How To Fix XC147 - Currently not possible to generate int. model; defragmentation running

SAP Error Message - Details

• Message type: E = Error

• Message class: XC - Message Class for Core Interface

• Message number: 147

• Message text: Currently not possible to generate int. model; defragmentation running

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message XC147 - Currently not possible to generate int. model; defragmentation running ?

  The SAP error message XC147 ("Currently not possible to generate int. model; defragmentation running") typically indicates that the system is unable to generate an internal model because a defragmentation process is currently in progress. This can occur in various SAP modules, particularly in the context of SAP BW (Business Warehouse) or SAP HANA.
  Cause:
  
  Defragmentation Process: The error arises when the system is performing a defragmentation of the data model or database. This process is necessary to optimize the storage and performance of the database but can temporarily lock certain operations.
  Concurrent Operations: If multiple users or processes are trying to access or modify the same data model while defragmentation is ongoing, it can lead to this error.
  System Load: High system load or resource contention can exacerbate the issue, making it more likely for operations to be blocked.
  
  Solution:
  
  Wait for Defragmentation to Complete: The simplest solution is to wait until the defragmentation process is finished. You can check the status of the defragmentation in the system logs or monitoring tools.
  Monitor System Processes: Use transaction codes like SM37 (Job Monitoring) or SM66 (Global Work Process Overview) to monitor the status of background jobs and see if defragmentation is still running.
  Check for Locks: Use transaction SM12 to check for any locks that might be causing the issue. If there are unnecessary locks, they can be released.
  Schedule Defragmentation During Off-Peak Hours: If defragmentation is a regular task, consider scheduling it during off-peak hours to minimize the impact on users.
  System Performance Tuning: If defragmentation is frequently causing issues, consider reviewing and tuning the system performance to reduce the frequency or duration of defragmentation processes.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific guidance or patches related to this error. SAP frequently updates its knowledge base with solutions for known issues.
  Documentation: Review the SAP documentation for your specific version and module to understand how defragmentation works and its impact on system operations.
  Support: If the issue persists or if you need further assistance, consider reaching out to SAP Support for help.
  
  By following these steps, you should be able to resolve the XC147 error and understand its implications on your SAP environment.