Failed to parse content to type – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 8.8-8.9

Briefly, this error occurs when Elasticsearch is unable to parse the provided content into the specified type. This could be due to incorrect data format, incompatible data types, or a malformed request. To resolve this issue, you can: 1) Check the data format and ensure it matches the expected format. 2) Verify the data types in your index mapping and ensure they are compatible with the data you’re trying to index. 3) Review your request for any syntax errors or missing elements.

This guide will help you check for common problems that cause the log ” Failed to parse content to type ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: .

Log Context

Log “Failed to parse content to type” class name is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 ) throws ElasticsearchParseException {
 config = config != null ? config : XContentParserConfiguration.EMPTY;
 try (XContentParser parser = xContentType != null ? createParser(config; bytes; xContentType) : createParser(config; bytes)) {
 return new Tuple<>(parser.contentType(); extractor.apply(parser));
 } catch (IOException e) {
 throw new ElasticsearchParseException("Failed to parse content to type"; e);
 }  /**
 * Convert a string in some {@link XContent} format to a {@link Map}. Throws an {@link ElasticsearchParseException} if there is any


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