Notify "storms"

[Dave Sparro]

On 1/18/2010 4:27 PM, Todd wrote:
> Good day all,
>
> We've run into a problem with our DNS servers.  The way we update our
> masters is via a CVS Checkout and reload of the zones modified.
> Sometimes though, we need to reload the whole config for big
> changs/etc.  When that happens, all 6 masters (I know, we're getting
> rid of some) send notifies to all 80+ (I know, we're getting rid of
> some) slaves for all 1800 zones.  This causes all the slaves to verify
> all 1800 zones on 6 masters, which then delays the changes we made
> from actually getting to the slaves.  Right now it's about 2.5 hours
> for all slaves to do all zones.
>
> We would like to make this better.
> Can anyone help with ideas on this?  Are we missing something obvious?
>    

In that situation I'd consider using CVS on all of the servers to 
maintain the DNS data.
Just make all of the servers masters, and forget about slaves.

-- 
Dave