Re: Import large dataset to Postgres instance in CF

Nicholas Calugar

Hi Siva,

1. If you run the PostgreSQL, you likely want to temporarily open the
firewall to load data or get on a jump box of some sort that can access the
database. It's not really a CF issue at this point, it's a general issue of
seeding a database out-of-band from the application server.
2. If the above isn't an option and your CF is running Diego, you could
use SSH to get onto an app container after SCPing the data to that
3. The only other option I can think of is writing a simple app that you
can push to CF to do the import.

Hope that helps,


On Wed, Dec 9, 2015 at 3:08 PM Siva Balan <mailsiva(a)> wrote:

Hi Nick,
Your Option 1(Using psql CLI) is not possible since there is a firewall
that only allows connection from CF apps to postgres DB. Apps like psql CLI
that are outside of CF have no access to the postgres DB.
I just wanted to get some thoughts from this community since I presume
many would have faced a similar circumstance of importing large sets of
data to their DB which is behind a firewall and accessible only through CF


On Wed, Dec 9, 2015 at 2:27 PM, Nicholas Calugar <ncalugar(a)>

Hi Siva,

You'll have to tell us more about how your PostgreSQL and CF was
deployed, but you might be able to connect to it from your local machine
using the psql CLI and the credentials for one of your bound apps. This
takes CF out of the equation other than the service binding providing the

If this doesn't work, there are a number of things that could be in the
way, i.e. firewall that only allows connection from CF or the PostgreSQL
server is on a different subnet. You can then try using some machine as a
jump box that will allow access to the PostgreSQL.


On Wed, Dec 9, 2015 at 9:40 AM Siva Balan <mailsiva(a)> wrote:

Below is my requirement:
I have a postgres instance deployed on our corporate CF deployment. I
have created a service instance of this postgres and bound my app to it.
Now I need to import a very large dataset(millions of records) into this
postgres instance.
As a CF user, I do not have access to any ports on CF other than 80 and
443. So I am not be able to use any of the native postgresql tools to
import the data. I can view and run simple SQL commands on this postgres
instance using the phppgadmin app that is also bound to my postgres service
Now, what is the best way for me to import this large dataset to my
postgres service instance?
All thoughts and suggestions welcome.

Siva Balan



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