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Comment by Closi | Hacker News Reader

I think it does say something about the future of the open source model though.

Namely, that if you have a company that offers something like a database as a service, search as a service or some other API, and plan to support it's development by offering your own managed service - DO NOT OPEN SOURCE IT WITH PERMISSIVE LICENCES, AMAZON WILL UNDERCUT YOU. AND THEY WILL ALWAYS DO IT CHEAPER BECAUSE THEY DONT HAVE TO FUND FURTHER DEVELOPMENT.

Take an example what Amazon did with Mongo - First they launch a closed-source competitor (totally fine) but then they also take Mongo's source and rebadge it as their own fully-managed DocumentDB (Mongo 1.6 but with closed source additions). It's having your cake and eating it too. There's nothing legally wrong with this, but I do think this is market abuse (because they can only do this because of AWS market penetration) just to make the worlds richest man richer.

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'AND THEY WILL ALWAYS DO IT CHEAPER BECAUSE THEY DONT HAVE TO FUND FURTHER DEVELOPMENT.' Well, they DID actually contribute patches as the whole ES project was 'upstream-first', this is mentioned in the post with proofs.

From what I can find online, it looks like DocumentDB is actually a layer on top of the AWS Aurora PostgreSQL offering. This means they created a MongoDB compatible API, but are not offering a hosted mongodb cluster. (https://news.ycombinator.com/item?id=18870397)

Without wanting to come down on either side of the argument I'd like to say that the Pull Requests they reference in the blog post are over a span of roughly two years and touched somewhere in the vicinity of 1k lines of code. One of them changed one line by adding a synchronized modifier to a function..

I'd not consider that actively developing a product and adding new features.

> Well, they DID actually contribute patches as the whole ES project was 'upstream-first', this is mentioned in the post with proofs.

Elasticsearch has 35000 pull requests merged. Amazon did 9 of those giving them a contributor ratio of 0.026%.

Amazon's contributions to Elasticsearch and Kibana are purely symbolic. This makes their claim as new stewards of the projects even more laughable.

Even if MongoDB was closed-source, it would not stop anyone from creating a product that was compatible with the MongoDB API. Put another way, your API cannot be your USP.

Lots of companies offer S3-compatible APIs, for instance. They compete not on the API, but around reliability, price, features.

Of course, we have Oracle v Google coming up in the US Supreme Court, so things could change, but this is the way things are now.

Part of the reason elasticsearch is popular is because they choose a very permissive license. That was the tradeoff they accepted for getting such high market share.

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