On 10 May 2013 15:04, Merlin Moncure <mmoncure@gmail.com> wrote:
> right. hm, I guess this is something to keep in mind if you start
> going down the path of 'keep frequently accessed buffers pinned for
> longer durations -- possibly even forever'.
Just to mention that this scenario effectively starves anybody wanting
a cleanup lock, which was the reason we put in logic to VACUUM to skip
busy pages.
We just need to extend that thought to page level cleanup also.
--Simon Riggs http://www.2ndQuadrant.com/PostgreSQL Development, 24x7 Support, Training & Services
