On Mon, Jul 19, 1999 at 12:55:19PM -0700, Jason Thorpe wrote:
> On Mon, 19 Jul 1999 20:44:18 +0100
> Dominic Mitchell <dom.mitch...@palmerharvey.co.uk> wrote:
>
> > Lovely. Sounds like a much better way to do the Solaris/Linux (and
> > NetBSD?) /etc/nsswitch.conf stuff. On Solaris at least, this is
> > implemented using masses of weird shared objects...
>
> The plan for NetBSD is that things will also be handled with dynamic
> modules, but those dynamic modules will be glued into a `nscd'[*] (if you
> use Solaris, you're familiar with the name :-).
>
> [*] We are planning on not having all of the problems that the Solaris
> nscd has, and that people often complain about.
>
> This will allow libc to simply make a call to nscd (or fallback onto
> traditional `files' lookup), and nscd will handle all but the `files'
> case. This allows system-wide caching, and puts all of the complexity
> in one place.
How will you get around one of the major bugbears of the Solaris
implementation, that is nscd serialises access to these databases? I
understand that the caching will allow you to return most responses
quickly, but on a busy system (web cache doing dns requests?) it might
well bog down...
--
Dom Mitchell -- Palmer & Harvey McLane -- Unix Systems Administrator
In Mountain View did Larry Wall
Sedately launch a quiet plea:
That DOS, the ancient system, shall
On boxes pleasureless to all
Run Perl though lack they C.
--
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