A couple of reasons, in this case for a Postgres instance that has 2TB of data.
1) price: you’ll easily spend $$$$$$ on RDS. If you host it on something equivalent with native SSD you’re looking at $800 a month with better performance
2) performance. It’s way faster and you can tune your indices, create views and make it fast and efficient in a predictable way.
3) if you want to, you can easily migrate to a different service. We did just that two months ago, from google cloud to AWS. It gives us vendor independence.
Google has the way better interface and configurability. They’re also cheaper.
Reasons for moving:
1) Google had a mean bug that dropped long standing connections within their own network, and they blamed us despite following all the guides (linger timeouts etc). So had to move anyways.
2) The biggest reason was that we were given free credits by AWS.
1) price: you’ll easily spend $$$$$$ on RDS. If you host it on something equivalent with native SSD you’re looking at $800 a month with better performance
2) performance. It’s way faster and you can tune your indices, create views and make it fast and efficient in a predictable way.
3) if you want to, you can easily migrate to a different service. We did just that two months ago, from google cloud to AWS. It gives us vendor independence.