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  • PowerExchange for CDC and Mainframe 10.5
  • All Products

Table of Contents

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  1. Preface
  2. Part 1: PowerExchange CDC Introduction
  3. Part 2: PowerExchange CDC Components
  4. Part 3: PowerExchange CDC Data Sources
  5. Part 4: Change Data Extraction
  6. Part 5: Monitoring and Tuning
  7. Appendix A: DTL__CAPXTIMESTAMP Time Stamps

CDC Guide for Linux, UNIX, and Windows

CDC Guide for Linux, UNIX, and Windows

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Cold Start Processing

Cold Start Processing

To cold start workflows and tasks, use the Cold Start command in Workflow Manager or Workflow Monitor. Alternatively, you can use the pmcmd starttask or startworkflow commands with the norecovery option.
After you request a cold start for a CDC session, the following processing occurs:
  1. PWXPC writes the following message in the session log: 
    PWXPC_12091 [INFO] [CDCRestart] Cold start requested
  2. PWXPC reads the restart tokens from only the restart token file and associates a restart token with each source in the session.
  3. PWXPC creates the initialization restart token file with the initial restart tokens.
  4. PWXPC commits the restart tokens for each source to the appropriate state tables or state file and then writes message PWXPC_12104 to the session log.
  5. PWXPC passes the restart tokens to PowerExchange. PowerExchange begins extracting change data and passing the data to PWXPC for processing.
  6. PWXPC continues processing change data from PowerExchange and committing the data and restart tokens to the targets. This processing continues until the session ends or you stop it.
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