I have users with 300-400 messages per folder, without a problem. One thing you
want to be sure of is that your courier server's NFS is good. We had a bunch of
problems intially because of older 2.2 linux kernels had really crappy NFS
support. Now we're using NFSv3 with a 2.2.18pre kernel, and everything is
running
well. Make sure you mount the NFS volume with the option sync. This will make
the client wait for the NFS server on I/O. If you don't, you'll get a lot of
D-state process on loaded servers.
To my knowledge Netapp uses a modified BSD kernel. It's super fast.
-sb
Jason Haar wrote:
On Sat, Dec 02, 2000 at 01:14:43PM -0800, Scott Bisker wrote:
I'm currently using courier for 100,000+ users. I have several linux boxes
load balanced, that are mounting several netapp filers. All of the machine
configurations are identical. The network is all Gig-E. I don't have exact
numbers, but the mail servers send/receive several gigs of mail a day. The
great thing about courier is its design to work with NFS(no locking problems)
with delivery.
How do you find the performance of maildir-style mailboxes?
By that I mean do you have users with 500-1000 messages per folder, and how
does netapp's FS handle that? There was always the arguement by people like
Mark Crispen that Unix FS is just too bl**dy slow at those kinds of numbers
and that's a prime reason not to use maildir. I'm using reiserfs (which is
specifically designed to be happy at 1000's files/dir) and I'm wondering how
Netapp FS is...
Unix/Special Projects, Trimble NZ
Phone: +64 3 9635 377 Fax: +64 3 9635 417
13 messages in net.sourceforge.lists.courier-usersRe: [courier-users] Anybody using cou...
