"Dan Armbrust" <daniel.armbrust.list@xxxxxxxxx> writes: > I got a warning from PostgreSQL 8.3.1 that said something to the effect of > checkpoints are happening to frequently... (-2484 seconds) > That part that confused me was the "-2484". Is that just a hyphen in > a strange place? Or did it really calculate a negative value? Yeah, it really did. AFAICS this could only happen if the value of time(2) went backwards. Something fooling with your system clock? regards, tom lane