Dovecot 2.2.16: disappearing messages, mismatched summaries, duplicated messages, excessive full re-downloads

Sat Apr 18 13:30:07 UTC 2015

On Apr 18, 2015, at 8:00 AM, David Gessel wrote:

> 
> 
> -------- Original Message --------
> Subject: Re: Dovecot 2.2.16: disappearing messages, mismatched summaries, duplicated messages, excessive full re-downloads
> From: Timo Sirainen <tss at iki.fi>
> To: David Gessel <gessel at blackrosetech.com>
> Date: Sat Apr 18 2015 15:48:28 GMT+0300 (Arabic Standard Time)
> 
>> No. My best guess is that (your) ZFS+FreeBSD is simply not behaving the way Dovecot wants filesystems to behave (readdir() sometimes skipping over files). I don't have any other suggestion than trying a different filesystem or OS. I haven't heard ZFS having these problems before though.
> 
> 
> Or migrating to sdbox.  Absent any further suggestions, that will be my next step.  My commitment to Maildir is far lower than my commitment to FreeBSD/ZFS.  It is just a historical preference coming from a decade+ of courier IMAP. 

What is the output for:

# zpool status

perhaps you have a hardware issue?