Free tier has followings restrictions:
- Max 10.000 requests per day
- Max 256 MB data size
- Max 1 database
If you think your database is close to reaching any of these limits, we recommend you to upgrade to pay-as-you-go plan which:
- No limit on request per day
- Data size up to 100 GB
To upgrade your database, you need to have a payment method. You can add a payment method as described here. After you add a payment method, Upstash restarts your database and your new database starts with the pay-as-you-go plan.
During the upgrade process, you will not lose any data but your database will experience a downtime about 1-2 seconds. Your existing clients will be disconnected. So it is recommended to upgrade your database when there is the least activity.