Briefly, this error occurs when Elasticsearch cannot locate the OpenID Connect realm with the specified name. This could be due to a misconfiguration in the Elasticsearch.yml file or the realm may not exist. To resolve this issue, you can check the Elasticsearch.yml file to ensure the realm name is correctly specified. If the realm does not exist, you may need to create it. Also, ensure that the OpenID Connect realm is enabled in your Elasticsearch settings.
This guide will help you check for common problems that cause the log ” Cannot find OpenID Connect realm with name [{}] ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin.
Log Context
Log “Cannot find OpenID Connect realm with name [{}]” class name is TransportOpenIdConnectPrepareAuthenticationAction.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :
request.getLoginHint();
listener
);
} else {
listener.onFailure(
new ElasticsearchSecurityException("Cannot find OpenID Connect realm with name [{}]"; request.getRealmName())
);
}
} private static void prepareAuthenticationResponse(
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