multi-master and ixfr-from-differences: failed: new serial (2010060900) out of range"
Mark Andrews
marka at isc.org
Fri Jun 25 07:49:52 UTC 2010
In message <20100625072717.GC18513 at fantomas.sk>, Matus UHLAR - fantomas writes:
> > > On 10.06.10 09:34, Matus UHLAR - fantomas wrote:
> > > > Jun 9 23:11:58 mydb02 named[1427]: general: error: zone ./IN: ixfr-fro
> m-differences: failed: new serial (2010060900) out of range [2010060901 - 415
> 7544547]
>
> > In message <20100625060415.GA18513 at fantomas.sk>, Matus UHLAR - fantomas wri
> tes:
> > > We get these quite often. Any idea where could be the problem?
>
> On 25.06.10 16:10, Mark Andrews wrote:
> > Turn off try-tcp-refresh.
>
> Is there better documentation for the try-tcp-refresh option?
> While I have no reason not to trust you, I would like to understand the
> problem itself. Is looksa likt the tcp refresh would transfer the zone
> independently on SOA serial arithmetics.
With "try-tcp-refresh yes;" the udp retries fail to the master that
is behind. Named does a axfr from that master and you get the message
you see.
The following may also help as it turns on SOA before AXFR for the
ixfr-from-differences case. This has not been tested.
Mark
Index: lib/dns/zone.c
===================================================================
RCS file: /proj/cvs/prod/bind9/lib/dns/zone.c,v
retrieving revision 1.540.2.26
diff -u -r1.540.2.26 zone.c
--- lib/dns/zone.c 2 Jun 2010 01:00:28 -0000 1.540.2.26
+++ lib/dns/zone.c 25 Jun 2010 07:47:41 -0000
@@ -11946,7 +11950,10 @@
} else if (DNS_ZONE_OPTION(zone, DNS_ZONEOPT_IXFRFROMDIFFS)) {
dns_zone_log(zone, ISC_LOG_DEBUG(1), "ixfr-from-differences "
"set, requesting AXFR from %s", master);
- xfrtype = dns_rdatatype_axfr;
+ if (DNS_ZONE_FLAG(zone, DNS_ZONEFLG_SOABEFOREAXFR))
+ xfrtype = dns_rdatatype_soa;
+ else
+ xfrtype = dns_rdatatype_axfr;
} else if (DNS_ZONE_FLAG(zone, DNS_ZONEFLG_FORCEXFER)) {
dns_zone_log(zone, ISC_LOG_DEBUG(1),
"forced reload, requesting AXFR of "
--
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742 INTERNET: marka at isc.org
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