> ## Documentation Index
> Fetch the complete documentation index at: https://doc.lucidworks.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Empty Facets in Solr

export const LwTemplate = ({title = "Key questions to get you started", icon = "sparkles", cta = "Powered by Agent Studio", linkHref = "https://lucidworks.com/demo/?utm_source=docs&utm_medium=referral&utm_campaign=docs_cta_ai"}) => {
  const [isLoaded, setIsLoaded] = useState(false);
  useEffect(() => {
    const timer = setTimeout(() => {
      setIsLoaded(true);
    }, 500);
    return () => clearTimeout(timer);
  }, []);
  return <div className="lw-template-container">
      <Card title={title} icon={icon}>
        {isLoaded && <span dangerouslySetInnerHTML={{
    __html: `<lw-template id="a029c1a9-28be-427e-b0e1-5d918920246a"></lw-template
            >`
  }} />}
        <Link href={linkHref} className="agent-studio-link text-left text-gray-600 gap-2 dark:text-gray-400 text-sm font-medium flex flex-row items-center hover:text-primary dark:hover:text-primary-light group-hover:text-primary group-hover:dark:text-primary-light">Powered by Lucidworks Agent Studio</Link>
      </Card>
    </div>;
};

[old doc.lw link]: https//doc.lucidworks.com/app-studio/4.2/3134

[localhost link]: http://localhost:3000/docs/5/app-studio/reference/faq/solr-empty-facets

[mintlify link]: https://doc.lucidworks.com/docs/5/app-studio/reference/faq/solr-empty-facets

<LwTemplate />

## How do I avoid displaying empty facet values in my Appkit visualization?

By default Solr will return all the facet values for a given facet field, regardless of whether they match any documents in the result sets.

This behavior is controlled by the Solr [facet.mincount configuration parameter](https://cwiki.apache.org/confluence/display/solr/Faceting#Faceting-Thefacet.mincountParameter) which defaults to `0`.

Setting the facet.mincount parameter to `1` will ensure that only values which match at least one document will be returned in the facet list.

This can be done by adding a custom parameter at query time or by modifying the [search handler](https://cwiki.apache.org/confluence/display/solr/RequestHandlers+and+SearchComponents+in+SolrConfig#RequestHandlersandSearchComponentsinSolrConfig-SearchHandlers) in the `solrconfig.xml` file for the relevant collection.