How To Fix BRAIN_DEV027 - Cache in database cannot be used

SAP Error Message - Details

• Message type: E = Error

• Message class: BRAIN_DEV - BRAIN messages (for use by development)

• Message number: 027

• Message text: Cache in database cannot be used

What causes this issue?

SIDs for characteristic values are only valid in the current session.

System Response

Cache mode "Database" cannot be used. Cache mode "Local" will be used
instead.

How to fix this error?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message BRAIN_DEV027 - Cache in database cannot be used ?

  The SAP error message BRAIN_DEV027: Cache in database cannot be used typically occurs in the context of SAP BW (Business Warehouse) or SAP HANA environments. This error indicates that there is an issue with the cache that is supposed to be used for data retrieval or processing. Here are some potential causes, solutions, and related information for this error:
  Causes:
  
  Cache Corruption: The cache in the database may be corrupted or not properly initialized.
  Database Connectivity Issues: There may be issues with the connection to the database, preventing the cache from being accessed.
  Configuration Issues: Incorrect configuration settings in the BW or HANA system can lead to cache-related errors.
  Data Model Changes: Changes in the data model or structure may lead to inconsistencies in the cache.
  Insufficient Resources: Lack of memory or other resources on the database server can prevent the cache from being utilized.
  
  Solutions:
  
  
  Clear Cache: Try clearing the cache in the database. This can often resolve issues related to corruption or outdated data.
  
  In SAP BW, you can do this through transaction codes like RSADMIN or RSRT.
  In SAP HANA, you can use SQL commands to clear specific caches.
  
  
  
  Check Database Connectivity: Ensure that the connection to the database is stable and functioning correctly. Check for any network issues or database service outages.
  
  
  Review Configuration Settings: Verify the configuration settings in the BW or HANA system. Ensure that all necessary parameters for caching are correctly set.
  
  
  Rebuild the Cache: If the cache is corrupted, you may need to rebuild it. This can involve reloading data into the system.
  
  
  Monitor System Resources: Check the system resources (CPU, memory, disk space) on the database server. If resources are low, consider optimizing the system or upgrading hardware.
  
  
  Check for Updates: Ensure that your SAP system is up to date with the latest patches and updates, as these may contain fixes for known issues.
  
  
  Consult SAP Notes: Look for relevant SAP Notes in the SAP Support Portal that may address this specific error message. SAP Notes often provide detailed troubleshooting steps and solutions.
  
  
  Related Information:
  
  SAP BW Documentation: Review the official SAP BW documentation for information on caching mechanisms and best practices.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  SAP Support: If the issue persists, consider reaching out to SAP Support for assistance, especially if it impacts production systems.
  
  By following these steps, you should be able to diagnose and resolve the BRAIN_DEV027 error in your SAP environment.