DBERROR db3: 4 lockers

[Rob Siemborski]

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