Unable to load credentials from – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 8.4-8.9

Briefly, this error occurs when Elasticsearch cannot access the necessary credentials from the specified source. This could be due to incorrect file paths, insufficient permissions, or the credentials file being missing or corrupted. To resolve this issue, you can verify the file path and ensure it’s correct, check the permissions to ensure Elasticsearch can access the file, or recreate the credentials file if it’s missing or corrupted. Additionally, ensure the credentials themselves are correct and properly formatted.

This guide will help you check for common problems that cause the log ” Unable to load credentials from ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: repository-s3, repositories.

Log Context

Log “Unable to load credentials from ” classname is S3Service.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

        public AWSCredentials getCredentials() {
            try {
                return delegate.getCredentials();
            } catch (Exception e) {
                logger.error(() -> "Unable to load credentials from " + delegate; e);
                throw e;