On Sat, 21 Apr 2001, Pablo Manalastas wrote:
..
> glibc-2.1/2.2 allows Solaris-style "db" files for storing "passwd"
> and "shadow" entries. In your /etc/nsswitch.conf file, just
> put the entries
>
> passwd db files
> shadow db files
>
> Then you need db-ized versions of /etc/passwd and /etc/shadow.
> You also need /lib/libnss_db.so*. Fortunately, the latter comes
> standard with glibc-2.1, but as an add-on with glibc-2.2.
>
> > really asking for trouble. Intel just doesn't scale.
>
> I think all that is needed is for someone to give linux-2.4.X
> with glibc-2.2.2 a try with >= 20K users (on intel), before
> we come to this sweeping conclusion that it does not scale.
Let me rephrase that: "Solaris with shell just doesn't scale." If you are
planning to provision tens of thousands of users on a single box, WITH
SHELL, you're really asking for it. And if it's true for Solaris, I won't
doubt that it's true for Linux. In any case, no enterprise mail solutions
use something as simple-minded as putting 50K entries into /etc/passwd.
Actually things might work: I mean mozcom does 40K+ users on a single box,
with /etc/passwd. But I don't see it growing even 50% and still using this
solution. So that's why I say it won't scale. You might handle 20K
users. But what about 100K? 200K?
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