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

Opster Team

August-23, Version: 6.8-8.9

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.

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;