From: Tom Lane <tgl@sss.pgh.pa.us>
To: Scott Ribe <scott_ribe@elevated-dev.com>
Cc: Imre Oolberg <imre@auul.pri.ee>
Cc: pgsql-admin@postgresql.org
Subject: Re: Re: pg v. 8.4.5 misses objects and data after restoring from backup using wal
Date: Mon, 03 Jan 2011 13:56:48 -0500
Message-ID: <22730.1294081008@sss.pgh.pa.us> (raw)
In-Reply-To: <E486B5B1-EC5F-4615-8633-D89CF6665663@elevated-dev.com>
References: <AANLkTikY_XJ0Ok7bLGVxXXfGgenfnzJ4RnSiM_H40FCM@mail.gmail.com>
<4D2213EB.7090700@auul.pri.ee>
<42066935-6D27-46E3-8094-836D204816B7@elevated-dev.com>
<22500.1294080152@sss.pgh.pa.us>
<E486B5B1-EC5F-4615-8633-D89CF6665663@elevated-dev.com>
Scott Ribe <scott_ribe@elevated-dev.com> writes:
> Unless I misread his earlier post, he is starting the backup, copying files, stopping the backup, and expecting those transactions (between start & stop) to be applied, even though files changed during that time (including WAL files) have not all been copied. Again, unless I misread his earlier post, he is *not* copying WAL that was generated between start & stop.
If that's the case, it just plain won't work. You can either shut down
the postmaster and copy a static set of files, or you can apply WAL to a
base backup that was taken from a live database. There is no way to get
consistent results from a backup of a live database without applying all
the WAL that was generated while the backup was being taken.
regards, tom lane
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To: pgsql-admin@postgresql.org
Cc: tgl@sss.pgh.pa.us, scott_ribe@elevated-dev.com, imre@auul.pri.ee
Subject: Re: Re: pg v. 8.4.5 misses objects and data after restoring from backup using wal
In-Reply-To: <22730.1294081008@sss.pgh.pa.us>
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