Sometimes we see an increase of Mongo User Asserts on our Atlas hosted instances when we do run a specific tasks.
It’s not always reproducible and it’s still not much at roughly 1/sec and their support told us it should be investigated as it comes with an increase in CPU usage by 20% on the DB when the problem appears.
They told us User Asserts are user errors in queries/updates/other commands and that we should be seing error messages on our side. The problem is that we aren’t seeing anything in Node’s console.
Where would you start looking ? Have you ever faced something like this ?