Not sure if this will help at all, but I am also using EBS to store a large cdb DB. It is recommended that the filesystem that you want to snapshot on EBS is frozen (or unmounted) if that is possible to help ensure a coherent EBS snapshot.
For example, on my mysql and couchdb volumes I use the XFS filesystem which has an XFS freeze command which I use to temporarily lock the FS and flush it to disk, and then request the snapshot. You can do this in a script and it takes only a few seconds of disk downtime. I believe writes are cached during this period. I have been using this with mysql but have not yet set it up for my couchdb volume. See : http://developer.amazonwebservices.com/connect/entry.jspa?categoryID=100&externalID=1663 http://alestic.com/2009/09/ec2-consistent-snapshot HTH On Mon, Oct 19, 2009 at 1:55 PM, Chris Anderson <[email protected]> wrote: > On Mon, Oct 19, 2009 at 12:53 PM, Alex P <[email protected]> wrote: > > a simple copy seems to work just fine. db shows up with the right seq > number > > etc. > > cool. totally wanna learn about the SAN roundtrip. :) > > > > > On Mon, Oct 19, 2009 at 2:37 PM, Paul Davis <[email protected] > >wrote: > > > >> On Mon, Oct 19, 2009 at 3:35 PM, Alex P <[email protected]> wrote: > >> > cdb catalogs databases purely on file name and presence in the > >> appropriate > >> > directory, right? so if i copy db1 to db1_copy, i should see db1_copy > >> show > >> > up in futon? > >> > >> Yepper. Make sure the permissions are correct after copying though. > >> > >> Paul Davis > >> > > > > > > -- > Chris Anderson > http://jchrisa.net > http://couch.io > -- Glenn Rempe email : [email protected] voice : (415) 894-5366 or (415)-89G-LENN twitter : @grempe contact info : http://www.rempe.us/contact.html pgp : http://www.rempe.us/gnupg.txt
