Operator: Detected unclean shutdown - mongod seems never to shutdown gracefully

[steevej (Steeve Juneau)]

If it works for 10k but not for 100k, I would tend to assume that the termination logic is implemented correctly.

Note that 100k collections is at least 200k number of files. And 1 more files per index per collection. It is quite possible that the problem is related to something taking too much time to do. The following makes a lot of sense

@Yilmaz_Durmaz

your problem can also be for the default grace period being 30 seconds

so is the proposed idea:

@Yilmaz_Durmaz

increase this with terminationGracePeriodSeconds:60

From k8s’ documentation:

Once the grace period has expired, the KILL signal is sent to any remaining processes

Receiving the KILL signal with generate

@John_Moser1

unclean shutdown

and the KILL signal is sent to process that are still running after terminationGracePeriodSeconds, like it might be the case when trying to flush and close 200k files.