Authentication to realm failed – How to solve related issues

Opster Team

Jan-20, Version: 1.7-8.0

Before you begin reading this guide, we recommend you run Elasticsearch Error Check-Up which can resolve issues that cause many errors.

This guide will help you check for common problems that cause the log ” Authentication to realm failed ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin.

Advanced users might want to skip right to the common problems section in each concept or try running the Check-Up to analyze Elasticsearch configuration and help resolve this error.

Log Context

Log “Authentication to realm {} failed – {}{}” classname is AuthenticationService.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

         private void consumeUser(User user; Map> messages) {
            if (user == null) {
                messages.forEach((realm; tuple) -> {
                    final String message = tuple.v1();
                    final String cause = tuple.v2() == null ? "" : " (Caused by " + tuple.v2() + ")";
                    logger.warn("Authentication to realm {} failed - {}{}"; realm.name(); message; cause);
                });
                List unlicensedRealms = realms.getUnlicensedRealms();
                if (unlicensedRealms.isEmpty() == false) {
                    logger.warn("Authentication failed using realms [{}]." +
                            " Realms [{}] were skipped because they are not permitted on the current license";




 

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