(Illustration by Gaich Muramatsu)
I have 2 more informations that may be usefull to the solve : 1 - 60000 Mailboxes 2 - We use procmail with separed dirs for each letter, like : /var/spool/mail/j/u/jungle /var/spool/mail/r/o/rox Changes anything? > jungle_at_sti.com.br said: > | We have here a mail system like this : > | 1 NFS Server (PII400 RAID5 and 128ram) > | 2 NFS Clients (pop/smtp) (PII900 SMP with 512Ram) > | > | The clients mounts the /var/spool/mail partition of the server, and > | uses it for pop (cucipop) and smtp (sendmail/procmail). > | > | I'm considerin the use of coda, for performance reasons, and replicant > | servers. > | > | My performance in using that configuration will be better with CODA? > | I'm seeing to many different oppinions about it, on the list. > > Well, the normal large unix mail files will make you hate life. > Although Coda will give local-disk read access once the file is fetched, > because of the write-write sharing and the fact that Coda caches on > a whole file basis, and needs to refetch the complete file everytime > it is modified on another machine, it won't be blazingly fast. > > Besides you'll have 100's of file conflicts before you can say > ....that's fast... > > There is no file locking, and even if there was, your coda clients > might decide it's a much nicer life being disconnected from the > overloaded servers and happily continue working without the pop-clients > seeing new email arriving. > > On the other hand, there is the maildir format, an nice way of storing > mail in separate, uniquely named files, which is used by qmail. That way > there will be no `write-write' sharing on the filedata, and because of > how status flags are handled, any conflicts resulting from network, server > and client failures are in most cases resolvable directory conflicts. > (I think I got this url from the codalist one day: > ftp://koobera.math.uic.edu/www/proto/maildir.html) > > If you had something like a 10-15 pop-users setup, it could be worth a > try. If you really need two 900MHz dual processor boxes to keep up with > the incoming traffic, no not yet. Wait until someone has actually tried > and proved it to work on a small to medium scale setup. > > Jan > >Received on 1999-04-22 18:37:45