how many query support bind 9.2.4

[Ladislav Vobr]

Alberto L Garcia wrote:
> we have 2  DNS bind 9.2.4rc4 in Solaris 9 and received 6382291 for hours for 
> server, and server in very slow for resolver name and update zone. Each 
> server have 2 processor(used 60%) and 2 GB memory . The bind 9 support all 
> this query for hours?

do you mean 6382291 per hour, which is around 1772 per second. Is it 
caching server or authoritative only or both? If it is both you should 
really split it into two, performance will be better, security wise it 
is better and availability too. Also I hope you didn't keep the default 
1000 for recursive-clients queue if you have so much recursive traffic, 
put at least 2 or 3 times more, if you can afford it. You should run 
some log analyzers scripts to check your traffic regularly, because bind 
doesn't help you much with reporting unreachable servers, or possible 
flooders, you have to help it yourself. Both of them (unreachable 
servers, flooders) having serious impact on a recursive server, when 
handling so many requests. You will be surprised how many weird and 
useless traffic you might be receiving.

ps. why you run 9.2.4rc4 i guess 9.2.3 might be better choice for you.

Ladislav