On Thu, Jul 31, 2008 at 2:15 PM, Thomas Hummel <[EMAIL PROTECTED]> wrote: > Every friday a message (no attachement, decent size) is sent to all users : in > such circumstances (but only sometimes, not every time : let's say half the > time such a message is sent), the load goes so high that I have to stop > dovecot > to let procmail deliver the message or even reboot the machine. >
Do you use dovecot's delivery agent (LDA)? Dovecot's LDA updates dovecot's cache file correctly. If you use a different LDA, dovecot has to re-read directory contents every time (and update the cache file). > I know multi-master replication is on the roadmap. I know some dovecot sites > use in the meantime several dovecot servers. I'd like to know how those sites > do the load balancing, the main problem beeing to be able to direct each user > to the same dovecot server each time as stated in the Wiki > (http://wiki.dovecot.org/NFS). > If you use multiple servers you can use dovecot's proxy-feature to redirect the user to the correct server. You just need a database to tell dovecot (and the MTA) on how to find the correct location for that specific user. Chris
