Is that a use case they are really targeting though? Their splash page mentions big data with model generation and genomic sequencing as examples. I can really only speak to genetic sequencing. The IO pattern for these workflows is almost all streaming reads/writes. Random access takes too long when you are reading/writing 100-500GB files.

Postgres doesn’t like running in NFS either to be fair.

Yes, JuiceFS is not a good choice for PG, unless if you don't care the performance.

One interesting use case is the backup of MySQL [1].

[1] https://juicefs.com/docs/cloud/backup_mysql_in_juicefs/

> Postgres doesn’t like running on NFS either to be fair.

https://news.ycombinator.com/item?id=19119991

Is that still the case after this? Or is it tribal knowledge?

postgres + rocks fdw would be a more interesting test case (or any LSM DB)