Setting setting getKey is empty for repository – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 6.8-8.9

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Briefly, this error occurs when a required setting for a repository in Elasticsearch is not provided or is empty. This could be due to a misconfiguration or an oversight during setup. To resolve this issue, you should first identify the missing setting by checking the error message. Then, you can either provide a valid value for the setting or remove it if it’s not necessary. Ensure that all required settings are properly configured to avoid similar errors in the future.

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This guide will help you check for common problems that cause the log ” Setting [” + setting.getKey() + “] is empty for repository ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: repository-gcs, repositories.

Log Context

Log “Setting [” + setting.getKey() + “] is empty for repository” class name is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 T value = setting.get(metadata.settings());
 if (value == null) {
 throw new RepositoryException(; "Setting [" + setting.getKey() + "] is not defined for repository");
 if (value instanceof String string && Strings.hasText(string) == false) {
 throw new RepositoryException(; "Setting [" + setting.getKey() + "] is empty for repository");
 return value;


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