> These companies are some of the biggest contributors to open source. It depends how you look at it. Take Kubernetes for example, Google open sources it, but

> These companies are some of the biggest contributors to open source. It depends how you look at it. Take Kubernetes for example, Google open sources it, but there is a caveat, it's not really useful without all the necessary complementary services, that Google happens to offer you. Or take Android, exactly the same problem. Sure, there are some things they truly contribute to open source, but even among them a lot are not necessarily useful outside of those companies and are contributed purely to reduce costs or worse, to gain control. All of this is very different from Redis contribution for example. They never do things like that. > What they aren't likely to want to pay for is a site license from some company trying to sell them a MongoDB under terms practically identical to what Oracle does for Oracle DB. You are missing the point. MongoDB never wanted to sell a license to Amazon or to anyone trying to compete with their own hosted offering. Same goes for any company trying to make money through SaaS. So it's not just unlikely, it's by design. And Amazon making their own implementation is expected outcome of this. Although I suspect no one is going to repeat MongoDB's mistake and release client libraries under permissive licenses after that. Next time Amazon tries to reimplement something, it won't be as drop in of a replacement, as it is now.