[tobiemh]

Hi PeterZaitsev, many of our core components that are used within the database are open source under the MIT / Apache 2.0 license. With regards to the core database code, it is free to use with no limits on number of nodes, data size, number of connections, number of connected users, features, or functionality. The only limit is for providing a paid-for hosted database-as-a-service. In addition, after 4 years, our complete source code for that version release becomes Apache 2.0 licensed. We've tried to keep this as open as possible for developers / businesses / enterprises to use, whilst at the same time protecting ourselves from some of the events that have happened in the database world over the last few years. It's definitely not our intention to just publish our code on Github just to pretend to be open source!

[lovasoa]

On the other hand, you are able to use all of the libraries that you use only because they didn't make the same choice as you, and chose truly open-source licenses...

In particular, the scaling abilities of your product seem to be based on the capabilities of TiKV, which itself is based on RocksDB. These are both databases in and of themselves, and if any of these two had adopted the same license as you, then you wouldn't have been able to release the product you are releasing...