You only need a distributed OLTP database once you scale e.g. you have customers all over the world or if you are in a space the requires it like gaming, fin/tech, gambling, etc.... I think the reason they are gaining popularity is because the barrier to entry has been lowered both technically and financially. CockroachDB and Yugabyte for example are open sourced have a good entry point for their managed solutions and are mostly compatible with PostgreSQL. The large cloud providers are also offering solutions that let you incrementally scale to a distributed DB as you need it.
I have worked in Fintech where we needed a distributed database, as startup where we grew to the point of needing one, and am hoping to grow what I am currently working on to the point of needing one but we are not there yet.
greyzor7
really depends on the scale of your platform, data & transaction volume - such ACID distributed dbs would be handy for big fintech corporations. In my case, I just need a simple managed postgres for my launch platform (https://microlaunch.net), it's still transactional, but the platform isn't write intensive
avinassh
Does the report name these databases? I am curious to know about popular and open source distributed transactional database
I have worked in Fintech where we needed a distributed database, as startup where we grew to the point of needing one, and am hoping to grow what I am currently working on to the point of needing one but we are not there yet.