How To Fix DHCDC_REC208 - Logging table &1 is already processed by observer process

SAP Error Message - Details

• Message type: E = Error

• Message class: DHCDC_REC - Message for Recording Area of CDC ABAP Agent

• Message number: 208

• Message text: Logging table &1 is already processed by observer process

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DHCDC_REC208 - Logging table &1 is already processed by observer process ?

  The SAP error message DHCDC_REC208 indicates that a logging table (denoted as &1) has already been processed by an observer process. This typically occurs in the context of data replication or change data capture (CDC) processes within SAP systems, particularly when using SAP Data Services or SAP Landscape Transformation (SLT).
  Cause:
  
  
  Concurrent Processing: The error usually arises when multiple processes attempt to access or modify the same logging table simultaneously. This can happen if:
  
  An observer process is already running and has locked the logging table.
  Another process tries to access the same logging table before the first process has completed its operation.
  
  
  
  Configuration Issues: There may be misconfigurations in the CDC setup or the observer process that lead to improper handling of logging tables.
  
  
  Long-Running Transactions: If a transaction takes too long to complete, it can lead to timeouts or conflicts with other processes trying to access the same resources.
  
  
  Solution:
  
  
  Check Running Processes: 
  
  Use transaction codes like SM50 or SM66 to monitor active processes in the system. Identify if there is an active observer process that is currently processing the logging table.
  If you find a stuck or long-running process, you may need to terminate it if it is safe to do so.
  
  
  
  Wait for Completion: If the observer process is legitimate and processing data, you may need to wait for it to complete before attempting to access the logging table again.
  
  
  Review Configuration: 
  
  Check the configuration settings for the CDC or SLT setup to ensure that they are correctly defined and optimized for your environment.
  Ensure that the observer processes are configured to handle concurrent access appropriately.
  
  
  
  Increase Timeout Settings: If long-running transactions are common, consider increasing the timeout settings for the observer processes to allow them more time to complete their tasks.
  
  
  Error Handling: Implement error handling in your data replication logic to gracefully manage situations where logging tables are locked or in use.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to the specific error message or the CDC/SLT processes for any patches or updates that may address known issues.
  Documentation: Review the official SAP documentation for Data Services or SLT for best practices on managing observer processes and logging tables.
  Performance Monitoring: Regularly monitor system performance and process execution times to identify potential bottlenecks or issues before they lead to errors.
  
  If the problem persists after trying the above solutions, consider reaching out to SAP support for further assistance, providing them with detailed logs and system information to help diagnose the issue.