Re: pg_clog

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: "Edoardo Ceccarelli" <eddy(at)axa(dot)it>
Cc: pgsql-admin(at)postgresql(dot)org
Subject: Re: pg_clog
Date: 2006-12-18 18:48:33
Message-ID: 25199.1166467713@sss.pgh.pa.us
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"Edoardo Ceccarelli" <eddy(at)axa(dot)it> writes:
> pg_dump: ERROR: could not access status of transaction 1629514106
> DETAIL: could not open file "pg_clog/0612": No such file or directory

This looks like a data corruption problem to me. It may or may not be
significant that 1629514106 = 0x6120697a = ASCII 'zi a' (or 'a iz' if
you are on a big-endian machine). That looks at least a little bit
plausible for Italian text, so I'm wondering if your disk drive or OS
has hiccuped and dumped a sector or two of some other file into your
database :-(. We've seen it happen before.

Check the archives for past discussions about locating and recovering
from corrupted data.

regards, tom lane

In response to

  • pg_clog at 2006-12-18 17:57:23 from Edoardo Ceccarelli

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  • Re: pg_clog at 2006-12-18 19:01:17 from Edoardo Ceccarelli

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