Yeap, already done this! hahahah
now is just 3 process. maxproc.
We are thinking is use sdbox but we have to be a lot of sure that will help a LOT other wise we gona be "stick" to dovecot for no big reason!
We just did a huge migration from mbox to maildix. Still some problems in some accounts but is ok!
Thanks!
Other time i saw some one using indexes in local disk. This should help ? i mean, we would have 2 index one in each server that have imap and pop, so each tim eindex would have to be written each time it logins on each server right ? this would not gain lot os performance right ?
[]'sf.rique
On Thu, Dec 9, 2010 at 9:20 PM, Timo Sirainen tss@iki.fi wrote:
I am using postfix + dovecot 2.0.6 + mailman
And others 2 serves with only postfix and dovecot writing at same storage with OCFS2.
We are having problens with IOwait, and still trying to figure out why
On Thu, 2010-12-09 at 17:15 -0200, Henrique Fernandes wrote: that
is happen!
sdbox/mdbox format should reduce disk IO compared to maildir.
But, problem becomes much worse when some emails are used in mailman, when it happens all 3 serves became really slow. iowait goes to 80.
Does anyone have an idea how to slow down the dovecot lda ?
By telling Postfix to limit the number of simultaneous dovecot-lda processes. In master.cf you have:
# service type private unpriv chroot wakeup maxproc command + args
So change the dovecot-lda entry's maxproc from "-" to however many simultaneous dovecot-ldas you want.