Delayed Zone Transfers?

[Jiann-Ming Su]

> From: Jiann-Ming Su <su_js1 at yahoo.com>
> To: "bind-users at lists.isc.org" <bind-users at lists.isc.org>
> Cc: 
> Sent: Thursday, August 2, 2012 5:38 PM
> Subject: Delayed Zone Transfers?
> 
> What would cause a delay in zone transfers?  The notify go out immediately when 
> the serial number changes on the master, but some of the secondaries can take up 
> to 10 minutes before initiating the zone transfer.  Also, even after the zone 
> has been transferred, the secondary will not immediately serve out the new 
> data.  I'm running 9.8.1-P1, soon to be 9.8.3-P2.  Thanks for any insights.
> 

Here's an example of the zone file being updated, but BIND not serving out the new data.

Running dig locally:
# dig @localhost myhost.uts-sa.mydomain.ddns

; <<>> DiG 9.8.3-P2 <<>> @localhost myhost.uts-sa.mydomain.ddns
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 36470
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;myhost.uts-sa.mydomain.ddns.    IN    A

;; AUTHORITY SECTION:
uts-sa.mydomain.ddns.    86400    IN    SOA    dhcp-admin.service.mydomain.net. hostmaster.mydomain.net. 2010585436 7200 1800 604800 86400

;; Query time: 6 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Mon Aug  6 11:53:45 2012
;; MSG SIZE  rcvd: 118


Contents of the local zone file:
# less ddb.uts-sa.mydomain.ddns
$ORIGIN .
$TTL 86400      ; 1 day
uts-sa.mydomain.ddns       IN SOA  dhcp-admin.service.mydomain.net. hostmaster.mydomain.net. (
                                2010585437 ; serial
                                7200       ; refresh (2 hours)
                                1800       ; retry (30 minutes)
                                604800     ; expire (1 week)
                                86400      ; minimum (1 day)
                                )
                        NS      dns1.mydomain.net.
                        NS      dns2.mydomain.net.
$ORIGIN uts-sa.mydomain.ddns.
$TTL 7200       ; 2 hours
myhost                  A       10.231.24.252
                        TXT     "00e9e034c52bb28952e1b7192519421cc5"


The SOA that it's serving is not the newest one.