On Mon, Jun 3, 2013 at 5:03 AM, Craig Ringer <cr...@2ndquadrant.com> wrote:

> ->
> "I'll whack in some manual VACUUM cron jobs during low load maintenance
> hours and hope that keeps the worst of the problem away, that's what
> random forum posts on the Internet say to do".
> -> "oh my, why did my DB just do an emergency shutdown?"
>


This one doesn't make much sense to me, unless they mucked around with
autovacuum_freeze_max_age as well as turning autovacuum itself off (common
practice?).  With the default setting of autovacuum_freeze_max_age, if it
can't complete the anti-wraparound before emergency shutdown with autovac
off, it probably would not have completed it with autovac on, either.

Cheers,

Jeff

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