Re: Non-existent zone file

On Thu, Dec 3, 2009 at 12:24 PM, Rich Rumble <[email protected]> wrote:
> We were inundated with request for a domain we didn't have in the cdb,
> and the NS's became very sluggish, but bandwidth wasn't too high... so
> perhaps tinydns was dropping the requests, but the process was clearly
> the highest in use in top for that period. We sniffed the requests and
> saw 99% were looking for a name we didn't have, a whois indicated that
> someone pointed the domain at our NS's. Perhaps it was just ironic
> timing... we figured we'd create a zone and point it to maintenance
> page, once we did the load went way down and so to did the
> connections, were still trying to get a better understanding of what
> happened, were not certain our actions of creating the file and
> make'ing the cdb were the actual fix or if it just subsided at that
> same time.
> -rich

Out of curiosity, how big is your data.cdb?

Has anybody done any formal analysis as to how much performance
degrades as the cdb file grows?  Or the difference between searching
the cdb for records that do not exist vs ones that do?