[nsd-users] Patch: multi-master-check

manabu-s at iij.ad.jp manabu-s at iij.ad.jp
Wed Aug 24 10:53:01 CEST 2016


Hi Wouter,

Thank you merge the patch.
but I found a mistake that not tried full zone transfer for a expired zone.

this problem patch is below

xfrd.c
-               if(zone->multi_master_first_master == zone->master_num && zone->round_num > 0) {
+              if(zone->multi_master_first_master == zone->master_num && zone->round_num > 0 && zone->state != xfrd_zone_expired) {


Best regards,
Manabu Sonoda


On 2016/08/05 20:24
W.C.A. Wijngaards <wouter at nlnetlabs.nl> wrote:

> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA256
> 
> Hi Manabu,
> 
> On 05/08/16 08:07, manabu-s at iij.ad.jp wrote:
> > Hi,
> > 
> > I wrote a patch to try transfer from all masters when use multi
> > masters for slave zone.
> 
> Thank you for the patch!  I have incorporated it into the codebase.
> 
> Small changes I made to the patch: I removed the configure time
> option.  I kept the #else part in line 286 of the patch (about 1860 in
> xfrd.c) to keep non-multi-master-checks the same.
> 
> The 4.1.11 release is in RC stage, so this feature has to wait for a
> later software release.
> 
> Best regards, Wouter
> 
> > 
> > https://gist.github.com/mimuret/e68b57561dc76214555c0d9718e9ce4d
> > 
> > If master servers are not synchronise master zone, Sometime, slave
> > zone not updated max serial zone.
> > 
> > For example: Slave:      serial 100 Master1: serial 200 Master2:
> > serial 300
> > 
> > First time, slave tries transfer from Master1, Slave update serial
> > 200, and not try Master2.
> > 
> 
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-- 
Manabu Sonoda <manabu-s at iij.ad.jp>
Internet Initiative Japan Inc.


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