| From: | Greg Stark <gsstark(at)mit(dot)edu> |
|---|---|
| To: | Simon Riggs <simon(at)2ndquadrant(dot)com> |
| Cc: | Robert Haas <robertmhaas(at)gmail(dot)com>, Fujii Masao <masao(dot)fujii(at)gmail(dot)com>, Andres Freund <andres(at)anarazel(dot)de>, Florian Pflug <fgp(at)phlo(dot)org>, Dimitri Fontaine <dfontaine(at)hi-media(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, pgsql-hackers(at)postgresql(dot)org, Bruce Momjian <bruce(at)momjian(dot)us>, Greg Smith <greg(at)2ndquadrant(dot)com>, Josh Berkus <josh(at)agliodbs(dot)com> |
| Subject: | Re: max_standby_delay considered harmful |
| Date: | 2010-05-12 11:33:58 |
| Message-ID: | AANLkTimhpTNCSglw6D889Wy9-MRseY9UmloWkZlecHMF@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Wed, May 12, 2010 at 12:26 PM, Simon Riggs <simon(at)2ndquadrant(dot)com> wrote:
> On Wed, 2010-05-12 at 07:10 -0400, Robert Haas wrote:
>
>> I'm not sure what to make of this. Sometimes not shutting down
>> doesn't sound like a feature to me.
>
> It acts exactly the same in recovery as in normal running. It is not a
> special feature of recovery at all, bug or otherwise.
I admit I've sometimes been surprised that smart shutdown was waiting
when I didn't expect it to.
It would be good to give the shutdown more feedback. If it explicitly
shows "Waiting for n sessions with active transactions to commit" or
"Waiting for n sessions to disconnect" then the user would at least
understand why it was waiting and what would be necessary to get it to
continue.
--
greg
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