> Hmm ... can you extract a test case? Or at least strace the backends
> involved?
No, and no. Strace was the first thing I thought of, but I'd have to
somehow catch one of these backends in the 3 seconds it's locked. Not
really feasible.
It might be possible to construct a test case, depending on how much the
user wants to spend on the problem. I'd estimate that a test case would
take 8-12 hours of my time to get working, given the level of activity
and concurrency required.
--
-- Josh Berkus
PostgreSQL Experts Inc.
http://www.pgexperts.com