30,000+ domains - nameservers on knees

[Christopher Kings-Lynne]

Ooops!  I forgot I wasn't using pine and accidentally sent my post
prematurely!  Here is the complete post!

I'm not interested in starting a flamewar, but perhaps try installing
FreeBSD on your secondary, rather than Linux.  FreeBSD runs really well
under a huge load, and seems, to me, to be more stable than Linux.  (It's
what Yahoo uses)

I noticed when i was configuring bind for the first time, that it recommends
using a hierarchial setup of zone files, because many operating systems will
start to cry with 30000 files in a single dir.

If the load is unavoidable, then try this URL:

http://www.isc.org/products/BIND/contributions.html

It has a link to some load-balancing DNS stuff...  Or you could try an
OS-based load-balancing scheme.

Other than that, I have no idea - I'm new to DNS myself.

Chris

<gasmicgnome at my-deja.com> wrote in message
news:847v8b$7eo$1 at nnrp1.deja.com...
> Hi,
>
> We have two nameservers authoritative for 30,000+ domains: A Cobalt
> RaQ2 primary and a Gateway PC P233 secondary.  Both machines run RH
> Linux with kernel 2.0.34. The primary runs 8.1.2-T3B and the
> secondary 8.2.2-P5.
>
> Perhaps unsurprisingly the secondary regularly seg-faults, usually
> during a series of "non-authoritative" named-XFERs. I've whittled out
> most of the lamers but it's still happening. Surprisingly the RaQ2 has
> never needed a reboot (Our other RaQ2s with POP3/http are segfaulting
> all over the place).
>
> named on both machines regularly consumes 99% of the CPU. During
> this time the nameservers simply stop responding to queries (dig,
> nslookup etc). The outages usually last a few minutes.
>
> What is named doing during these outages? This is probably a daft
> question but is there an upper limit to the number of domains named can
> handle?
>
> Apart from upping RAM/CPU spec is there a less intensive mode I can
> run both nameservers in that will take the heat off?
>
> Cheers
> Gnome
>
>
> Sent via Deja.com http://www.deja.com/
> Before you buy.
>
>
>