How To Fix SRAL133 - Could not write to bgRFC RAL cache

SAP Error Message - Details

• Message type: E = Error

• Message class: SRAL - Read Access Log Message Class

• Message number: 133

• Message text: Could not write to bgRFC RAL 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 SRAL133 - Could not write to bgRFC RAL cache ?

  The SAP error message SRAL133, which states "Could not write to bgRFC RAL cache," typically indicates an issue with the background RFC (bgRFC) framework in SAP. This error can occur due to various reasons, including issues with the bgRFC configuration, database problems, or system resource limitations.
  Causes:
  
  Database Issues: Problems with the database, such as locks, corruption, or insufficient space, can prevent writing to the bgRFC cache.
  Configuration Errors: Incorrect configuration of bgRFC settings in the SAP system can lead to this error.
  Resource Limitations: Insufficient memory or CPU resources on the application server can cause failures in writing to the cache.
  Transport Layer Issues: If there are issues with the transport layer or network connectivity, it may affect bgRFC operations.
  System Bugs: There may be bugs in the SAP kernel or specific components that lead to this error.
  
  Solutions:
  
  Check Database Status: Ensure that the database is running correctly, and check for any locks or performance issues. You can use transaction codes like DB02 to monitor database performance.
  Review bgRFC Configuration: Verify the bgRFC configuration settings in transaction SM58 and SLG1. Ensure that the settings are correct and that there are no inconsistencies.
  Monitor System Resources: Use transaction SM50 or SM66 to monitor system resources. If the system is under heavy load, consider optimizing performance or increasing resources.
  Check for Locks: Use transaction SM12 to check for any locks that might be affecting bgRFC operations. Release any unnecessary locks.
  Review Logs: Check the application logs using transaction SLG1 for any related error messages that could provide more context about the issue.
  Restart bgRFC: Sometimes, restarting the bgRFC service can resolve transient issues. You can do this via transaction SM58 or by restarting the relevant application server.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that address this specific error. There may be patches or updates available that resolve known issues.
  
  Related Information:
  
  bgRFC Overview: Background RFC (bgRFC) is a framework in SAP that allows asynchronous communication between different SAP systems or between different processes within the same system.
  Transaction Codes:
  
  SM58: Monitor and manage asynchronous RFC calls.
  SLG1: Display application logs.
  SM12: Monitor and manage database locks.
  SM50/SM66: Monitor active processes and system performance.
  
  
  SAP Support: If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance.
  
  By following these steps, you should be able to diagnose and resolve the SRAL133 error in your SAP system.