Failed to parse index option – 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 ” failed to parse index option ” 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 “failed to parse index option [{}]”classname  is TypeParsers.java We extracted the following from Elasticsearch source code for those seeking an in-depth context :

} else if (INDEX_OPTIONS_FREQS.equalsIgnoreCase(value)) {
 return IndexOptions.DOCS_AND_FREQS;
 } else if (INDEX_OPTIONS_DOCS.equalsIgnoreCase(value)) {
 return IndexOptions.DOCS;
 } else {
 throw new ElasticsearchParseException("failed to parse index option [{}]"; value);
 }
 } 
 public static DateFormatter parseDateTimeFormatter(Object node) {
 if (node instanceof String) {

 

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