Re: problem backup/restore PSQL DB

Yes, that is possible to take the backup from one instance and restore that
in another postgresql instance and for that purpose you use pg_dump (for
taking full dump use pg_dumpall) and pg_restore utilities.

Thanks,

Shoaib Mir
EnterpriseDB (www.enterprisedb.com)

On 7/25/06, JieJun Xu <jiejun83(at)gmail(dot)com> wrote:
>
> Thanks for helping. My postgresql DB is actually part of the OME system
> which stores Image Metadata. The system overview is as following:
> http://www.openmicroscopy.org/system-overview/.
>
> So I am actually using the option provided by OME to backup/restore my
> system.
> http://www.openmicroscopy.org/system-admin/backup_restore.html
>
> Part of the backup code in perl is as following:
>
> print " \\_ Backing up postgress database ome\n";
> my $dbConf = $environment->DB_conf();
> my $dbName = 'ome';
> $dbName = $dbConf->{Name} if $dbConf->{Name};
>
> my $flags = '';
> $flags .= '-h '.$dbConf->{Host}.' ' if $dbConf->{Host};
> $flags .= '-p '.$dbConf->{Port}.' ' if $dbConf->{Port};
> $flags .= '-U '.$dbConf->{User}.' ' if $dbConf->{User};
> $flags .= '-Fc'; # -F (format).
> # -p: use the plain text SQL script file this should
> be the most portable
> # -c: custom archive suitable for input into
> pg_restore
> print STDERR "su $postgress_user -c '".$prog_path{'pg_dump'}." $flags
> -o $dbName > /tmp/omeDB_backup'\n";
>
> # backup database and watch output from pg_dump
> foreach (`su $postgress_user -c '$prog_path{'pg_dump'} $flags -o
> $dbName > /tmp/omeDB_backup' 2>&1`) {
> print STDERR "\nDatabase Backup Failed: $_" and die if $_ =~
> /pg_dump/ or $_ =~ /ERROR/ or $_ =~ /FATAL/;
> }
> # check the size of omeDB_backup
> if (stat("/tmp/omeDB_backup")->size < 1024) {
> print STDERR "\nDatabase Backup Failed: /tmp/omeDB_backup is less
> than 1024 bytes in size \n";
> die;
> }
> # log version of backup
> open (FILEOUT, "> /tmp/OMEmaint") or die "Couldn't open OMEmaint for
> writing\n";
> print FILEOUT "version=$dbAdmin_version\n";
> close (FILEOUT);
>
> I will try modify the 'pg_dump' to 'pg_dumpall' and see if it works..
> But is it even possible to backup one system and restore it in another? I
> just don't want to go into a deadend. Many thanks!!
>
> Jun
>
>
>
>
> On 7/25/06, Shoaib Mir <shoaibmir(at)gmail(dot)com> wrote:
> >
> > You can also try using 'pg_dumpall' (http://www.postgresql.org/docs/8.1/static/app-pg-dumpall.html)
> > that will take the dump of all the users, groups and databases.
> >
> > Thanks,
> >
> > Shoaib Mir
> > EnterpriseDB
> >
> >
> > On 7/25/06, Paul S <plabrh1(at)gmail(dot)com> wrote:
> > >
> > >
> > > It looks like it's a user configuration issue. I have hit user setup
> > > issues
> > > while restoring DB's before and generally I find it useful to create
> > > the
> > > Users and/or Groups manually on the new server first before restoring
> > > the
> > > DB's whenever I hit problems like that. Try syncing the users
> > > manually,
> > > (assuming that there are only a few and that it could be done manually
> > > with
> > > some level of ease) and then try restoring again.
> > >
> > > -Paul
> > > --
> > > View this message in context:
> > > http://www.nabble.com/problem-backup-restore-PSQL-DB-tf1995768.html#a5478199
> > > Sent from the PostgreSQL - admin forum at Nabble.com.
> > >
> > >
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