DBERROR db3: 4 lockers

[Andrew Brink]

In theory, what would happen if you didn't dump the mailbox list before
upgrading?

> -----Original Message-----
> From: Rob Siemborski [mailto:rjs3 at andrew.cmu.edu] 
> Sent: Thursday, September 25, 2003 5:06 PM
> To: Robert Covell
> Cc: info-cyrus at lists.andrew.cmu.edu
> Subject: Re: DBERROR db3: 4 lockers
> 
> 
> On Thu, 25 Sep 2003, Robert Covell wrote:
> 
> > We are in the process of replacing our 1.5.24 Cyrus box with a new 
> > 2.1.15 box.  After we got everything setup, tested and 
> stabilized we 
> > rebooted the box and got:
> >
> > Sep 25 16:12:09 mail1b ctl_cyrusdb[152]: checkpointing 
> cyrus databases 
> > Sep 25 16:12:09 mail1b lmtpd[155]: DBERROR db3: 4 lockers Sep 25 
> > 16:12:09 mail1b ctl_cyrusdb[152]: done checkpointing cyrus 
> databases 
> > Sep 25 16:12:09 mail1b imapd[156]: DBERROR db3: 4 lockers Sep 25 
> > 16:12:11 mail1b imapd[172]: DBERROR db3: 4 lockers
> 
> Note that in reality, esepcially for smaller sites, these 
> messages on their own aren't a severe concern.  Only if the 
> number is rapidly increasing should they be worried about.
> 
> > Is the recommendation of using skiplist with mailboxes.db 
> still valid?  
> > Or do we need to shutdown the cyrus server before we shutdown?  If 
> > shutting it down before a reboot what is the preferred 
> method?  We are 
> > still in a position to change the format if necessary 
> before migrating 
> > 800+ users...
> 
> Yes.  You will need to recompile the cyrus server to do this. 
> You will also want to dump the mailbox list beforehand, and 
> undump it afterwords (as with any 1.x -> 2.x upgrade).
> 
> 
> -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
> Rob Siemborski * Andrew Systems Group * Cyert Hall 207 * 
> 412-268-7456 Research Systems Programmer * /usr/contributed Gatekeeper
> 
>