Large number of zombie proccesses not reaped by NCPA

[DrewStratford]

I had an instance of ncpa that got into a state where it had a large amount of zombie processes that were not being reaped.

I've attached some logs, which seem to suggest some python threads not exiting properly.
ncpa-logs.txt

NCPA version is 3.1.1
OS is Ubuntu 22.04.5 LTS.

[ne-bbahn]

Thank you for reporting this. I'll begin investigating as soon as I can.

[timcanty]

We have also had two ubuntu hosts have the same, we got to about 200+ on both boxes, stopping the service didn't fix, and had to reboot the vms. Only recently started happening.