Failed to parse repository unknown field – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 6.8-7.15

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Briefly, this error occurs when Elasticsearch encounters an unknown field while parsing a repository. This could be due to a typo, incorrect syntax, or using a field that is not supported in the current version of Elasticsearch. To resolve this issue, you should first verify the field name and its syntax. If it’s correct, check the Elasticsearch version you’re using and ensure the field is supported in that version. If the field is deprecated, replace it with the recommended alternative.

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This guide will help you check for common problems that cause the log ” failed to parse repository [{}]; unknown field [{}] ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: cluster, metadata, repository.

Log Context

Log “failed to parse repository [{}]; unknown field [{}]” class name is RepositoriesMetadata.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 if (parser.nextToken() != XContentParser.Token.VALUE_NUMBER) {
 throw new ElasticsearchParseException("failed to parse repository [{}]; unknown type"; name);
 }
 pendingGeneration = parser.longValue();
 } else {
 throw new ElasticsearchParseException("failed to parse repository [{}]; unknown field [{}]";
 name; currentFieldName);
 }
 } else {
 throw new ElasticsearchParseException("failed to parse repository [{}]"; name);
 }

 

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