How many resource records can be supported by a single zone by BIND 9 ? Does anyone know if such a limit exists?
Kevin Darcy
kcd at daimlerchrysler.com
Wed Mar 29 23:34:06 UTC 2006
Offhand, I don't believe there are any arbitrary limits. AXFRs are sent
as a sequence of "messages" over the TCP pipe so for a huge zone it
could just sit there and transfer all day. The only limits would be
"soft", resource/capacity/convergence-speed limits, e.g. zone load time,
virtual memory usage, AXFR duration, AXFR success ratio (given that
sometimes connections drop, nameserver processes are restarted, or
whatever), and things of that nature. Note that if the zone doesn't
change very frequently, IXFR is going to provide one a lot more
replication headroom than AXFR.
- Kevin
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