Re: [GENERAL] backup database by cloning itself

2007-02-15 Thread filippo
On 13 Feb, 14:54, filippo [EMAIL PROTECTED] wrote: My target is to have the backup operation not affecting the users, so I want to be able to copy a database even if the database is used by someone. I could use pg_dump/pg_restore. pg_dump doesn't have to have exclusive access to database to

Re: [GENERAL] backup database by cloning itself

2007-02-15 Thread filippo
On 14 Feb, 08:33, [EMAIL PROTECTED] (Ron Johnson) wrote: -BEGIN PGP SIGNED MESSAGE- There's almost definitely a better way to do what you want to do. What benefit are you trying to obtain by creating 720 almost identical databases per month? I only need the last 24, overwriting each

Re: [GENERAL] backup database by cloning itself

2007-02-15 Thread Filip RembiaƂkowski
13 Feb 2007 05:54:44 -0800, filippo [EMAIL PROTECTED]: Hello, my database is not very big so I want to adopt this backup strategy: I want to clone my database every 1 hour to another database 'currenttime_mydatabase' in order to have 24 backup a day, overwriting the yesterday backups by

Re: [GENERAL] backup database by cloning itself

2007-02-15 Thread Ted
On Feb 14, 2:14 am, filippo [EMAIL PROTECTED] wrote: On 13 Feb, 14:54, filippo [EMAIL PROTECTED] wrote: My target is to have the backup operation not affecting the users, so I want to be able to copy a database even if the database is used by someone. I could use pg_dump/pg_restore.

Re: [GENERAL] backup database by cloning itself

2007-02-15 Thread Alvaro Herrera
filippo wrote: On 14 Feb, 08:33, [EMAIL PROTECTED] (Ron Johnson) wrote: -BEGIN PGP SIGNED MESSAGE- There's almost definitely a better way to do what you want to do. What benefit are you trying to obtain by creating 720 almost identical databases per month? I only need the

Re: [GENERAL] backup database by cloning itself

2007-02-15 Thread Ron Johnson
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 02/14/07 01:14, filippo wrote: On 13 Feb, 14:54, filippo [EMAIL PROTECTED] wrote: My target is to have the backup operation not affecting the users, so I want to be able to copy a database even if the database is used by someone. I could

Re: [GENERAL] backup database by cloning itself

2007-02-14 Thread Scott Marlowe
On Tue, 2007-02-13 at 07:54, filippo wrote: Hello, my database is not very big so I want to adopt this backup strategy: I want to clone my database every 1 hour to another database 'currenttime_mydatabase' in order to have 24 backup a day, overwriting the yesterday backups by

Re: [GENERAL] backup database by cloning itself

2007-02-14 Thread Tom Lane
Scott Marlowe [EMAIL PROTECTED] writes: On Tue, 2007-02-13 at 07:54, filippo wrote: my database is not very big so I want to adopt this backup strategy: I want to clone my database every 1 hour to another database 'currenttime_mydatabase' in order to have 24 backup a day, overwriting the

Re: [GENERAL] backup database by cloning itself

2007-02-14 Thread Ron Johnson
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 02/14/07 12:41, Tom Lane wrote: Scott Marlowe [EMAIL PROTECTED] writes: On Tue, 2007-02-13 at 07:54, filippo wrote: my database is not very big so I want to adopt this backup strategy: I want to clone my database every 1 hour to another

Re: [GENERAL] backup database by cloning itself

2007-02-14 Thread Ted Byers
Maybe his real goal all the backups readily available to be read by my program (opening the backup read only) is to have a historical record of what certain records looked like in the past. There are other ways of doing that, though. If your speculation is right, perhaps the OP ought to

Re: [GENERAL] backup database by cloning itself

2007-02-14 Thread Ron Johnson
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 02/14/07 13:40, Ted Byers wrote: Maybe his real goal all the backups readily available to be read by my program (opening the backup read only) is to have a historical record of what certain records looked like in the past. There are other ways

Re: [GENERAL] backup database by cloning itself

2007-02-14 Thread Webb Sprague
Maybe his real goal all the backups readily available to be read by my program (opening the backup read only) is to have a historical record of what certain records looked like in the past. What postgresql time travel? I have never used it, and it looks a little bit unmaintained, but it

Re: [GENERAL] backup database by cloning itself

2007-02-14 Thread Ted Byers
- Original Message - From: Ron Johnson [EMAIL PROTECTED] To: pgsql-general@postgresql.org Sent: Wednesday, February 14, 2007 3:46 PM Subject: Re: [GENERAL] backup database by cloning itself It seems to me that if you really want a historical record of what certain tables looked

Re: [GENERAL] backup database by cloning itself

2007-02-14 Thread Webb Sprague
Here is the link to Elein's presentation: http://www.varlena.com/GeneralBits/Tidbits/tt.pdf What [about] postgresql time travel? I have never used it, and it looks a little bit unmaintained, but it might be perfect with some tweaking: ---(end of

[GENERAL] backup database by cloning itself

2007-02-13 Thread filippo
Hello, my database is not very big so I want to adopt this backup strategy: I want to clone my database every 1 hour to another database 'currenttime_mydatabase' in order to have 24 backup a day, overwriting the yesterday backups by today-same-time backups. This is good for me because I have

Re: [GENERAL] backup database by cloning itself

2007-02-13 Thread Ron Johnson
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 02/13/07 07:54, filippo wrote: Hello, my database is not very big so I want to adopt this backup strategy: I want to clone my database every 1 hour to another database 'currenttime_mydatabase' in order to have 24 backup a day, overwriting