>>> "Joshua D. Drake" <j...@commandprompt.com> wrote: 
> Who has integrated multi-master (transaction and power outage safe)
> replication now?
 
As far as I recall, nobody there was that specific about the form of
it.  PostgreSQL arguably has non-integrated multi-master replication
now, and I've seen log-based implementations which operated through
daily dial-up connectivity as far back as 1984.  (Statewide in Alaska,
and city-wide in New York City, neither of which could afford to keep
full-time communications up for all the relevant sites.)
 
I did point out the options mentioned here for PostgreSQL:
 
http://en.wikipedia.org/wiki/Multi-master_replication
 
-Kevin

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