Thanks a lot for ypur feedback !
And welcome to the forum. Please don't hesitate to introduce yourself on the dedicated thread
I am close to solve @steeve_kevin's issue due to curl subtilities in a windows environement...
I don't know exactly how much memory the cron daemon uses but I think it is really light on our server. That might depend on everyone's context.
Since we can filter subtables, it is lighter than ever. If one su mission occurs thé thé last time, only one submission is downloaded.
Probably... PostgreSQL can notify events and listen to notifications but I am not sure it could help to triggering central2pg.
Maybe pl-pyodk in a web context and a tool like https://github.com/crunchydata/pg_eventserv would be better.
But it would need some modification on Central.