Re: Cyrus questions, lost emails, reconstruct

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Blake,

--- Blake Hudson <blake@xxxxxxxx> wrote:

> 
> 
> -------- Original Message  --------
> Subject: Cyrus questions, lost emails, reconstruct
> From: Derrick Seymour <seymourdh@xxxxxxxxx>
> To: info-cyrus@xxxxxxxxxxxxxxxxxxxx
> Date: Wednesday, May 14, 2008 10:20:28 AM
> > I have been having a few problems as of late.
> >
> > First, lost emails.  Well they aren't really lost,
> i
> > have located them in the imap mail store under the
> > users name, kind of hidden i guess you would say. 
> not
> > sure why that is.
> >
> > This happens randomly with incoming emails, maybe
> one
> > out of a couple thousand.
> >
> > My fix to this was to reconstruct the user box.
> >   
> ...
> > while this works, it seems to corrupt the inbox,
> only
> > the inbox all other folders stay intack.
> >   
> ...
> > sudo -u cyrus /usr/bin/cyrus/bin/reconstruct -i
> >
> > and of course this fixes the problem of the mail
> box
> > does not exist but i always seems to lose some
> emails
> > in the process, usually one or two users at random
> >
> > You can probably see a very bad cycle here.
> >   
> ...
> 
> Sounds like bad RAM maybe corrupting the cyrus
> databases... Any other 
> indication of file corruption or system
> locking/freezing/rebooting 
> (things associated with bad memory) ?
> 
> In a PC I'd run memtest86, dunno if that option is
> available to you.
> 
> -Blake
> ----
> Cyrus Home Page: http://cyrusimap.web.cmu.edu/
> Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twiki
> List Archives/Info:
> http://asg.web.cmu.edu/cyrus/mailing-list.html
> 

No signs of bad memory, the server operates off a
fiber channel RAID and there are no warnings or
failures with that either.  There are a couple of
utilities i can try to test the memory, but i will not
have an answer on that until this weekend.

Why would reconstruct -i work (minus the few
disappearing emails) and reconstruct -r user/short
name corrupt the inbox?  I have to assume if the inbox
didn't get corrupted that the missing emails in
question would be there.  I have tried to copy emails
from inbox to a folder in side the usernames folder,
upon a reconstruct -r those emails are now viewable,
but the main inbox is still corrupt.

Just a few things I tried if any of this helps.

Thanks again for you help in advance

Derrick
----
Cyrus Home Page: http://cyrusimap.web.cmu.edu/
Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twiki
List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html

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