Re: migrating/backup script - Mailing list pgsql-admin

Hi Justin,

    I have this scrawled inside the back cover of my copy of PostgreSQL "a
developer's handbook'.
    It must have worked or I wouldn't have written it. <g>

    create a file for backup e.g.
    G:\HCCISA.SQL   (obviously a samba mapped drive and file)

    as ROOT
    on linux red hat 7.3, postgresql 7.2.?

    cd  /mnt/samba

    chmod 777 HCCISQ.SQL

    su ( to other postgres user other than postgres) e.g. "su mick"

    pg_dump -a -f HCCISA.SQL hccisa -Ft
           more scrawl follows that  says (for tar gnu zip)

    pg_restore -a -Ft -d hccisa HCCISA.SQL

    It would appear on further examinaition that these commands came from
    Practical PostgreSQL page 353 onwards.

    I remember testing both commands and having success with both backup and
restore.

    Good Luck

    Mark Carew
    Brisbane Australia

"Justin Georgeson" <jgeorgeson@unboundtech.com> wrote in message
news:3DF79130.9020105@unboundtech.com...
> Hello all. I recently came into the position of maintaining several SQL
> database servers. Having no prior experience other then FileMaker, I'm a
> little daunted. :) So one of things I'm doing is moving them to new
> servers. In the process I thought it would be a good idea to come up
> with a backup script I can turn into a cron job. I took a look at the
> scetion on backup/restore in Practical PostGreSQL, and the pg_dump
> manpage. I wanted to split out dumping schema/data/oid/blob into
> separate dump files. Seems the pg_dump I have doesn't support -C or -b,
> or -F. So here's what I have for what's left. In order to automate, I
> have a text file, readable only by root, with the username/pass to
> connect to the database as. That's what the cat file | pg_dump is for.
> I'm very open to improvement on that part of things. Using this, should
> I restore data then oids? Will I have any issues going from 7.0.3 to
> 7.2.1? I'm moving to a RH 7.3 server running the RH 7.2.1 packages. Any
> fatal flaws/gotchas I should be aware of? Thanks in advance.
>
> DBS="db1 db2 db3"
>
> BACKUP="/my/backup/folder"
> DATE=`date +%Y-%m-%d--%H-%M-%S`
>
> check_err() {
>    if [ $1 -ne 0 ]; then
>      echo "There was an error creating $2"
>    fi
> }
>
> cd $BACKUP
> mkdir $DATE && cd $DATE
>
> for DB in $DBS; do
>    echo -n "$DB : ... "
>    mkdir $DB && cd $DB
>
>    # schema
>    cat $BACKUP/pass | pg_dump -u -s -f ./$DB.schema $DB > $DB.log 2>&1
>    check_err $? $DB.schema
>    # data
>    cat $BACKUP/pass | pg_dump -u -a -D -f ./$DB.data $DB > $DB.log 2>&1
>    check_err $? $DB.data
>    # oids
>    cat $BACKUP/pass | pg_dump -u -o -f ./$DB.oids $DB > $DB.log 2>&1
>    check_err $? $DB.oids
>
>    echo "done."
>    cd ..
> done
>
> --
> Justin Georgeson
> UnBound Technologies, Inc.
> http://www.unboundtech.com
> Main   713.329.9330
> Fax    713.460.4051
> Mobile 512.789.1962
>
> 5295 Hollister Road
> Houston, TX 77040
> Real Applications using Real Wireless Intelligence(tm)
>
>
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