Re: slow dnsserver with Solaris 2.5.1

From: David J N Begley <>
Date: Fri, 14 Nov 1997 13:16:40 +1100 (EST)

On Fri, 14 Nov 1997, SO Kwok Tsun wrote:

> You are right. After uncomment this line and restart nscd, it works
> much better now. Just wonder why nscd affect that much on the
> performance.

Apparently nscd serialises DNS queries thus slowing everything down when
an application (such as Squid) hits the resolver hard. You may notice
something similar if you run a log processor executing many DNS resolver
queries - the resolver starts to slow.. right.. down.. . . .

> So, what should be the value of memory_pools for Solaris
> 2.5.1? Will Solaris compete with squid for the caching?

It's not so much a Solaris thing as it depends more on how much memory you
have available; I'm running with the default (which according to the
config file is "on") because I have half a gig of RAM.


Received on Thu Nov 13 1997 - 18:25:32 MST

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