On Wed, Aug 22, 2012 at 10:13:43AM +0900, Tatsuo Ishii wrote:
> >> What does "propagation of the writes" mean?
> >
> > I apologize for not being clear. In a multi-master system, people
> > frequently wish to know how quickly a write operation has been
> > duplicated to the other nodes. In some sense, those write
> > operations are incomplete until they have happened on all nodes,
> > even in the asynchronous case.
>
> IMO, that kind of functionnality is beyond the scope of benchmark
> tools.
I was trying to come up with something that would distinguish pgbench
for multi-master from pgbench run on independent nodes. Is there some
other distinction to draw?
Cheers,
David.
--
David Fetter <david@fetter.org> http://fetter.org/
Phone: +1 415 235 3778 AIM: dfetter666 Yahoo!: dfetter
Skype: davidfetter XMPP: david.fetter@gmail.com
iCal: webcal://www.tripit.com/feed/ical/people/david74/tripit.ics
Remember to vote!
Consider donating to Postgres: http://www.postgresql.org/about/donate