By default, under the PowerExchange CDC Publisher root installation directory, a single instanceA directory exists and contains checkpoint, config, logs, overflow, and reports subdirectories. You can create additional instance subdirectories, each with a unique directory name and separate set of subdirectories and configuration files. Consider using multiple instances if you want to process changes from a large number of source objects in multiple data streams. In this case, configure each instance to use a different set of extraction maps to process changes for different source objects. When you run the PowerExchange CDC Publisher process, specify which instance to use in the INSTANCE parameter.

For each instance that you create, perform the following configuration tasks: