turn pitr 'on' on PostgreSQL 8.2 - pg_standby

[Renato Oliveira <renato.oliveira@xxxxxxxxxxx>]

Dear all,

 

I have been playing with PITR on version 8.3 so far, but I need to get it working on version 8.2.

 

What is the difference between:

 

archive_command = on  (is this command for 8.2?)

archive_mode =    on  (This one is for 8.3!)

 

I need to enable ‘archive_mode = on’, restart postgres, before I can do the base backup, is that correct?

 

In order to bring the standby online I need a trigger file, something like:

can I call the trigger file whatever I want? for example; ‘/var/log/postgres/postgresql.8.2.trigger’

 

Postgres 8.2 config

 

Master:

        Postgresql.conf

               archive_command = on 

               archive_command = 'cp -i %p /mnt/pitr/%f &lt;/dev/null'

               archive_timeout = 60

       

        # mkdir /mnt/pitr

        # chown postgres: /mnt/pitr (this will be an NFS mount point)

        # mount –t nfs fnsserver01:/pitr /mnt/pitr

        # service postgresql restart

        # su – postgres

        # psql –U postgres

                SELECT pg_start_backup('pitr_backup');

                \q

        # Tar –cvf pg_data.tar /usr/loca/pgsql/data

        # Psql –U postgres

                SELECT pg_stop_backup();

        # cp pg_data.tar /mnt/pitr

       

 

Postgres 8.2 config

 

StandBy:

        # Compile pg_standy from the contrib/ folder

        # cd /usr/local/pgsql

        # rm –rf data/

        # tar –xvf /mnt/pitr/pg_data.tar

        # chown –R postgres: data

        # cd data/

        # cd pg_xlog/ - delete the content

        # cd ../data

        # touch recovery.conf

               restore_command = 'pg_standby -l -d -s 2 -t /var/log/postgres/ postgresql.8.2.trigger /mnt/pitr/ %f %p %r 2>>pitr_standby.log'

 

        Postgresql.conf

               #archive_command = off  - disabled and commented out

               #archive_command = '' – disabled and command removed

               # archive_timeout = 60 – disabled

 

Is this correct, am I missing something or anything here isn’t correct?    

 

If anyone could give me some light with this it would be very much appreciated.

 

Thank you very much

 

Renato

 

 

Renato Oliveira
Systems Administrator
e-mail: renato.oliveira@xxxxxxxxxxx

 

Tel: +44 (0)1763 260811
Fax: +44 (0)1763 262410
www.grant.co.uk

 

Grant Instruments (Cambridge) Ltd
 
Company registered in England, registration number 658133
 
Registered office address:
29 Station Road,
Shepreth,
CAMBS SG8 6GB
UK

 

 

 

 

 

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