On Thu, 30 Oct 2003, Yanik Charbonneau wrote: > 3 Linux servers serving imap/pop for 50000 (1000 active) users from nfs > mounted homes. Using mbox format. Is this possible? Apperently not!
It's supposed to be possible; however, some NFS implementations allow the buffer cache to get out of sync with the cached version of the inode. > - Fatal mailbox error ... Unexpected changes to mailbox ... > - Fatal mailbox error ... Mailbox shrank from ### to ### This type of error happens when you get cache synchronization problems. Also, there's something else you should check. If you use the /var/spool/mail directory, make sure that it is protected 1777 and not 775. If it is 775 then imapd can't lock the mail file against mail delivery. That'll cause those crashes (and worse) on a regular basis. Most people do not use NFS as a file store for IMAP. If you think about it, it doesn't make any sense to do that; it's using a distributed data protocol to supply a distributed data protocol with data. You are better off having the IMAP server run on the computer that hosts the data, and use a mailbox format (such as mbx) that has better locking and permits shared write access. -- Mark -- http://staff.washington.edu/mrc Science does not emerge from voting, party politics, or public debate. Si vis pacem, para bellum.
