BIND 9.2.3, large zone xfer and 100% CPU Utilization

[Alex Rainchik]

Hello,

We are using BIND 9.2.3 on Solaris8, transfering ~45Mb zone from mail-abuse.com
every three hours, as they don't support IXFR feature. The issue we have is that
at the end of the transfer "named" goes berserk and CPU utlilization goes trough
the roof, up to 100% for about 5-10 minutes. 

During those 5-10 minutes "named" does not respond to any queries, "rdnc status"
does not work either. It's the only zone xfer running at that time....

Just wondering if it's a bug or a feature? 

Thank you!