How To Fix 00651 - Signal received; mode canceled

SAP Error Message - Details

• Message type: E = Error

• Message class: 00 -

• Message number: 651

• Message text: Signal received; mode canceled

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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message 00651 - Signal received; mode canceled ?

  The SAP error message "00651 Signal received; mode canceled" typically indicates that the SAP system has encountered a critical issue that has caused it to terminate unexpectedly. This error can occur due to various reasons, including system resource issues, configuration problems, or software bugs.
  Causes:
  
  Resource Limitations: Insufficient memory or CPU resources can lead to this error, especially in high-load scenarios.
  Configuration Issues: Incorrect settings in the SAP system configuration can lead to instability.
  Software Bugs: There may be bugs in the SAP kernel or other components that cause the system to crash.
  Database Issues: Problems with the underlying database, such as corruption or connectivity issues, can also trigger this error.
  Operating System Signals: The error may be caused by signals sent from the operating system, such as SIGTERM or SIGKILL, which can terminate the SAP process.
  
  Solutions:
  
  Check System Resources: Monitor the system's CPU and memory usage. If resources are low, consider upgrading hardware or optimizing the system.
  Review Configuration: Ensure that the SAP system is configured correctly. Check parameters in the instance profile and other configuration files.
  Update Software: Make sure that you are running the latest version of the SAP kernel and other components. Apply any relevant patches or updates.
  Analyze Logs: Check the SAP system logs (dev_* files) for any additional error messages or warnings that could provide more context about the issue.
  Database Health Check: Perform a health check on the database to ensure it is functioning correctly. Look for any signs of corruption or connectivity issues.
  Operating System Logs: Review the operating system logs for any signals or errors that may have led to the termination of the SAP process.
  Restart the System: In some cases, a simple restart of the SAP system may resolve transient issues.
  
  Related Information:
  
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that address this specific error message. SAP Notes often contain fixes, workarounds, or additional troubleshooting steps.
  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 and you are unable to resolve it, consider reaching out to SAP Support for assistance.
  
  Preventive Measures:
  
  Regularly monitor system performance and resource usage.
  Keep the SAP system and its components updated with the latest patches.
  Implement proper backup and recovery procedures to minimize downtime in case of critical failures.
  
  By following these steps, you should be able to diagnose and resolve the "00651 Signal received; mode canceled" error in your SAP system.