Re: Redesigning checkpoint_segments

On Thu, Feb 5, 2015 at 4:42 PM, Heikki Linnakangas
<hlinnakangas@vmware.com> wrote:
> Actually, perhaps we should have a boolean setting that just implies
> min=max, instead of having a configurable minimum?. That would cover all of
> those reasons pretty well. So we would have a "max_wal_size" setting, and a
> boolean "preallocate_all_wal = on | off". Would anyone care for the
> flexibility of setting a minimum that's different from the maximum?

I like the way you have it now better.  If we knew for certain that
there were no advantage in configuring a value between 0 and the
maximum, that would be one thing, but we don't and can't know that.

-- 
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company