| I appreciate yours as well! I agree that, from a commercial point of view, databases have been shown to need management. > As to harm to the open source ecosystem, cloud providers wrapping managed services around databases has been shown to stifle innovation on those open source products I don't think we agree on this. I think PostgreSQL has improved dramatically in the past 5 years, coinciding with (but perhaps not caused by) its increased adoption by AWS customers. The more customers/users FOSS projects have, the more information they have to work with, and the more interested developers they have to draw contributions from. But it's OK, we don't need to agree on this point. We can adopt the axiom "MongoDB is more innovative because they have a non-OSI-compliant license". Again, I don't think this is necessarily true, but I can concede it so it doesn't distract us. > You mention <quote> - why? The reason requires stretching our imagination just a bit, but I hope you won't see it as philosophical, since real people plan against scenarios like this. Let's say that, today, MongoDB the company is benevolent, and happy to permit anybody who asks to operate their software. Everybody's happy. At some point in the future, there's some management change, and the company that owns this IP has decided that the best thing they can do is box-in the customers they have, and make other service providers' lives as legally difficult as possible, thanks to the license they switched to in 2018. Now, in the future, if you want this database management service that we agree is important and necessary, and you don't want to use MongoDB's platform, you're out of luck. If you stick to databases with an OSI-certified license, you never have to make contingency plans for this future. There will always be a vendor for code with this license, as long as there's sufficient customer demand, until time immemorial. Because you can not control the tail risk of MongoDB becoming an Orcale-like company (or, for that matter, being acquired by Oracle), you can not rule out the possibility that all vendors will be excluded from offering MongoDB as a service. You need to plan for the worst case, and treat it as a time-bomb. You might consider this a philosophical argument, but, practically, this is why OSI has rule #6, and it's why the SSPL (and Elastic License) are not OSI-certified. > Your discussion implies MongoDB's license (and Elastic and now a host of others) prevents people from contributing to MongoDB. It doesn't. Correct, it doesn't. It prevents them from contributing to software with a license that does not "Discriminate Against Fields of Endeavor" and does not "Restrict Other Software". Which again, doesn't seem like a bad thing today but opens up paths that are otherwise avoidable. Even if we buy the innovation argument, and even if this change was made with the purest of intentions, it's noncompliance with OSI standards makes it not worth the tail risk for people who want to pick software today that will be serviceable in 15 years. |