On Mon, 2011-04-25 at 19:02 +0200, Osvaldo Alvarez Pozo wrote:
hi all
We have an ocfs2 cluster compose of 4 Debian lenny serveurs wich have access to an ISCSI LUN we have create a partition on this Lun and formated this partition as OCFS2. 2 serveurs does mail delivery (SMTP) and the two other are pop/imap servers. The smtp servers use dovecot LDA to deliver to mailboxes. La version de dovecot is 1.2.13, ldirectord balance conexion to the servers(pop/pops/imap/imaps to the two imap/pop serveurs) (smtp to the two smtp servers).
With v2.0 I'd suggest using http://wiki2.dovecot.org/Director
mail_location = maildir:/var/vmail/%d/%u/Maildir
Cluster filesystems don't seem to like Maildir much. With v2.0 you could use mdbox.
We are having severals problems from "cpu stuck for 61 seconds" to "too many connexion".
I don't know what either of those errors mean. In any case you should switch to high-performance login processes: http://wiki.dovecot.org/LoginProcess
http://wiki.dovecot.org/PerformanceTuning has more stuff