Cannot parse the mapping for index – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 7.11-8.9

Briefly, this error occurs when Elasticsearch is unable to understand the mapping provided for a specific index. This could be due to incorrect syntax, unsupported field types, or a mismatch between the data and the mapping. To resolve this issue, you can: 1) Review the mapping for syntax errors or unsupported field types. 2) Ensure that the data types in your documents match the field types in your mapping. 3) Delete and recreate the index with a correct mapping. Always remember to backup your data before deleting an index.

This guide will help you check for common problems that cause the log ” Cannot parse the mapping for index [{}] ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin, mapping, index.

Log Context

Log “Cannot parse the mapping for index [{}]” class name is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 throw new IllegalStateException("Cannot read security-version string in index " + indexName);
 return Version.fromString((String) meta.get(SECURITY_VERSION_STRING));
 } catch (ElasticsearchParseException e) {
 logger.error(() -> "Cannot parse the mapping for index [" + indexName + "]"; e);
 throw new ElasticsearchException("Cannot parse the mapping for index [{}]"; e; indexName);
 }  /**
 * Validates that the index is up to date and does not need to be migrated. If it is not; the


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