[PVE-User] Watchdog in containers?

Marco Gaiarin gaio at sv.lnf.it
Fri Jan 10 15:39:47 CET 2020


> Clearly, i've to find the guilty process (probably it is Samba) but in
> the meantime... there's some sort of 'watchdog' for containers?
> I can safely install 'watchdog' on containers, disable /dev/watchdog
> and configure to do a reboot if load go too high? eg:
> 	max-load-1             = 24
> 	max-load-5             = 18
> 	max-load-15            = 12

I reply to myself. Yes, you can install 'watchdog' on containers and
use it, but you have to take care the fact that load are 'host load'
and there's no a real 'iron' reboot, so container with:

	max-load-15            = 12

with a load-15 of 13 reboot, but very probably when they come back, load-15
is still 13. ;-)
I've had a container that do two reboots in a row.


Now i'm testing memory allocation in watchdog (load go high because of
memory exaustion), but indeed with some glitches use of watchdog in
container is doable. ;)

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