License mode – valid – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 6.8-8.9

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Briefly, this error occurs when Elasticsearch is running in a valid license mode. However, this is not an error but a status message indicating that the Elasticsearch instance is operating under a valid license. If you’re seeing this message frequently and it’s causing confusion, you can adjust your logging settings to reduce the verbosity. Alternatively, if you suspect that your license shouldn’t be valid, you should check your license details and status using the appropriate Elasticsearch APIs.

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This guide will help you check for common problems that cause the log ” license [{}] mode [{}] – valid ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin, license.

Log Context

Log “license [{}] mode [{}] – valid” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

      "license [{}] mode [{}] - valid"; license.uid(); license.operationMode().name().toLowerCase(Locale.ROOT));


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