How To Fix SAI_CACHE821 - Rollback LUW

SAP Error Message - Details

• Message type: E = Error

• Message class: SAI_CACHE - XI Configuration Cache

• Message number: 821

• Message text: Rollback LUW

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SAI_CACHE821 - Rollback LUW ?

  The SAP error message SAI_CACHE821 Rollback LUW typically indicates that there was an issue during a database operation that required a rollback of the Logical Unit of Work (LUW). This can occur in various scenarios, often related to caching or data consistency issues in the SAP system.
  Causes:
  
  Database Lock Conflicts: If multiple transactions are trying to access the same data simultaneously, it can lead to lock conflicts, causing a rollback.
  Data Consistency Issues: If the data being processed is inconsistent or violates integrity constraints, the system may trigger a rollback.
  Cache Issues: Problems with the SAP caching mechanism can lead to inconsistencies, prompting a rollback.
  Network Issues: Temporary network failures or interruptions during database operations can also lead to rollbacks.
  System Resource Limitations: Insufficient memory or CPU resources can cause transactions to fail and roll back.
  
  Solutions:
  
  Check for Lock Conflicts: Use transaction codes like SM12 to check for and resolve any lock entries that may be causing conflicts.
  Review Application Logs: Use transaction SLG1 to check application logs for more detailed error messages that can provide insights into the cause of the rollback.
  Database Consistency Checks: Run consistency checks on the database to ensure that there are no integrity issues.
  Clear Cache: If the issue is related to caching, consider clearing the cache using transaction SM12 or SM21 to refresh the cache.
  Monitor System Resources: Check system performance and resource usage to ensure that there are no bottlenecks affecting transaction processing.
  Review Network Stability: Ensure that the network connection between the application server and the database server is stable and reliable.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM12 (for lock entries), SLG1 (for application logs), and SM21 (for system logs).
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address specific issues related to the SAI_CACHE821 error.
  System Configuration: Review the configuration settings for your SAP system, particularly those related to database connections and caching mechanisms.
  Consult Documentation: Refer to SAP documentation for best practices on managing database transactions and handling rollbacks.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP Basis team or reach out to SAP support for further assistance.