Hi, > The tricky part is - there should be a master, and it should > probably either be chosen by some sort of election between the active > servers (here lies high-availability heartbeat magic) or by IP address > allocation. Anybody know if avahi and friends can help here? spread (http://www.spread.org/), as exemplified by Wackamole (http://www.backhand.org/wackamole/) is good for distributed heartbeat and election algorithms. It takes more work to make it reliable for heavy data transfer, but Cyrus has solved that part of the problem already. Regards, @ndy -- andyjpb@xxxxxxxxxxxxxx http://www.ashurst.eu.org/ 0x7EBA75FF ---- Cyrus Home Page: http://www.cyrusimap.org/ List Archives/Info: http://lists.andrew.cmu.edu/pipermail/info-cyrus/