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Re: Problems with scheduler
On Fri, 21 Apr 1995 brtmac@ksu.ksu.edu wrote:
> I'm curious about one aspect of zmailer's performance. We have a
> system with >11,000 entries in the passwd file. We are running
> sendmail 8.6.12 on a SS5/70. sendmail is currently able to handle the
> load, but until we upgraded to the SS5 from an IPC stock sendmail
> wasn't able to. I was able to make sendmail keep up with the load by
> replacing the getpw routines with routines that accessed a gdbm file
> with the passwd information stored in it.
>
> How does zmailer access the passwd file? Is anyone running zmailer on
> a system with a large passwd file? If not, how do people deal with
> thousands of mailboxes?
The same system which processes the 70k msgs also has 6000-some passwd
file entries. ZMailer has caching built into the database stuff, and it
considers the passwd file a database.
I had to turn off this caching, though, to ensure that new passwd file
entries got used (we update the passwd file at arbitrary times).
I think that our passwd file is a pretty permanent part of the OS disk
cache...
-Andy
Andy Poling Internet: Andy.Poling@jhu.edu
UNIX Systems Programmer URL: http://jhunix.hcf.jhu.edu/~andy/
Homewood Academic Computing Voice: (410)516-8096
Johns Hopkins University (Balto, MD) UUCP: uunet!mimsy!jhunix!andy