My mean stack connected to mongodb atlas doesn't load after 30 mins of inactivity.
I created a mean stack app connected to atlas cluster and deployed it on render.com. But 30 mins after I stop working on my mean stack app, the home page takes at least a minute to load. Once it does load after a minute's delay, it doesn't cause a delay anymore, but only as long as I keep working on my app. 30 minutes of inactivity later, the homepage load gets delayed again.
My question is, why is my cluster going into this "sleep" mode just because I haven't used the app in the last 20-30 mins? Is there a setting that always keeps the atlas cluster up and running, without causing home page load delays? Am I missing some configuration?
Render's free instances types automatically sleep after 15 minutes of activity: https://render.com/docs/free#free-web-services. You can upgrade to a $7/month instance to prevent sleeping.