Failed to parse content to map – 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 Error Check-Up which analyzes 2 JSON files to detect many configuration errors.

To easily locate the root cause and resolve this issue try AutoOps for Elasticsearch & OpenSearch. It diagnoses problems by analyzing hundreds of metrics collected by a lightweight agent and offers guidance for resolving them.

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

Log Context

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

try (InputStream stream = input) {
 return new Tuple<>(Objects.requireNonNull(contentType);
 convertToMap(XContentFactory.xContent(contentType); stream; ordered));
 } catch (IOException e) {
 throw new ElasticsearchParseException("Failed to parse content to map"; 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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