From: | Fujii Masao <masao(dot)fujii(at)gmail(dot)com> |
---|---|
To: | Simon Riggs <simon(at)2ndquadrant(dot)com> |
Cc: | Robert Haas <robertmhaas(at)gmail(dot)com>, Petr Jelinek <petr(at)2ndquadrant(dot)com>, Asif Naeem <anaeem(dot)it(at)gmail(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: Add shutdown_at_recovery_target option to recovery.conf |
Date: | 2014-11-25 14:06:12 |
Message-ID: | CAHGQGwFN72-Dr6Eacx6MV1LymY5j4v+R1PfdXgPkjHVgXNQ2GA@mail.gmail.com |
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Lists: | pgsql-hackers |
On Thu, Nov 20, 2014 at 5:35 AM, Simon Riggs <simon(at)2ndquadrant(dot)com> wrote:
> On 19 November 2014 16:41, Fujii Masao <masao(dot)fujii(at)gmail(dot)com> wrote:
>> On Wed, Nov 19, 2014 at 10:49 PM, Robert Haas <robertmhaas(at)gmail(dot)com> wrote:
>>> On Wed, Nov 19, 2014 at 8:13 AM, Simon Riggs <simon(at)2ndquadrant(dot)com> wrote:
>>>> If we ask for PAUSE and we're not in HotStandby it just ignores it,
>>>> which means it changes into PROMOTE. My feeling is that we should
>>>> change that into a SHUTDOWN, not a PROMOTE.
>>>
>>> To me, that seems like a definite improvement.
>>
>> But changing the default will force us to set
>> action_at_recovery_target to 'promote'
>> when we want to just recover the database to the specified point.
>
> If you explicitly request pause and then can't pause, ISTM the action
> we actually perform shouldn't be the exact opposite of what was
> requested.
>
> So if the user explicitly requests pause and we aren't in HS then they
> should get Shutdown, which is closest action.
>
> If the user doesn't request anything at all then we can default to
> Promote, just like we do now.
Yes, this is what I was trying to suggest. +1 to do that.
Regards,
--
Fujii Masao
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