Les Mikesell wrote on Thu, Jun 30, 2011 at 10:09:43 -0500: > On 6/30/2011 9:22 AM, Daniel Shahaf wrote: > > > >>>I'm going to say this even more clearly: > >>> > >>>If you backup a repository by copying its files while a server is > >>>running, the backup may be created corrupted. > >>> > >>>http://subversion.apache.org/docs/release-notes/1.7#single-db (sic) > >> > >>This does not seem point to any additional warnings about the server > >>side yet (only the client)... > >> > > > >Read the attached issue. FSFS on 1.7 is affected --- specifically, > >revprops.db, which contains the only copy of revprops of packed > >revisions. > > A backup made in an inconsistent state should exactly resemble the > disk files if the system lost power or crashed for another reason at > that point. What are you supposed to do in that very likely > circumstance?
SQLite guarantees ACID in the event of a power failure. Given that, what do you think FSFS should do to handle a power failure during a revprop edit? When you say "backup", do you mean "An atomic snapshot of the disk's state", 'cp -a', or something else?
