Hrm, not sure why list posts are taking so long, so I am, um, cross-posting... the original message was on this list anyway, and maybe if I'm lucky this will post within an hour...
> We have much the same system setup and problems described here: > > http://thread.gmane.org/gmane.mail.imap.courier.general/21782 > > Briefly, mail spool is mounted over NFS, everything runs smoothly until > we > turn IMAP on and server load goes off the scale (NFS client load 300, NFS > server load 10, with server in wait about 80% of the time). There are no > discernable errors in our logs, and everything still "works", albiet at a > snail's pace. > > Unfortunately, there are no responses to that thread. I am wondering if > anyone has any pointers about where is a better place to look/ask/rtfm. > From > all I have read, Courier itself should not have any locking or other issues > over NFS, and in fact, before we rolled out our full user base to NFS, we > tested with a few users, and IMAP was running just fine over NFS. > > Once we moved everything to NFS, however, with at least 10's of users > checking their mail regularly at most times, server load has gone to hell > in > much the same way detailed in that thread. I am guessing it is more of a > NFS > configuration thing, or possibly something with our file system on the NFS > server (reiserfs and RAID 5), but I'm a little wet-behind-the-ears on that > front, so even some baby hand-holding by someone who has the time and > patience would be highly appreciated. I mean, I don't even know if the > "sync" option for our mail spool NFS mount is best turned off....? > > Although it is curious that our MTA (postfix) does not incur any load hit > at all, and we are delivering hundreds of mails an hour at least. Should > Courier IMAP be that much more of a heavy hitter?? > > I'd be happy to provide more details, but the above link should be good > enough I think. > > TIA!!! __________________________________ Yahoo! Mail - PC Magazine Editors' Choice 2005 http://mail.yahoo.com ------------------------------------------------------- This SF.Net email is sponsored by: Power Architecture Resource Center: Free content, downloads, discussions, and more. http://solutions.newsforge.com/ibmarch.tmpl _______________________________________________ courier-users mailing list [email protected] Unsubscribe: https://lists.sourceforge.net/lists/listinfo/courier-users
