From: Alvaro Herrera <alvherre@2ndquadrant.com>
To: Amit Kapila <amit.kapila16@gmail.com>
Cc: harukat@sraoss.co.jp, PostgreSQL Bugs <pgsql-bugs@postgresql.org>
Subject: Re: BUG #14243: pg_basebackup failes by a STATUS_DELETE_PENDING file
Date: Tue, 12 Jul 2016 18:54:04 -0400
Message-ID: <20160712225404.GA892041@alvherre.pgsql> (raw)
In-Reply-To: <CAA4eK1KzC9ZqCDbApox18p4Mp85c7=2JuZHBQMr+EqPYKNHXOw@mail.gmail.com>
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Amit Kapila wrote:
> On Tue, Jul 12, 2016 at 2:02 PM, <harukat@sraoss.co.jp> wrote:
> > C:\Program Files\PostgreSQL\9.6\data\base\16393>dir /q 16444
> >
> > C:\Program Files\PostgreSQL\9.6\data\base\16393 directory
> >
> > 2016/07/12 15:56 0 ... 16444
> >
> > Dir command says the file 16444's owner is '...'.
> > It means file 16444 is in STATUS_DELETE_PENDING.
> pg_basebackup tries to backup all the files in data directory and
> tablespaces. Refer Notes section of pg_basebackup documentation. I
> think if it decides to skip a file with some bad status, it might also
> lead to a corrupt backup. I wonder how the file has such a status?
> From the name, it looks to be a valid database file.
This file is probably being deleted by a checkpoint after some user
transaction marked it for removal (either because the relation was
dropped, or because it got a new relfilenode). I would say that the
file is not needed for the backup after all and pg_basebackup should
just ignore it.
--
Álvaro Herrera http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
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To: pgsql-bugs@postgresql.org
Cc: alvherre@2ndquadrant.com, amit.kapila16@gmail.com
Subject: Re: BUG #14243: pg_basebackup failes by a STATUS_DELETE_PENDING file
In-Reply-To: <20160712225404.GA892041@alvherre.pgsql>
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