> For the complete documentation index, see [llms.txt](https://docs.ngsurvey.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.ngsurvey.com/fr/installation-setup/installation/cluster-scale-out-configuration/mise-en-cache-redis.md).

# Mise en cache Redis

Par défaut, lorsque le cache distribué est activé, ngSurvey utilise sa base de données pour gérer les objets mis en cache. En alternative pour des scénarios à haute performance, il est également possible de configurer un serveur de cache Redis pour ngSurvey. Cette configuration peut améliorer les performances en déchargeant le stockage du cache de votre base de données vers le serveur Redis.

Pour configurer votre serveur de cache Redis, définissez la variable d’environnement suivante avec votre chaîne de connexion Redis ; facultativement, vous pouvez également définir un nom d’instance spécifique pour votre stockage Redis.

```
NGSurvey:RedisConnectionString
NGSurvey:RedisInstanceName
```


---

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