Re: [CORE] back-branch multixact fixes & 9.5 alpha/beta: schedule

From: Robert Haas <robertmhaas(at)gmail(dot)com>
To: David Gould <daveg(at)sonic(dot)net>
Cc: Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>, Bruce Momjian <bruce(at)momjian(dot)us>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org>, pgsql-core <pgsql-core(at)postgresql(dot)org>, Andres Freund <andres(at)anarazel(dot)de>
Subject: Re: [CORE] back-branch multixact fixes & 9.5 alpha/beta: schedule
Date: 2015-06-09 12:01:59
Message-ID: CA+Tgmobnq=RJoN2h4RKU4OgRN9ONRwz=-e1T5d=-9ZvEutoSmg@mail.gmail.com
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On Tue, Jun 9, 2015 at 3:04 AM, David Gould <daveg(at)sonic(dot)net> wrote:
> On Mon, 8 Jun 2015 13:53:42 -0300
> Alvaro Herrera <alvherre(at)2ndquadrant(dot)com> wrote:
>
>> * people with the wrong oldestMulti setting in pg_control (which would
>> be due to a buggy pg_upgrade being used long ago) will be unable to
>> start if they upgrade to 9.3.7 or 9.3.8. A solution for them would be
>> to downgrade to 9.3.6. We had reports of this problem starting just a
>> couple of days after we released 9.4.2, I think.
>
> Does this mean that for people with wrong oldestMulti settings in pg_control
> due to a buggy pg_upgrade being used long ago can fix this by updating to
> 9.3.9 when it is released? Asking for a friend...

If the value is buggy because it is 1 when it should have some larger
value, yes, this should fix it.

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

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