| From: | Chris Redekop <chris(at)replicon(dot)com> |
|---|---|
| To: | Simon Riggs <simon(at)2ndquadrant(dot)com> |
| Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Robert Haas <robertmhaas(at)gmail(dot)com>, Florian Pflug <fgp(at)phlo(dot)org>, Aidan Van Dyk <aidan(at)highrise(dot)ca>, Daniel Farina <daniel(at)heroku(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Hot Backup with rsync fails at pg_clog if under load |
| Date: | 2011-11-02 02:40:27 |
| Message-ID: | CAC2SuRJJ09rWdZdtKnJgoqDPdB__-=Nty=xAc=a4j8W0CgEE+w@mail.gmail.com |
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| Lists: | pgsql-hackers |
looks like the v3 patch re-introduces the pg_subtrans issue...
On Tue, Nov 1, 2011 at 9:33 AM, Simon Riggs <simon(at)2ndquadrant(dot)com> wrote:
> On Thu, Oct 27, 2011 at 4:25 PM, Simon Riggs <simon(at)2ndquadrant(dot)com>
> wrote:
>
> > StartupMultiXact() didn't need changing, I thought, but I will review
> further.
>
> Good suggestion.
>
> On review, StartupMultiXact() could also suffer similar error to the
> clog failure. This was caused *because* MultiXact is not maintained by
> recovery, which I had thought meant it was protected from such
> failure.
>
> Revised patch attached.
>
> --
> Simon Riggs http://www.2ndQuadrant.com/
> PostgreSQL Development, 24x7 Support, Training & Services
>
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