bind 9 zones not loading reliably

[Mark_Andrews at isc.org]

> > We use a central dns repository to edit the zonefiles and then ssh the
> > edited zonefile out to the nameservers and hup the nameservers.  Since
> 
> Use rndc, not kill -HUP <pid-of-named>
> 
> 
> 
> > upgrading to BIND 9, we are seeing occassional failures where an
> updated
> 
> Do you have log entries indicating the failure?
> 
> > zonefile is not be loaded during the hup.  The hup loads other updated
> > zonefiles but misses loading one every now and then.  Nothing
> > consistent, different servers, different zonefiles.  The zonefile
> > timestamp and serial number are always the updated copy on the host,
> but
> >   the nameservice just ignores it.  Doing a touch on the file and
> > hup'ing the nameservice causes bind to load it.
> > 
> > Problem is very intermittent.  We are running hundred if not thousands
> > of zones on a nameserver and probably 20 zonefiles are updated daily.
> > 
> > Any thoughts?
> > 
> > Thanks,
> > Gary

	Well zone loads are performed in serial in the background.

	Mark
--
Mark Andrews, Internet Software Consortium
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: Mark.Andrews at isc.org