From: | Alvaro Herrera <alvherre(at)commandprompt(dot)com> |
---|---|
To: | Radoslaw Zielinski <radek(at)pld-linux(dot)org> |
Cc: | pgsql-bugs(at)postgresql(dot)org |
Subject: | Re: 8.4.0 data loss / HOT-related bug |
Date: | 2009-08-21 16:15:26 |
Message-ID: | 20090821161526.GE5487@alvh.no-ip.org |
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Thread: | |
Lists: | pgsql-bugs |
Radoslaw Zielinski wrote:
> Hello,
>
> 8.4.0 installation on i686 modern Linux, a simple production app with ~4
> users entering data; normalised, no weird stuff happening there. Recently:
>
> ERROR: missing chunk number 0 for toast value 120741 in pg_toast_29644
> bug=# select id, last_modified, xmin,xmax,cmin,cmax,ctid from public.promocje where id = 4300;
> id | last_modified | xmin | xmax | cmin | cmax | ctid
> ------+----------------------------+------+------+------+------+---------
> 4300 | 2009-08-11 09:54:11.007351 | 3819 | 6179 | 0 | 0 | (539,7)
> (1 row)
I wonder if this could be explained by xid=6179 not marked as committed
in clog. I'd try flipping that bit and see what happens ...
--
Alvaro Herrera http://www.CommandPrompt.com/
PostgreSQL Replication, Consulting, Custom Development, 24x7 support
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