a lot of transfer when slave start

[Phil Mayers]

On 05/03/13 11:39, Felix New wrote:
> Hi all,
>
> we have one master server and several slave servers with Bind 9.9.2-P1,
> and service for about 50K zones.
>
> i shutdown one slave,start it, then a lot of transfer between the slave
> and server:
> log segment(rand zone for test):
> ***
> 05-Mar-2013 18:36:18.675 general: info: zone 6x3he.com/IN

It's a bit tangential, but it looks like you're creating zones for 
blocking malware/badware. Are you aware of RPZ, which may (or may not) 
meet your needs, but more relevant puts the entire blacklist into a 
single zone?

As Chris says - check the slave is actually writing the zone to a file, 
that it's present on-disk and can be read. At worst, bind should be 
doing a SOA query and IXFR when it restarts (but this will still be 
slow-ish for 50k zones...)