How To Fix MDG_HDB_SEARCH016 - Error while closing the SQL connection

SAP Error Message - Details

• Message type: E = Error

• Message class: MDG_HDB_SEARCH -

• Message number: 016

• Message text: Error while closing the SQL connection

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message MDG_HDB_SEARCH016 - Error while closing the SQL connection ?

  The SAP error message MDG_HDB_SEARCH016 typically indicates an issue related to the SQL connection in the context of SAP Master Data Governance (MDG) when it is trying to close a connection to the HANA database. This error can arise due to various reasons, including network issues, database configuration problems, or resource limitations.
  Possible Causes:
  
  Network Issues: Intermittent network connectivity problems between the application server and the HANA database can lead to connection closure errors.
  Database Configuration: Misconfigurations in the HANA database settings or connection parameters can cause issues when attempting to close connections.
  Resource Limitations: If the HANA database is under heavy load or if there are resource constraints (like memory or CPU), it may not be able to handle connection requests properly.
  Timeout Settings: If the connection timeout settings are too low, it may lead to premature closure of connections.
  Driver Issues: Problems with the database driver or client libraries can also lead to connection handling errors.
  
  Solutions:
  
  Check Network Connectivity: Ensure that there are no network issues between the application server and the HANA database. You can use tools like ping or traceroute to diagnose connectivity.
  Review Database Configuration: Verify the HANA database configuration settings, including connection parameters, user permissions, and resource allocations.
  Monitor Database Performance: Use HANA monitoring tools to check for performance bottlenecks. Look for high CPU or memory usage and optimize queries or increase resources if necessary.
  Adjust Timeout Settings: Review and adjust the connection timeout settings in the SAP application and HANA database to ensure they are appropriate for your environment.
  Update Drivers: Ensure that you are using the latest version of the HANA database drivers and client libraries. Sometimes, bugs in older versions can lead to connection issues.
  Check Logs: Review the application and database logs for any additional error messages or warnings that could provide more context about the issue.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to MDG and HANA for any known issues or patches that might address this error.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Documentation: Refer to the official SAP documentation for MDG and HANA for best practices on connection management and troubleshooting.
  
  If the issue persists after trying the above solutions, it may be beneficial to contact SAP support for further assistance, providing them with detailed logs and error messages for a more in-depth analysis.