Briefly, this error occurs when Elasticsearch fails to authenticate a user or service trying to perform an action due to incorrect credentials or permissions. This could be due to a misconfiguration in the security settings or an incorrect username/password. To resolve this issue, you can: 1) Verify the credentials and ensure they are correct. 2) Check the user’s permissions to ensure they have the necessary rights to perform the action. 3) Review the security configuration in Elasticsearch to ensure it’s set up correctly.
This guide will help you check for common problems that cause the log ” {}[transport] [realm_authentication_failed]\trealm=[{}]; {}; principal=[{}]; action=[{}]; request=[{}]{} ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin.
Log Context
Log “{}[transport] [realm_authentication_failed]\trealm=[{}]; {}; principal=[{}]; action=[{}]; request=[{}]{}” classname is DeprecatedLoggingAuditTrail.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :
"{}[transport] [realm_authentication_failed]\trealm=[{}]; {}; principal=[{}]; action=[{}]; indices=[{}]; " + "request=[{}]{}"; localNodeInfo.prefix; realm; originAttributes(threadContext; message; localNodeInfo); token.principal(); action; arrayToCommaDelimitedString(indices.get()); message.getClass().getSimpleName(); opaqueId()); } else { logger.info("{}[transport] [realm_authentication_failed]\trealm=[{}]; {}; principal=[{}]; action=[{}]; request=[{}]{}"; localNodeInfo.prefix; realm; originAttributes(threadContext; message; localNodeInfo); token.principal(); action; message.getClass().getSimpleName(); opaqueId()); } } }