Briefly, this error occurs when Elasticsearch is unable to validate the API key provided. This could be due to an incorrect API key, expired key, or insufficient permissions associated with the key. To resolve this issue, you can verify the API key, renew it if it’s expired, or check the permissions associated with the key to ensure it has the necessary access rights. If the problem persists, consider generating a new API key.
This guide will help you check for common problems that cause the log ” Failed to authenticate api key grant ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: rest, plugin.
Log Context
Log “Failed to authenticate api key grant” class name is RestGrantApiKeyAction.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :
grantRequest; new RestToXContentListener(channel).delegateResponse((listener; ex) -> { RestStatus status = ExceptionsHelper.status(ex); if (status == RestStatus.UNAUTHORIZED) { listener.onFailure( new ElasticsearchSecurityException("Failed to authenticate api key grant"; RestStatus.FORBIDDEN; ex) ); } else { listener.onFailure(ex); } })
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