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by james_cowling
792 days ago
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Convex cofounder here. Yep the database transaction logic, timestamp assignment, concurrency control, etc is all custom. This is a pretty key requirement in our ability to perform dynamic subscriptions and automatic caching in real time. Internally the very bottom of the stack on the hosted product is actually just a write ahead log on RDS and in the open source product it's just sqlite. We'll likely eventually build our own durable write ahead log, and have plenty of experience doing so, but this hasn't been needed so far. |
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