Jason L Tibbitts III wrote: > [Forgot to send this to the list; sorry. > >>>>>> "BG" == Bron Gondwana <brong@xxxxxxxxxxx> writes: > > BG> No, sorry. > > I figured as much; I backed off to 2.3.7 on the new machine so that I > could get a good replica. > > BG> Replication across versions is trick at the best of times, and > BG> you're talking about versions 3 and a half years apart! > > I had guessed, though perhaps I had hoped that something would simply > tell me that instead of giving odd errors that made me think that I had > misconfigured something. But I think I have my plan of attack readied. > > BG> Unfortunately, your only real option is to upgrade to 2.3.16 on both > BG> at roughly the same time. > > Actually my plan is to simply abandon the old, failing master (leaving > it with the current content in case things blow up), upgrade the replica > to 2.3.16, make it the master and set up yet another machine as a > replica. > > BG> The upgrade itself should go seamlessly. Because of the mailbox > BG> format change, you will get an IO hit as each mailbox open causes a > BG> full index file rewrite to upgrade it to the new format! > > Not a big deal, though I wonder if there's any way I can force this to > happen all at once in the middle of the night instead of when some user > happens to open their multi-gigabyte inbox. The new machine is > seriously over-specified for the task at hand so I don't think the extra > IO will be a problem, but it would still be nice to do it all at once. > > BG> This also means you can't downgrade again without doing a full > BG> reconstruct of every mailbox. > > I hope to not need to do so, but in case I do, that's just > reconstruct -r > on everything under user, right? I guess it's a credit to the software > that I've never really have to mess with the recovery tools in the years > I've been using it. su - -c "/usr/lib/cyrus-imapd/reconstruct -r -s -k user.*" cyrus > > - J< > ---- > 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 ---- 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
