How To Fix /UI2/CACHE002 - Failed to read data BLOB from the cache

SAP Error Message - Details

• Message type: E = Error

• Message class: /UI2/CACHE -

• Message number: 002

• Message text: Failed to read data BLOB from the cache

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 /UI2/CACHE002 - Failed to read data BLOB from the cache ?

  The SAP error message /UI2/CACHE002 Failed to read data BLOB from the cache typically indicates an issue with the cache mechanism used by the SAP Fiori/UI5 applications. This error can occur for various reasons, including cache corruption, issues with the underlying database, or problems with the application itself.
  Causes:
  
  Cache Corruption: The cache may have become corrupted, leading to the inability to read the Binary Large Object (BLOB) data.
  Database Issues: Problems with the database that stores the BLOB data can also lead to this error.
  Configuration Issues: Incorrect configuration settings in the SAP system can prevent proper cache access.
  Version Mismatch: If there are inconsistencies between the versions of the UI components and the backend, it may lead to cache read failures.
  Insufficient Resources: Lack of memory or other resources on the server can also cause cache read failures.
  
  Solutions:
  
  
  Clear the Cache: 
  
  Use transaction code /UI2/FLP to access the Fiori Launchpad and clear the cache.
  You can also use the transaction /UI2/DELETE_CACHE to delete the cache entries.
  Alternatively, you can clear the cache for specific users or applications.
  
  
  
  Check Database Health: 
  
  Ensure that the database is functioning correctly. Check for any locks, performance issues, or errors in the database logs.
  Run database consistency checks if necessary.
  
  
  
  Review Configuration: 
  
  Verify the configuration settings related to the cache in the SAP system. Ensure that they are set correctly according to the best practices.
  
  
  
  Update Components: 
  
  Ensure that all components of the SAP Fiori/UI5 applications are up to date. This includes both the frontend and backend components.
  
  
  
  Monitor System Resources: 
  
  Check the system resources (CPU, memory, etc.) to ensure that the server is not under heavy load. If necessary, allocate more resources.
  
  
  
  Check Logs: 
  
  Review the application logs and system logs for any additional error messages or warnings that could provide more context about the issue.
  
  
  
  Restart Services: 
  
  Sometimes, simply restarting the relevant services or the entire SAP system can resolve transient issues.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error. SAP frequently updates its knowledge base with solutions for known issues.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  Documentation: Review the official SAP documentation for Fiori/UI5 applications for any specific guidelines related to cache management.
  
  If the issue persists after trying the above solutions, it may be necessary to involve SAP support for further investigation.