[pipe_connector]

It's fair to distrust something because you were burned by using it in the past. However, both the examples you named -- Postgres and FoundationDB -- have had similar concurrency and/or data loss bugs. I have personally seen FoundationDB lose a committed write. Writing databases is hard and it's easy to buy into marketing hype around safety.

I think you should reconsider your last paragraph. MongoDB has a massive community, and many large companies opt to use it for new applications every day. Many more people want to use that product than FoundationDB.

[daniel-grigg]

Can you elaborate on why ‘many large companies’ are choosing MongoDB over alternatives and what their use cases are? I’ve been using Mdb for a decade and with how rich the DB landscape is for optimising particular workloads I just don’t see what the value proposition is for Mdb is compared to most of them. I certainly wouldn’t use it for any data intensive application when there’s other fantastic OLAP dbs, nor some battle hardened distributed nodes use case, so that leaves a ‘general purpose db with very specific queries and limited indexes’. But then why not just use as PG as others say?

[azurelake]

I’d be curious to hear more detail about the FoundationDB data loss issue that you saw? Do you remember what version / what year that you saw it?