Re: Moving data directory

On Sat, May 12, 2007 at 11:47:46PM +0700, Linux Geeks wrote:
> I'm very new to postgresql and would like to move my data directory to
> another partition in Ubuntu.

I don't think there is anything internal to pg that locks the data
location. Just tell postmaster where you move it to. Shut down the
postmaster and move it and start it with the -D flag pointing to the
new location:

$ pg_ctl start -D /var/pgsql/data
server starting

$ psql -p 5437 testdb jira
Password for user jira:
Welcome to psql 8.2.3, the PostgreSQL interactive terminal.

Type: \copyright for distribution terms
\h for help with SQL commands
\? for help with psql commands
\g or terminate with semicolon to execute query
\q to quit

testdb=> \q

pg_ctl stop -D /var/pgsql/data
waiting for server to shut down....,7222,,2007-05-13 19:52:06.675 EDT,,1,,, LOG: logger shutting down
done
server stopped

$ mv /var/pgsql/data-move-test /var/pgsql/data

$ pg_ctl start -D /var/pgsql/data-move-test
server starting

$ psql -p 5437 testdb jira
Password for user jira:
Welcome to psql 8.2.3, the PostgreSQL interactive terminal.

Type: \copyright for distribution terms
\h for help with SQL commands
\? for help with psql commands
\g or terminate with semicolon to execute query
\q to quit

testdb=> \q

pg_ctl stop -D /var/pgsql/data-move-test
waiting for server to shut down....,7245,,2007-05-13 19:55:00.944 EDT,,1,,, LOG: logger shutting down
done
server stopped

$ mv /var/pgsql/data-move-test /var/pgsql/data

$ pg_ctl start -D /var/pgsql/data
server starting

$ psql -p 5437 testdb jira
Password for user jira:
Welcome to psql 8.2.3, the PostgreSQL interactive terminal.

Type: \copyright for distribution terms
\h for help with SQL commands
\? for help with psql commands
\g or terminate with semicolon to execute query
\q to quit

testdb=> \q

--
Lost time is when we learn nothing from the experiences of life. Time
gained is when we grow to have a wisdom that is tested in the reality of life.