Re: problem backup/restore PSQL DB

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@gmail.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@gmail.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
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