On Wed, 2010-10-06 at 10:57 -0700, Josh Berkus wrote:
> (2), (3) Degradation: (Jeff) these two cases make sense only if we
> give
> DBAs the tools they need to monitor which standbys are falling behind,
> and to drop and replace those standbys. Otherwise we risk giving DBAs
> false confidence that they have better-than-1-standby reliability when
> actually they don't. Current tools are not really adequate for this.
Current tools work just fine for identifying if a server is falling
behind. This improved in 9.0 to give fine-grained information. Nothing
more is needed here within the server.
-- Simon Riggs www.2ndQuadrant.comPostgreSQL Development, 24x7 Support, Training and Services