On Wed, 2008-09-10 at 13:28 +0900, Fujii Masao wrote: > On Tue, Sep 9, 2008 at 8:38 PM, Heikki Linnakangas > <[EMAIL PROTECTED]> wrote: > > There's one thing I haven't figured out in this discussion. Does the write > > to the disk happen before or after the write to the slave? Can you guarantee > > that if a transaction is committed in the master, it's also committed in the > > slave, or vice versa? >
The write happens concurrently and independently on both. Yes, you wait for the write *and* send pointer to be "flushed" before you allow a synch commit with synch replication. (Definition of flushed is changeable by parameters). -- Simon Riggs www.2ndQuadrant.com PostgreSQL Training, Services and Support -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
