| From: | Noah Misch <noah(at)leadboat(dot)com> |
|---|---|
| To: | Robert Haas <robertmhaas(at)gmail(dot)com> |
| Cc: | Andres Freund <andres(at)anarazel(dot)de>, Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Thomas Munro <thomas(dot)munro(at)enterprisedb(dot)com>, "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com>, Steve Kehlet <steve(dot)kehlet(at)gmail(dot)com>, Forums postgresql <pgsql-general(at)postgresql(dot)org>, Pg Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: [GENERAL] 9.4.1 -> 9.4.2 problem: could not access status of transaction 1 |
| Date: | 2015-06-05 06:20:17 |
| Message-ID: | 20150605062017.GA109490@tornado.leadboat.com |
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| Lists: | pgsql-general pgsql-hackers |
On Thu, Jun 04, 2015 at 05:29:51PM -0400, Robert Haas wrote:
> Here's a new version with some more fixes and improvements:
I read through this version and found nothing to change. I encourage other
hackers to study the patch, though. The surrounding code is challenging.
> With this version, I'm able to see that when you start up a
> 9.3.latest+this patch with a cluster that has a bogus value of 1 in
> relminmxid, datminmxid, and the control file, autovacuum vacuums
> everything in sight, all the values get set back to the right thing,
> and the next checkpoint enables the member-wraparound guards.
Nice.
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