The cells at umd.edu with over 10,000 passwd file entries use Hesiod to
improve the performance over flat files. Linking programs like sendmail
and ls with -lhesiod can make a very large difference.
wam.umd.edu: 31150
glue.umd.edu: 10105
Randall
On Thu, 14 Sep 1995, Chris Cowan wrote:
> >>>>> "Chuck" == Chuck Lever <[EMAIL PROTECTED]> writes:
>
> Chuck> at UM ITD we have a ~42,000 entry passwd file, and most unices search
> Chuck> it linearly. although there is a copy of /etc/passwd in AFS, for
> Chuck> heavily-used machines we copy the AFS version into a local UFS.
>
> We have 7342 active entries in our AFS Kas. The actually database is
> up to uid 13300. We've added id's sequentially for about 5 years, so
> there are probably about 5-6k "holes", in the database.
>
> Chuck> some machines on campus use a dbm, and we're working on another
> Chuck> database-style method for speeding up the search for some of the
> Chuck> heavily-used machines.
>
> Chuck> Chuck Lever - http://www.umich.edu/~cel
> Chuck> UM ITD Login Server Team
>
> In our case, we mainly run AIX. Fortunately, it has a mkpasswd command
> to hash /etc/passwd into a db, so that lookups are much faster.
> We do have machines on sites with all users in the /etc/passwd and this
> definately helps.
>
> Chuck> Ozra says:
> Chuck> < Dose any body have more than 10000 users with running AFS and using
> Chuck> < password dbm successfully?
> Chuck> <
> Chuck> < Is it possible to run AFS with 20000 users using dbm password?
>
> We are moving quite rapidly to DCE/DFS and our DCE registry is already
> larger than its AFS counterpart. Our plan is to investigate the
> implications of this. We have looked at the paper you guys did on
> large DCE registries, this was a very good start. (Presently, it
> seems that the Registry won't be a problem. However, I'm not so sure
> about the CDS! But, that's another issue)
>
> --
> Chris Cowan
> ISSC (SER AFS/DCE/DSM Support)
> -------------------------------------------------------------------------
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