BIND pauses on loading large zones
Vinny Abello
vinny at tellurian.com
Wed Jun 16 00:02:48 UTC 2004
Hello all,
I've heard of this issue before and remember a discussion but no resolution.
I have a zone that is approximately 35MB in size. When I add it to the
named.conf file and do an rndc reconfig, the server stops answering queries
for probably around 10 seconds or more while it's loading that zone. Also,
if I modify it and do an rndc reload zonename the same thing happens.
I heard that this is because there is only one worker thread by default if
BIND can't detect more than one CPU. I have 4 CPU's in a system
(technically 2 with hyperthreading) and it doesn't appear to detect them. I
haven't tried running it in the foreground to see how many CPU's... but I
did try changing the startup option to include -n 4 and also tried -n4 as
well but it didn't make a difference, and the OS didn't indicate any more
threads were created than without that setting.
This is on Windows Server 2003 with BIND 9.2.4rc4.
Any takers? :)
Vinny Abello
Network Engineer
Server Management
vinny at tellurian.com
(973)300-9211 x 125
(973)940-6125 (Direct)
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