"Abraham, Danny" <danny_abraham@xxxxxxx> writes: > Slow machine, high stress. > I think/hope that PG is the victim of an overstressed machine. > Has anyone faced this issue in the past? Not to point out the obvious, but you're evidently using parallel queries, which was a brand new thing in 9.5; and it had its share of teething problems. I can't say whether updating to current (9.5.22) would fix this particular issue, but it would definitely fix a bunch of instabilities in that general area. regards, tom lane
