Re: [GENERAL] Using cp to back up a database?

If you want a consistent database (you *REALLY* do), pg_dump is the correct tool.

In all pg conferences I have been, ppl scream : do not use pg_dump for backups :)

 

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Larry Rosenman                     http://www.lerctr.org/~ler

Phone: +1 214-642-9640                 E-Mail: ler@lerctr.org

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From: <pgsql-general-owner@postgresql.org> on behalf of Ron Johnson <ron.l.johnson@cox.net>
Date: Monday, October 9, 2017 at 8:41 AM
To: "pgsql-general@postgresql.org" <pgsql-general@postgresql.org>
Subject: [GENERAL] Using cp to back up a database?

 

Hi,

v8.4.20

This is what the current backup script uses:

/usr/bin/psql -U postgres -c "SELECT pg_start_backup('Incrementalbackup',true);"

cp -r /var/lib/pgsql/data/* $dumpdir/data/

/usr/bin/psql -U postgres template1 -c "SELECT pg_stop_backup();"

Should it use rsync or pg_dump instead?

Thanks

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