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Re: backups and WAL

From: G u i d o B a r o s i o <gbarosio(at)uolsinectis(dot)com(dot)ar>
To: mendola(at)bigfoot(dot)com, pablobarbachano(at)yahoo(dot)es,pgsql-admin(at)postgresql(dot)org
Subject: Re: backups and WAL
Date: 2004-08-27 09:19:23
Message-ID: 20040827091923.33BBE6C3BB@tino.sinectis.com.ar (view raw or flat)
Thread:
Lists: pgsql-admin
On this issue,

   Is a good idea to ln -s the pg_xlog directory onto another place, while the postmaster is running?

    I agree with pablo, documentation at this point is not easy to found. 

Regards,

> pablobarbachano(at)yahoo(dot)es wrote:
> 
> > Hi, first of all thanks for postgresql, it has never given a problem
> > and is performing great.
> > 
> > Now my question: my employer wants to do backups every 12 hours, and
> > save the logs evry 2 hours to... Can I simply save the logs 
> > (cp pg_xlog/* ...) or do I need something more elaborate?
> > 
> > Now in a restore situation ... I restore the database, and then what?
> > put the saved files back in the pg_xlog/ dir, then start postmaster
> > and magically all starts working? Am I correct or completely insane?
> > The documentation is not clear in that aspect...
> 
> I suppose that you use a pre 8.0 version, if yes take a look at:
> 
> http://www.postgresql.org/docs/7.4/interactive/backup.html
> 
> 
> take also a look at PITR available in the future ( near I hope :-) )
> 8.0:
> 
> http://developer.postgresql.org/docs/postgres/backup-online.html
> 
> 
> 
> Regards
> Gaetano Mendola
> 
> 
> 
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