[nsd-users] make nsdc more reliable for restart

Anand Buddhdev anandb at ripe.net
Fri Aug 10 14:12:44 UTC 2012

On 10/08/2012 14:55, Alf Schlichting wrote:

Hi Alf,

> while running nsd as a secondary nameserver with +1000
> domains we discovered that the default nsdc(8) was
> not able to reliable restart nsd.
> Reason I think is that, by using the PID file, it sends
> it's signal to only 1 of the default 3 processes.
> Afterwards it only checks against this 1 process while 
> the other 2 still may be running causing trouble on
> start up.
> The patch below fixes it for us (was tested in a lab
> environment with 10.000 domains).

The "pkill" command is not available on all systems. Linux distros ship
with it these days, and MacOS X introduced it with Mountain Lion (10.8),
but it may not be available on other systems. Therefore your patch is
not portable.



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