On Wed, May 25, 2011 at 6:16 AM, Heikki Linnakangas
<heikki.linnakangas@enterprisedb.com> wrote:
>> To achieve that, I'm thinking to change walsender so that, when the
>> standby
>> has caught up with the master, it sends back the message indicating that
>> to
>> the standby. And I'm thinking to add new function (or view like
>> pg_stat_replication)
>> available on the standby, which shows that info.
>
> By the time the standby has received that message, it might not be caught-up
> anymore because new WAL might've been generated in the master already.
AFAICS, this is an exact case of the Byzantine General's problem.
--
Simon Riggs http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services
