Failed to parse mapping: – 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 mapping: ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: metadata and cluster.

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 mapping: {}”classname  is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

if (request.mappings != null) {
 try {
 templateBuilder.putMapping(MapperService.SINGLE_MAPPING_NAME; request.mappings);
 } catch (Exception e) {
 throw new MapperParsingException("Failed to parse mapping: {}"; e; request.mappings);
 for (Alias alias : request.aliases) {
 AliasMetadata aliasMetadata = AliasMetadata.builder(


Watch product tour

Watch how AutoOps finds & fixes Elasticsearch problems

Analyze Your Cluster
Skip to content