Why can't you svnsync the master to the hotcopy using file:// URLs? (and create the svn:sync-* props before / remove them after, if that's a problem)
Philip Martin wrote on Thu, Feb 17, 2011 at 10:54:38 +0000: > Somebody responsible for backing up a large FSFS repository asked me if > it were possible to do an incremental hotcopy. An incremental hotcopy > would update a previous hotcopy to the current HEAD and would only need > to copy the rev files newer than the previous hotcopy. This might > involve deleting rev files if the packing has changed. > > Some strategy to deal with revprops would be needed: copy them all, read > them all and copy the ones that have changed, copy the ones with newer > timestamps, something else. The locks directory would need to be > deleted and copied completely. > > Incremental hotcopy would start with a valid repository and end with a > valid reposiory, but interrupting it part way through might result in an > invalid repository. > > I don't think we can easily do this for BDB, so this would be an > FSFS-only feature; since svnadmin already has BDB-only flags this should > not be too much of a problem. > > Anyone see any problems with this approach? Does it sound like a good > idea? > > -- > Philip