On Fri, Nov 13, 2009 at 10:58 AM, Aidan Van Dyk <[email protected]> wrote: > * Fujii Masao <[email protected]> [091112 20:52]: > >> Personally, I think >> that >> semi-synchronous replication is sufficient for HA. > > Often, but that's not synchronous replication so don't call it such...
Hmm, though I'm not sure about your definition of "synchronous", if the primary waits for a *redo* ACK from the standby before returning a "success" of a transaction to a client, you can call SR synchronous? This is one of TODO items of SR for v8.5. Regards, -- Fujii Masao NIPPON TELEGRAPH AND TELEPHONE CORPORATION NTT Open Source Software Center -- Sent via pgsql-hackers mailing list ([email protected]) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
