[Dovecot] High load/corrupted indexes after moving mailboxes?

[Scott Silva]

on 3-11-2009 4:15 PM Patrick A. Treptau spake the following:
> Hello,
> 
> we're experiencing an odd issue after combining two vDisks used for mail
> storage into one big new LVM. We've done this in the past successfully and
> didn't experience a lot of problems. We
> stopped all services (dovecot/postfix) to ensure that mailbox contents
> (Maildir)
> will not be changed, rsynch'ed the mail to the new disks and restarted
> everything.
> 
> When we restarted dovecot, we noticed a huge spike in load (average load
> in top and
> high cpu iowait) and isolated dovecot as the issue. At some point, the
> average load
> crept up to over 100 and crashed the server twice. However, over time the
> average
> load and cpu wait times went down slightly. I have noticed a spike in load
> after moving
> user's mail storage, but not like this. It almost looks like everyone is
> either
> re-indexing or re-caching their mail?
> 
> Any help would be appreciated. We're on dovecot 0.99.
> 
> -Pat
> 
> 
> 
> 
I would seriously consider upgrading 0.99. Although it was a HUGE improvement
over UWimap, the newer versions run circles around it. Even a move to one of
the 1.0 stables will show major improvements, 1.1 even more, and I am sure the
new 1.2 base in beta will do it again.

I know that it is what came with your distro, but it is not the best choice
for a big mail user. I think that the biggest reason that many of the older
distros haven't pushed an upgrade is the config file changes that came in the
newer versions, not because 0.99 is better.

-- 
MailScanner is like deodorant...
You hope everybody uses it, and
you notice quickly if they don't!!!!

-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 258 bytes
Desc: OpenPGP digital signature
Url : http://dovecot.org/pipermail/dovecot/attachments/20090312/1f8cfb23/attachment.bin