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How To Fix SVMCRT_SESSION_MGM020 - Session <&1> was probably loaded at same time by more than one VM


SAP Error Message - Details

  • Message type: E = Error

  • Message class: SVMCRT_SESSION_MGM - Log Messages of the Session Management

  • Message number: 020

  • Message text: Session <&1> was probably loaded at same time by more than one VM

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  • 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.

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Smart SAP Assistant

  • What is the cause and solution for SAP error message SVMCRT_SESSION_MGM020 - Session <&1> was probably loaded at same time by more than one VM ?

    The SAP error message SVMCRT_SESSION_MGM020 indicates that a session (identified by <&1>) was likely loaded simultaneously by more than one Virtual Machine (VM). This situation can lead to conflicts and inconsistencies in session management, as multiple VMs attempt to access or modify the same session data concurrently.

    Cause:

    1. Concurrent Access: The primary cause of this error is that multiple instances of the application or multiple VMs are trying to access the same session data at the same time. This can happen in environments where load balancing is used, and multiple application servers are running.
    2. Session Management Issues: There may be issues with how sessions are managed within the application, leading to improper handling of session states.
    3. Configuration Issues: Misconfiguration in the application server or session management settings can also lead to this error.

    Solution:

    1. Review Session Management Configuration: Check the configuration settings for session management in your SAP environment. Ensure that sessions are being managed correctly and that there are no misconfigurations that could lead to concurrent access.
    2. Implement Locking Mechanisms: If possible, implement locking mechanisms to prevent multiple VMs from accessing the same session simultaneously. This can help ensure that only one VM can load or modify a session at a time.
    3. Load Balancer Configuration: If you are using a load balancer, ensure that it is configured correctly to route requests to the appropriate VM without causing session conflicts.
    4. Session Timeout Settings: Review and adjust session timeout settings to ensure that sessions are not held longer than necessary, which can help reduce the chances of concurrent access.
    5. Monitor and Analyze Logs: Check the application and system logs for any additional error messages or warnings that could provide more context about the issue. This can help identify patterns or specific scenarios that lead to the error.
    6. Update and Patch: Ensure that your SAP system is up to date with the latest patches and updates, as newer versions may contain fixes for known issues related to session management.

    Related Information:

    • SAP Notes: Check SAP Notes related to session management and the specific error message for any known issues or recommended solutions.
    • Documentation: Review SAP documentation on session management and best practices for configuring your environment to avoid such issues.
    • Community Forums: Engage with SAP community forums or support channels to see if other users have encountered similar issues and what solutions they have implemented.

    If the problem persists after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance.

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