Log Realm is in user-search mode basedn=; search filter= – How To Solve Related Issues

Log Realm is in user-search mode basedn=; search filter= – How To Solve Related Issues

Opster Team

Jan-20, Version: 1.7-8.0

Before you begin reading this guide, we recommend you try running the Elasticsearch Error Check-Up  which can resolve issues causing many log errors (free and no installation required)


This guide will help you check for common problems that cause the log “Realm is in user-search mode basedn=; search filter=” to appear. It’s important to understand the issues related to the log, so to get started, read the general overview on common issues and tips related to the Elasticsearch concepts: plugin, search.

Advanced users might want to skip right to the common problems section in each concept or try running the Check-Up which analyses ES to discover the cause of many errors and provides suitable actionable recommendations. 

Log Context

Log”Realm [{}] is in user-search mode – base_dn=[{}]; search filter=[{}]” classname is LdapUserSearchSessionFactory.java
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

             throw new IllegalArgumentException("[" + RealmSettings.getFullSettingKey(config;
                    LdapUserSearchSessionFactorySettings.SEARCH_BASE_DN) + "] must be specified");
        scope = LdapUserSearchSessionFactorySettings.SEARCH_SCOPE.get(settings);
        searchFilter = getSearchFilter(config);
        logger.info("Realm [{}] is in user-search mode - base_dn=[{}]; search filter=[{}]";
                config.name(); userSearchBaseDn; searchFilter);

    static boolean hasUserSearchSettings(RealmConfig config) {
        return config.settings().getByPrefix("user_search.").isEmpty() == false;


Related issues to this log

We have gathered selected Q&A from the community and issues from Github, that can help fix related issues please review the following for further information :

1 Github Issue Number 37591  

Configuring Ldap Auth Causes Status  


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