nsd users - Sep 2022 - nsd process restarting

Hi,

I'm using nsd 4.6.0 on ubuntu 20, latest patches installed (compiled
from source). I see that with the option 'server-count=2' the 2
"server" processes reguraly restart (about every second), the vm has 2
cpu's btw. When I decrease it to server-count=1, the "server"
process
(not the main, not the xfr) still restarts but less frequently.
The server is being used as an authorative-only server and nothing is
found in /var/log/nsd/nsd.log.?
NSD is running under systemd, with the option "--enable-systemd" set
during compile time (and "Type=notify" in the systemd service file)

Is it normal to see this process restarting that often? Can I configure
a setting to find something in the logs concerning this?

With friendly regards,
Franky
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On 14/09/2022 15:02, Franky Van Liedekerke via nsd-users wrote:

Hi Franky,

Are any of the zones served by this instance configured as secondaries, 
and receiving frequent updates via XFR? If so, then it's normal to see 
the server processes restart.

Regards,
Anand
> I'm using nsd 4.6.0 on ubuntu 20, latest patches installed (compiled
> from source). I see that with the option 'server-count=2' the 2
> "server" processes reguraly restart (about every second), the vm
has 2
> cpu's btw. When I decrease it to server-count=1, the "server"
process
> (not the main, not the xfr) still restarts but less frequently.
> The server is being used as an authorative-only server and nothing is
> found in /var/log/nsd/nsd.log.
> NSD is running under systemd, with the option "--enable-systemd"
set
> during compile time (and "Type=notify" in the systemd service
file)
> 
> Is it normal to see this process restarting that often? Can I configure
> a setting to find something in the logs concerning this?
> 
> With friendly regards,
> Franky