Ldap search timeout is less than the minimum supported search – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 6.8-7.15

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Briefly, this error occurs when the configured timeout for LDAP (Lightweight Directory Access Protocol) search in Elasticsearch is set to a value that is less than the minimum supported time. This could lead to premature termination of LDAP searches. To resolve this issue, you can increase the LDAP search timeout to a value that is equal to or greater than the minimum supported time. Alternatively, you can optimize your LDAP queries to ensure they complete within the set timeout period. Lastly, ensure your LDAP server is not overloaded or experiencing network issues, which could slow down search responses.

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This guide will help you check for common problems that cause the log ” ldap_search timeout [{}] is less than the minimum supported search ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: search, plugin.

Log Context

Log “ldap_search timeout [{}] is less than the minimum supported search ” classname is SessionFactory.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

        this.config = config;
        this.logger = LogManager.getLogger(getClass());
        TimeValue searchTimeout = config.getSetting(SessionFactorySettings.TIMEOUT_LDAP_SETTING;
                () -> SessionFactorySettings.TIMEOUT_DEFAULT);
        if (searchTimeout.millis() 


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