From: | Albert Shih <Albert(dot)Shih(at)obspm(dot)fr> |
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To: | pgsql-admin(at)postgresql(dot)org |
Subject: | WAL backup |
Date: | 2009-07-28 07:46:31 |
Message-ID: | 20090728074631.GC25904@obspm.fr |
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Thread: | |
Lists: | pgsql-admin |
Hi all
I'm not sure I understand
http://www.postgresql.org/docs/8.3/interactive/continuous-archiving.html
My problem:
I've huge database ~ 1To (soon 2 To) and I need backup.
I can use pgdump because it's too long to do the backup.
So I like to use «continous-archiving».
For the continuous archiving I do
Modifying postgresql.conf with :
archive_mode = on
archive_command = 'cp -i %p /databases/Archives/%f </dev/null'
restart postgresql
after that I make a big backup:
psql -c "select pg_start_backup('complete_backup');"
rsync -av /databases/pgsql /databases/Archives
psql -c "select pg_stop_backup();"
before this moment I use «continuous-archiving» by put in my crontab
something like (every hours)
rsync -av /databases/pgsql /databases/Archives
is that correct ?
And more important : How long I can keep this the rsync ? I mean after how
long it's good to make a new «big backup» ?
Regards.
--
Albert SHIH
SIO batiment 15
Observatoire de Paris Meudon
5 Place Jules Janssen
92195 Meudon Cedex
Téléphone : 01 45 07 76 26/06 86 69 95 71
Heure local/Local time:
Mar 28 jul 2009 09:23:23 CEST
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