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Preparing to run the PostgreSQL collector

Setting up pre-requisites for running the collector

Make sure that the machine from where you are running the collector meets the following hardware and software requirements.

Table 1.

Item

Requirement

Hardware (for on-premise runs only)

Note: The following specs are based upon running one collector process at a time. Please adjust the hardware if you are running multiple collectors at the same time.

RAM

8 GB

CPU

2 Ghz processor

Software (for on-premise runs only)

Docker

Click here to get Docker.

data.world specific objects (for both cloud and on-premise runs)

Dataset

You must have a ddw-catalogs dataset set up to hold your catalog files when you are done running the collector.

If you are using Catalog Toolkit , follow these instructions to prepare the datasets for collectors.



Setting up permissions

Run the following SQL statements to set up a new user with appropriate permissions to harvest from PostgreSQL

  1. Create a new role.

    CREATE ROLE ddw_role;
  2. Run the following SQL statement to grant permissions to the new role for each database and schema.

    GRANT USAGE ON SCHEMA "<schemaName>" TO ddw_role;
    GRANT SELECT ON ALL TABLES IN SCHEMA "<schemaName>" TO ddw_role;
  3. Create a new user.

    CREATE USER ddw_user PASSWORD "<password>";
    GRANT ddw_role TO ddw_user;