ClickHouse too. Their sharedmergetree is not open source at all. It makes ClickHouse OSS obsolete design-wise. Shame.
You can scale the pure open source project really far. And if you need more, you do have money to pay for it.
People need to stop thinking that open source is free leech. Open source is about sharing knowledge and building trust between each other. But we are still living in a business world where we are competing.
I think people should be aware that the Core Storage work is not beeing done in the open anymore. The process of letting the open source core grow useless while selling proprietary addons is fine. I just have a problem with people calling this open source.
Some prefer using open source. Are they leeches ?
Regarding scaling open source projects, did Linux scale ?