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  • PowerExchange for CDC and Mainframe 10.5.1
  • All Products

Table of Contents

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  1. Preface
  2. Part 1: PowerExchange Change Data Capture Introduction
  3. Part 2: CDC Components Configuration and Management
  4. Part 3: CDC Sources Configuration and Management
  5. Part 4: Change Data Extraction
  6. Part 5: Monitoring and Tuning
  7. Appendix A: CDC for z/OS Troubleshooting
  8. Appendix B: DTL__CAPXTIMESTAMP Time Stamps

CDC Guide for z/OS

CDC Guide for z/OS

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PowerExchange Agent Message Log

PowerExchange Agent Message Log

The PowerExchange Agent message log, EDMSLOG, is a SYSOUT data set that contains messages from the PowerExchange Agent and all PowerExchange CDC components that interact with the PowerExchange Agent. You can configure parameters that control aspects of the message log including its size.
The PowerExchange Agent closes the current log and allocates a new log when it reaches the message log line limit specified in AGENTCTL parameter LogLimit.
The PowerExchange Agent allocates data space storage that acts as an integration area or buffer to the message log. This storage is allocated based on the LogBuffLimit AGENTCTL parameter. The PowerExchange Agent writes to EDMSLOG any messages sent to the integration area.
If you stop the PowerExchange Agent, the other PowerExchange CDC components continue to write messages to the integration area. When you restart the PowerExchange Agent, it checks for any messages written to this data space and writes them to the EDMSLOG.
If you stop the PowerExchange Agent and the messages written to the data space exceed the value of the LogBuffLimit parameter, additional messages overwrite those at the beginning of the allocated data space, resulting in missed messages. A message in the next EDMSLOG indicates the number of messages that were missed.
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