Version string expected min version – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 7.6-7.9

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Briefly, this error occurs when Elasticsearch expects a version string for the [min_version] parameter, but it’s not provided or is in an incorrect format. This usually happens during operations like index creation or upgrade. To resolve this, ensure that the [min_version] parameter is correctly specified in the request. It should be a string representing the minimum version of Elasticsearch required for the operation. Also, check for any syntax errors or typos in your request.

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This guide will help you check for common problems that cause the log ” version string expected [min_version] ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: repositories, version.

Log Context

Log “version string expected [min_version]” class name is RepositoryData.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 throw new ElasticsearchParseException("start object expected [" + INDEX_METADATA_IDENTIFIERS + "]");
 }
 indexMetaIdentifiers.putAll(parser.mapStrings());
 } else if (MIN_VERSION.equals(field)) {
 if (parser.nextToken() != XContentParser.Token.VALUE_STRING) {
 throw new ElasticsearchParseException("version string expected [min_version]");
 }
 final Version version = Version.fromString(parser.text());
 assert SnapshotsService.useShardGenerations(version);
 } else {
 throw new ElasticsearchParseException("unknown field name  [" + field + "]");

 

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