Information Schema Catalog Collector (ISCC) and DWCC


  • The computer running the catalog collector should have connectivity to the internet or access to the source instance, a minimum of 2G memory, and a 2Ghz processor.

  • If you are using Docker, it must be installed. For more information see

  • The user defined to run DWCC must have read access to all resources being cataloged.

  • The computer running dwcc needs a Java Runtime Environment (JRE), version 11 or higher. (OpenJDK available here)

Basic parameters

These are the basic parameters needed to run the collector. A list of all parameter options is at the end of this article. Where available, either short (e.g., -a) or long (--account) forms can be used.

Writing the DWCC command

The easiest way to create your DWCC command is to:

  1. Copy the example below

  2. Edit it for your organization and data source

  3. Open a terminal window in any Unix environment that uses a Bash shell (e.g., MacOS and Linux) and paste your command into it.

The example command includes the minimal parameters required to run the collector (described below)--your instance may require more. A description of all the available parameters is at the end of this article. Edit the command by adding any other parameters you wish to use, and by replacing the values for all your parameters with your information as appropriate. Parameters required by the collector are in bold.

Detailed information about the Docker portion of the command can be found here. When you run the command, run will attempt to find the image locally, and if it doesn't find it, it will go to Dockerhub and download it automatically:Introduction to Docker