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Re: recovery_connections cannot start

From: Robert Haas <robertmhaas(at)gmail(dot)com>
To: Simon Riggs <simon(at)2ndquadrant(dot)com>
Cc: Dimitri Fontaine <dfontaine(at)hi-media(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>, Kevin Grittner <Kevin(dot)Grittner(at)wicourts(dot)gov>, Fujii Masao <masao(dot)fujii(at)gmail(dot)com>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: recovery_connections cannot start
Date: 2010-04-26 10:29:19
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-hackers
On Mon, Apr 26, 2010 at 6:08 AM, Simon Riggs <simon(at)2ndquadrant(dot)com> wrote:
> On Mon, 2010-04-26 at 10:41 +0200, Dimitri Fontaine wrote:
>> Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> writes:
>> >   The only workable
>> > alternative I can see to keeping archive_mode is to tell people to
>> > set archive_command to something like /usr/bin/true ... which is not
>> > simpler, especially not on Windows.
>> Would it be possible to have "internal" commands there, as for example
>> cd is in my shell, or test, or time, or some more ?
>> That would allow for providing a portable /usr/bin/true command as far
>> as archiving is concerned (say, pg_archive_bypass), and will allow for
>> providing a default archiving command in the future, like "pg_archive_cp
>> /location" or something.
> I think making a special case here is OK.
> If command string == 'true' then we don't bother to call system(3) at
> all, we just assume it worked fine.
> That way we have a simple route on all platforms.

Separating wal_mode and archive_mode, as we recently discussed, might
eliminate the need for this kludge, if archive_mode can then be made
changeable without a restart.


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Subject: Re: don't allow walsender to consume superuser_reserved_connection slots, or during shutdown
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Subject: Re: recovery_connections cannot start (was Re: master in standby mode croaks)

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