Thread: copying database?

copying database?

From
hubert depesz lubaczewski
Date:
hi
i have working installation of postgresql 7.2 in one location.
then i have devel machine which should have more or less curent database
on it.
problems:
1. database is > 1gigabytes of data
2. devel machine need r/w access, but all changes to this database has
to be overwritten when downloading new version from working installation
3. i cannot shut down working installation even for a moment.

pg_dump is nto an option - due to time of inserting >1G data into new
database.
i tried to copy DATADIR from working to devel, but it didn't help
(problem with pg_xlog and missing data).

any ideas?

depesz

--
hubert depesz lubaczewski                          http://www.depesz.pl/
------------------------------------------------------------------------
... vows are spoken to be broken ...                 [enjoy the silence]
... words are meaningless and forgettable ...             [depeche mode]

Re: copying database?

From
"Holger Marzen"
Date:
> i have working installation of postgresql 7.2 in one location.
> then i have devel machine which should have more or less curent
> database on it.
> problems:
> 1. database is > 1gigabytes of data
> 2. devel machine need r/w access, but all changes to this database has
> to be overwritten when downloading new version from working
> installation 3. i cannot shut down working installation even for a
> moment.
>
> pg_dump is nto an option - due to time of inserting >1G data into new
> database.

You can pipe the output to gzip (makes the file probably smaller) or split
(splits it into smaller pieces). Restore with "cat file1 file2 file2 | psql dbname".


Re: copying database?

From
hubert depesz lubaczewski
Date:
On Mon, Mar 04, 2002 at 12:26:50PM -0100, Holger Marzen wrote:
> > pg_dump is nto an option - due to time of inserting >1G data into new
> > database.
> You can pipe the output to gzip (makes the file probably smaller) or split
> (splits it into smaller pieces). Restore with "cat file1 file2 file2 | psql dbname".

the problem is not in transferring data, but in insert time.

depesz

--
hubert depesz lubaczewski                          http://www.depesz.pl/
------------------------------------------------------------------------
... vows are spoken to be broken ...                 [enjoy the silence]
... words are meaningless and forgettable ...             [depeche mode]