How To Fix DHCDC_CDS009 - Reconstruction of CDS view stopped; system maintenance event in process

SAP Error Message - Details

• Message type: E = Error

• Message class: DHCDC_CDS - Message Class for DHCDC_CDS

• Message number: 009

• Message text: Reconstruction of CDS view stopped; system maintenance event in process

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DHCDC_CDS009 - Reconstruction of CDS view stopped; system maintenance event in process ?

  The SAP error message DHCDC_CDS009 indicates that the reconstruction of a Core Data Services (CDS) view has been halted due to an ongoing system maintenance event. This typically occurs when there are background processes or maintenance tasks that are currently running, which can affect the ability to reconstruct or refresh the CDS view.
  Cause:
  
  Ongoing Maintenance Tasks: The system might be undergoing maintenance activities such as data updates, system upgrades, or other background jobs that lock the necessary resources.
  System Locking: Certain operations may lock the database tables or views that the CDS view relies on, preventing the reconstruction from proceeding.
  Long-running Transactions: If there are long-running transactions or processes that are holding locks on the database, this can also lead to this error.
  
  Solution:
  
  Check Background Jobs: Use transaction codes like SM37 to check for any background jobs that are currently running. If you find any jobs that are related to the CDS view or the underlying data, you may need to wait for them to complete.
  Monitor System Events: Use transaction SM12 to check for any locks that might be causing the issue. If you find locks that are no longer needed, you can release them (with caution).
  Wait for Maintenance to Complete: If the system is undergoing scheduled maintenance, you may need to wait until the maintenance is completed before attempting to reconstruct the CDS view again.
  Check System Logs: Review the system logs (transaction SLG1) for any additional information or errors that might provide more context about the maintenance event.
  Restart the Process: Once you have confirmed that no maintenance tasks are running, try to reconstruct the CDS view again.
  
  Related Information:
  
  CDS Views: Core Data Services (CDS) are a key part of the SAP HANA database and are used to define semantic data models. They can be used in various applications, including SAP Fiori apps.
  System Maintenance Events: These can include database updates, system upgrades, or other administrative tasks that may temporarily affect the availability of certain database objects.
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  
  If the issue persists after following these steps, it may be necessary to consult with your SAP Basis team or SAP support for further assistance.