On Wed, 13 Oct 2004 21:26, Wouter Verhelst <[EMAIL PROTECTED]> wrote: > On Wed, Oct 13, 2004 at 01:05:26PM +1000, Russell Coker wrote: > > On Wed, 13 Oct 2004 07:29, Henrique de Moraes Holschuh <[EMAIL PROTECTED]> wrote: > > > The third is to not use LDAP for lookups, but rather cache them all in > > > a local, exteremly fast DB (I hope we are already doing that!). That > > > alone could get us a big speed increase on address resolution and > > > rewriting, depending on how the MTA is configured. > > > > I've run an ISP with more than 1,000,000 users with LDAP used for the > > back-end. > > Yes, but that was probably with the LDAP servers and the mail servers > being in the same data center, or at least with a local replication.
Yes. Local replication is not difficult to setup. > This is not the case for Debian; and yes, we already do have local fast > DB caches (using libnss-db). That's an entirely different issue. libnss-db is just for faster access to /etc/passwd. The implementation in Linux is fairly poor however, it doesn't even stat /etc/passwd to see if it's newer than the db. The performance gain isn't as good as you would expect either. -- http://www.coker.com.au/selinux/ My NSA Security Enhanced Linux packages http://www.coker.com.au/bonnie++/ Bonnie++ hard drive benchmark http://www.coker.com.au/postal/ Postal SMTP/POP benchmark http://www.coker.com.au/~russell/ My home page -- Please respect the privacy of this mailing list. Archive: file://master.debian.org/~debian/archive/debian-isp/ To UNSUBSCRIBE, use the web form at <http://db.debian.org/>. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
