On 2015-01-18 21:33:25 -0500, Robert Haas wrote:
> On Sun, Jan 18, 2015 at 4:09 PM, Tom Lane <t...@sss.pgh.pa.us> wrote:
> > After looking at the code, the minimum-change alternative would be more or
> > less as attached: first, get rid of the long-obsolete proposition that
> > autovacuum workers need fresher-than-usual stats; second, allow
> > pgstat_vacuum_stat to accept stats that are moderately stale (the number
> > given below allows them to be up to 50 seconds old); and third, suppress
> > wait-timeout warnings when the call is from pgstat_vacuum_stat.  The third
> > point is what we need to avoid unnecessary buildfarm failures.  The second
> > point addresses the idea that we don't need to stress the stats collector
> > too much for this.
> 
> I think this is too much of a good thing.  I don't see any reason why
> autovacuum's statistics need to be fresher than normal, but I also
> don't see any reason why they need to be less fresh.  I think
> suppressing the warning is a good idea, but why only suppress it for
> autovacuum?  How about just knocking the level down to, say, DEBUG1?

+1 for just using LOG - which by default does not end up on client
machines. In contrast to WARNING.

Greetings,

Andres Freund

-- 
 Andres Freund                     http://www.2ndQuadrant.com/
 PostgreSQL Development, 24x7 Support, Training & Services


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