[Pdns-users] MASTER/SLAVE problems

Martin Kuchar lists at nss.wproduction.cz
Fri May 28 10:06:46 UTC 2004

If i'm right, the master.slave communication works like this:

1. if serial is changed on MASTER, MASTER sens notification to SLAVE
2. SLAVE received this notification and ask MASTER for data about domain (i
thing serial#)
4. because of this, if asked domain is cached with old serial, AXFR will not
be processed

If this is how it works, it is big fail. It is needed to CLEAR cache on
MASTER for domain BEFORE sent the notify.

Please reply. This is a BIG problem...

Martin Kuchar

> -----Original Message-----
> From: pdns-users-bounces at mailman.powerdns.com 
> [mailto:pdns-users-bounces at mailman.powerdns.com] On Behalf Of 
> Martin Kuchar
> Sent: Thursday, May 27, 2004 11:08 PM
> To: pdns-users at mailman.powerdns.com
> Subject: [Pdns-users] MASTER/SLAVE problems
> Maybe i don't understand the background of master/slave operation.
> I update serial for supernews.cz on server 1, whis is master. 
> Server 1 sends
> notfication to server 2, which is slave. Server 2 claims, that domain
> supernews.cz have low (still the old) serial.
> Play here a role cache on server 1 ??? In cache is the old serial.
> Do i need to "pdns_control purge supernews.cz" and then 
> "pdns_control notify
> supernews.cz" (because server 1 dont send another 
> notification after cache
> purge) ??
> best regards,
> Martin Kuchar
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