--- mapped_pages: - https://www.elastic.co/guide/en/elasticsearch/plugins/current/mandatory-plugins.html applies_to: deployment: self: ga --- # Mandatory plugins [mandatory-plugins] If you rely on some plugins, you can define mandatory plugins by adding `plugin.mandatory` setting to the `config/elasticsearch.yml` file, for example: ```yaml plugin.mandatory: analysis-icu,lang-js ``` For safety reasons, a node will not start if it is missing a mandatory plugin.