email builder wrote:
We have much the same system setup and problems described here: http://thread.gmane.org/gmane.mail.imap.courier.general/21782
Have you tested with filesystems other than ReiserFS? Have you tested mounting the FS with the "noatime" option?
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).
How many users are connecting to the NFS client host at the same time? If you run 'ps ax' on that host, you should see ~300 processes in R or D state. What are they?
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....?
"sync" is off by default, and should remain so. ------------------------------------------------------- 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
