File extensions errors

  • Processed: Jun 27 2023 3:02AM, LogDate: Jun 27 2023 3:01AM, Server: [WARNING] ===

    At least 4 extensions for file {XXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXX} (sql\ntdbms\hekaton\engine\hadr\mtlog.cpp : 6063)

    What do the above warnings mean?

    Do they need to be investigated - if yes-how do we troubleshoot them

    or can they be ignored.





  • Thanks for posting your issue and hopefully someone will answer soon.

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  • Can anybody advise on these errors.We get so many everyday and they are just clogging the error log.Can these be avoided ? Cleared ? Fixed ? They appear to be benign in nature...but still how can I fix and not get any of these anymore. Thanks

  • Check this

    The warning message you provided appears to be related to SQL Server's Hekaton engine and specifically mentions extensions for a file with a unique identifier. While I can provide some general insights, it's important to note that specific error messages and warnings often require context and deeper investigation. Here's an analysis of the provided warning:

    At least 4 extensions for file: This part of the warning suggests that there are multiple extensions associated with a file. Extensions in this context likely refer to additional components or metadata associated with a file, possibly related to the Hekaton (In-Memory OLTP) feature.

    {XXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXX}: The placeholder {XXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXX} represents a unique identifier or name for the file in question. This identifier could be specific to your SQL Server instance.

    sql\ntdbms\hekaton\engine\hadr\mtlog.cpp : 6063: This part of the message provides information about the source file and line number in the code where the warning was generated. It indicates that this warning originates from the Hekaton engine's multi-threaded log component.

    Regarding whether these warnings need to be investigated or can be ignored:

    Investigation: It's generally advisable to investigate warnings and errors in SQL Server logs, especially when they relate to core database components like the Hekaton engine. Warnings may indicate potential issues or areas of concern.

    Context Matters: The significance of these warnings depends on the broader context of your SQL Server deployment, your specific usage of Hekaton, and any observable performance or stability issues. Investigating the source and root cause of warnings is essential to determine their impact.

    Consult Documentation and Support: To troubleshoot these warnings effectively, consider consulting the official documentation for SQL Server, especially for the version you are using. Additionally, you may want to contact Microsoft Support or seek assistance from database administrators who have expertise in SQL Server internals and Hekaton.

    Monitor Impact: Monitor your SQL Server's performance, stability, and database functionality to see if these warnings have any noticeable impact. If you observe performance degradation or other issues, it's important to address them promptly.

    Log Analysis: Analyze the complete error log entry related to these warnings for additional information or error messages that might provide more context.

    In summary, while it's essential to investigate warnings like these in SQL Server logs, the specific actions you should take will depend on the context and impact. Consult the official documentation and consider seeking assistance from experts if needed to ensure the health and reliability of your SQL Server instance.

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  • Hello Priyanka, This is the exact kind of warnings we receive... At least 8 extensions for file {xxxxxxxx-xxxx-3333-ffff-dddddddddd} (sql\ntdbms\hekaton\engine\hadr\mtlog.cpp : 6063) but they have not disrupted anything in particular..

    These errors repeatedly show up only on a couple of servers - OLAP servers. Does this have to do on how hekaton engine works for OLAP based engines ? Where do we start to troubleshoot ?

    • This reply was modified 8 months, 2 weeks ago by  mtz676.
    • This reply was modified 8 months, 2 weeks ago by  mtz676.

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