Jeff Amiel <becauseimjeff@yahoo.com> writes:
> Tracking for last few days.
> Does not appear to happen when little or no user
> activity (like Saturday) I don't know if that rules
> out autovacuum or not (if no update threshholds are
> reached, no vacuuming will take place anyway)
Can you correlate these occurrences with anything in the regular system
logs (kernel log in particular)? The Postgres log shows nothing out of
the ordinary --- it's simply that the kernel won't give us 512M for some
reason. I'm guessing it's got something to do with overall system load.
regards, tom lane