On Wed, Oct 19, 2016 at 11:11 AM, Bruce Momjian <bruce@momjian.us> wrote:
> On Wed, Oct 19, 2016 at 11:08:28AM -0500, Kevin Grittner wrote:
>> On Wed, Oct 19, 2016 at 10:04 AM, Bruce Momjian <bruce@momjian.us> wrote:
>>
>>> Slide 10 of this presentation has an example showing
>>> old_snapshot_threshold set to '1min':
>>>
>>> http://momjian.us/main/writings/pgsql/features.pdf
>>
>> If the presentation is intending to show reasonable values for
>> production use, that would be better as, maybe, '2h'.
> The example is just to illustrate the activities required to trigger it,
> e.g. pg_sleep(), VACUUM.
Yeah, in such a demonstration you probably don't want to have
everyone sit for 2 hours, so 1 minute makes perfect sense. :-)
--
Kevin Grittner
EDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company