyzer is set”classname  is CompletionFieldMapper.java We extracted the following from Elasticsearch source code for those seeking an in-depth context :

}
 } 
 if (indexAnalyzer == null) {
 if (searchAnalyzer != null) {
 throw new MapperParsingException("analyzer on completion field [" + name + "] must be set when search_analyzer is set");
 }
 indexAnalyzer = searchAnalyzer = parserContext.getIndexAnalyzers().get("simple");
 } else if (searchAnalyzer == null) {
 searchAnalyzer = indexAnalyzer;
 }

 

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