Re: Could not read from file "pg_subtrans/00F5" at offset 122880: Success.

From: Sri Mrudula Attili <sri(at)ebi(dot)ac(dot)uk>
To: Laurenz Albe <laurenz(dot)albe(at)cybertec(dot)at>, pgsql-general(at)lists(dot)postgresql(dot)org
Subject: Re: Could not read from file "pg_subtrans/00F5" at offset 122880: Success.
Date: 2023-11-29 17:20:20
Message-ID: d2abe33c-fb65-492d-9671-2541a349a9db@ebi.ac.uk
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Hello Laurenz,

 Thanks for your response.

This error we are seeing on a delphix Virtual database that was
refreshed using the snapshot of production standalone database.

It keeps the database in pg_start_backup and to take the snapshot.

I did check the dsource(production) database logs and it hasnt got any
error like this.

Thanks,

Sri Attili

On 27/11/2023 18:58, Laurenz Albe wrote:
> On Mon, 2023-11-27 at 11:50 +0000, Sri Mrudula Attili wrote:
>> ERROR:  could not access status of transaction 16087052
>> DETAIL:  Could not read from file "pg_subtrans/00F5" at offset 122880: Success.
>> STATEMENT:  SELECT distinct
> That's data corruption.
> Time to restore your backup.
>
> Investigate how you got there. Did you run "pg_resetwal"?
> Did you restore a database from a file system backup?
> Did you remove a "backup_label" file? Is your hardware broken?
>
> Yours,
> Laurenz Albe

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