CTS_CONFIG_MSG_CL079 - Validation failed - a change log of shared memory is already active

SAP Error Message - Details

• Message type: E = Error

• Message class: CTS_CONFIG_MSG_CL - Message Class for Central CTS Configuration

• Message number: 079

• Message text: Validation failed - a change log of shared memory is already active

Self-Explanatory Message

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AnswerBot

• What is the cause and solution for SAP error message CTS_CONFIG_MSG_CL079 - Validation failed - a change log of shared memory is already active ?

  The SAP error message CTS_CONFIG_MSG_CL079 indicates that there is an issue with the change log of shared memory in the Change and Transport System (CTS). This error typically occurs when there is an attempt to activate a change log while another change log is already active. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  Active Change Log: The error arises when a change log for shared memory is already active, preventing the system from starting a new one.
  System Configuration: There may be a misconfiguration in the CTS settings or the transport landscape.
  Concurrent Processes: Multiple processes may be trying to access or modify the change log simultaneously, leading to conflicts.
  
  Solution:
  
  
  Check Active Change Logs:
  
  Use transaction code SM21 to check the system log for any active change logs or related errors.
  Use transaction code SM37 to check for any background jobs that might be running and holding the change log.
  
  
  
  Deactivate Active Change Log:
  
  If you identify an active change log that is no longer needed, you can deactivate it. This can typically be done through transaction SE03 (Transport Organizer Tools) or by using specific function modules to deactivate the change log.
  
  
  
  Restart the System:
  
  In some cases, a system restart may help clear any locks or active processes that are causing the issue.
  
  
  
  Check Configuration:
  
  Review the CTS configuration settings in transaction SPRO under the path: SAP Customizing Implementation Guide -> Basis Components -> Change and Transport System -> Transport Management System -> Configure Change and Transport System.
  Ensure that the settings are correctly configured for your transport landscape.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. There may be patches or updates that resolve known issues related to this error.
  
  
  
  Contact SAP Support:
  
  If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance. Provide them with detailed logs and steps you have already taken.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SE03: Transport Organizer Tools
  SM21: System Log
  SM37: Job Monitoring
  SPRO: Customizing Implementation Guide
  
  
  
  Documentation: Review the official SAP documentation on the Change and Transport System for more insights into configuration and troubleshooting.
  
  
  System Logs: Always check system logs for additional context around the error, as they may provide clues about what is causing the change log to remain active.
  
  
  By following these steps, you should be able to diagnose and resolve the CTS_CONFIG_MSG_CL079 error effectively.