I see the same on my windows nodes.
Now I set retain.concurrency: 1, lazy FW false and startup scan true for one of the four nodes. Let’s see if it will end up again at the mentioned 100% CPU core use.
BTW, all of a sudden (within 2 hours after the restart) the node deleted 300+ GB of trash out of 1,2TB, which was there for more than a week.
So far it is ok, even though I see two BF in the retain directory:
Changing “retain.concurrency” to 1 seem to have fixed the issue. It’s almost 24 hours, and the CPU load has not increased as before (after around 12 hours).