On Sun, Apr 24, 2011 at 1:20 PM, Michael Diers <mdi...@elego.de> wrote: > While your observation regarding merging is correct, it does not apply > to the replication technique that WANdisco use in their product. > > The network nodes handling the repositories are distributed, but not > isolated. The nodes actively agree on how to apply a proposed change to > their repository replicas, effectively avoiding the merge problem. > > WANdisco provide a well-written White Paper explaining this. > > http://www.wandisco.com/get/?f=documentation/whitepapers/WANdisco_DConE_White_Paper.pdf
So Lamport clocks are used to make sure that all online servers make the same decisions, and repositories are made read only if they can't communicate with the majority of servers? Maybe I missed something, but is seems strange to be able to patent solutions invented in the seventies. /$
