Also,
I think an inspiring author(s) also need to consider the depth of the
coverage. For instance, in general, qmail processes are quite small in
size, but improperly used, they can be really bloated.
An example (which Dr. Bernstein has waned in qmail-smtpd man page in
subtle ways): qmail-smtpd in general is quite small - 1.5 MB or less.
However, if a newbie ISP admin comes in and slaps up a big rcpthosts
(rather than a morercpthosts in cdb format), then qmail-smtpd can be
as big as say 10MB or bigger, combined with high CPU utliization!
To understand this, one needs to read the source code of both
qmail-smtpd.c and control.c, and see what control_readfile() (a linear
search) does.
But, how many people would run into this, and whether it's fruitful to
cover such topics need to be carefully considered. Compromises have to
be made somewhere..
Regards,
Chin Fang
[EMAIL PROTECTED]
> > To set up qmail for a home system and to set it up for say millions of
> > active users require quite a different level of effort and
> > understanding. The latter of course is much more demanding. So, what
> > audience the book intends to address? Once the scope of the book is
> > defined, no one can come back and say "this is a lousy book, it
> > doesn't talk about this or that... etc".
>
> this is a good idea. i'd say the book should serve the maintainer of a
> collaborating group of five individuals, who share a computer for email-
> exchange, annotated for scalability problems where applicable.
>
> --
> clemens
>
