You can use certain PowerExchange messages and commands to monitor the extraction of change data by CDC sessions.
Use the following types of PowerExchange messages and output for monitoring extractions:
Read progress messages. You can request that PowerExchange write messages that indicate the number of change records read by a CDC session.
Extraction statistics messages. When extraction sessions end, PowerExchange writes messages that include statistical information about the change records processed.
Multithreaded processing statistics messages. You can request that PowerExchange write statistical information about CDC sessions that use multithreaded processing.
DISPLAY ACTIVE or LISTTASK command. Use one of these PowerExchange Listener commands, based on your operating system and mode of command execution, to list active CDC sessions. For more information about these commands, see the