On 10 August 2016 at 07:09, Jim Nasby <jim.na...@bluetreble.com> wrote:
> > The downside to leaving stuff like this off by default is users won't > remember it's there when they need it. At best, that means they spend more > time debugging something than they need to. At worse, it means they suffer > a production outage for longer than they need to, and that can easily > exceed many months/years worth of the extra cost from the monitoring > overhead. > Yeah.. and I've got to say, the whole "it'll hurt benchmarks if it's on by default" argument falls flat on its face when you look at our defaults for shared_buffers, etc. If you don't tune Pg, it runs reliably, but slowly. If this proves to have "reasonable" overhead, I'd be inclined to say it should just be on. I frequently wish auto_explain and pg_stat_statements were in-core and on-by-default so when someone calls saying things got slow the historical data is already there. I'm sure this'll be the same. -- Craig Ringer http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services
