Re: snapshot too old, configured by time

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От Robert Haas
Тема Re: snapshot too old, configured by time
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Msg-id CA+TgmobUuOFKA4u5pOS-wvnR1X6gKGiBWboSt5CyLdj4CGq6KQ@mail.gmail.com
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Ответ на Re: snapshot too old, configured by time  (Kevin Grittner <kgrittn@gmail.com>)
Ответы Re: snapshot too old, configured by time  (Michael Paquier <michael.paquier@gmail.com>)
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On Thu, Mar 3, 2016 at 2:40 PM, Kevin Grittner <kgrittn@gmail.com> wrote:
> Thanks for the tips.  Attached is a minimal set of isolation tests.
> I can expand on it if needed, but wanted:
>
> (1) to confirm that this is the right way to do this, and
>
> (2) how long people were willing to tolerate these tests running.
>
> Since we're making this time-based (by popular demand), there must
> be delays to see the new behavior.  This very minimal pair of tests
> runs in just under one minute on my i7.  Decent coverage of all the
> index AMs would probably require tests which run for at least 10
> minutes, and probably double that.  I don't recall any satisfactory
> resolution to prior discussions about long-running tests.
>
> This is a follow-on patch, just to add isolation testing; the prior
> patch must be applied, too.

Michael, any chance that you could take a look at what Kevin did here
and see if it looks good?

I'm sure the base patch could use more review too, if anyone can find the time.

Thanks,

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



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