Briefly, this error occurs when the Elasticsearch REST API cannot authenticate the user due to incorrect or missing credentials. This could be due to a wrong username/password, expired tokens, or misconfigured role-based access control. To resolve this issue, you can: 1) Verify the correctness of your credentials; 2) Check if the authentication token is still valid; 3) Review your role-based access control settings to ensure the user has the necessary permissions; 4) Ensure that the user is correctly mapped to the role in Elasticsearch.
This guide will help you check for common problems that cause the log ” {}[rest] [authentication_failed]\t{}; principal=[{}]; uri=[{}]{} ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin.
Log Context
Log “{}[rest] [authentication_failed]\t{}; principal=[{}]; uri=[{}]{}” classname is DeprecatedLoggingAuditTrail.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :
.test(new AuditEventMetaInfo(Optional.of(token); Optional.empty(); Optional.empty())) == false)) {
if (includeRequestBody) {
logger.info("{}[rest] [authentication_failed]\t{}; principal=[{}]; uri=[{}]{}; request_body=[{}]"; localNodeInfo.prefix;
hostAttributes(request); token.principal(); request.uri(); opaqueId(); restRequestContent(request));
} else {
logger.info("{}[rest] [authentication_failed]\t{}; principal=[{}]; uri=[{}]{}"; localNodeInfo.prefix;
hostAttributes(request); token.principal(); request.uri(); opaqueId());
}
}
}
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