Mark, thank you for the question.
We were saddened to see the RethinkDB shutdown announcement. Building successful open source businesses has been and will continue to be a challenge. Databases are particularly hard, because there are so many feature-rich, open source alternatives available at the low end of the market, and one gigantic, entrenched player in the enterprise space.
That said, as another poster has already mentioned (thank you for the reply @twrobel), Cockroach Labs is well capitalized (we’ve raised $26.5M from very strong investors) and we certainly have a great team. The technology that inspired CockroachDB, Spanner and F1, is what Google has spent nearly ten years building and is now migrating most of their internal use cases to. There’s a reason for that: what both Spanner and now CockroachDB provide is efficiency and freedom for developers.
Developers should not be spending time building application-level sharding for scale, or application-specific strategies for disaster recovery and automatic failover. While NoSQL databases ushered in solutions to scalability, they’ve also been a double-edged sword. Too much time has been spent working around the lack of transactional integrity or consistency. Obviously, what matters most is that developers are free to simply build their applications and trust that the database always does the right thing.
So, we’ve raised money, hired great engineers, and think we’re building the right product. We’re expecting to be around for a long time, but we’re also committed to open source, so CockroachDB is guaranteed to outlast Cockroach Labs (the company), if it comes to that. If that does happen, there will always be companies around to provide support. Percona and Cloudera come to mind.
Hopefully that helps answer your concerns.