How To Fix CNV_IUUC_REPLICATION380 - Error occurred when opening DB connection

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_IUUC_REPLICATION - IUUC replication messages (HANA)

• Message number: 380

• Message text: Error occurred when opening DB connection

An error occurred while trying to establish the connection to the target
system. Possible reasons for this include:
Wrong user name or password.
The target system is not responding, or is down.
An invalid host name was entered.
The prerequisites for using an encrypted connection are not met.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_IUUC_REPLICATION380 - Error occurred when opening DB connection ?

  The SAP error message CNV_IUUC_REPLICATION380 indicates that there was an issue when trying to open a database connection during the data replication process. This error is often associated with the SAP Landscape Transformation (SLT) replication server, which is used for real-time data replication from source systems to SAP HANA or other target systems.
  Causes
  
  Database Connectivity Issues: The most common cause is a failure in the connection to the database. This could be due to network issues, incorrect connection parameters, or the database server being down.
  Configuration Errors: Incorrect configuration settings in the SLT system or the database connection settings can lead to this error.
  Authorization Issues: The user credentials used for the database connection may not have the necessary permissions to access the database.
  Database Driver Issues: Problems with the database driver or the version of the driver being used can also cause connection failures.
  Resource Limitations: The database server may be experiencing resource limitations (e.g., memory, CPU) that prevent new connections from being established.
  
  Solutions
  
  
  Check Database Connectivity:
  
  Verify that the database server is up and running.
  Test the network connection between the SLT server and the database server.
  Use tools like ping or telnet to check connectivity.
  
  
  
  Review Connection Parameters:
  
  Ensure that the connection parameters (hostname, port, database name, user, password) are correct in the SLT configuration.
  Check the configuration in transaction LTRC (SLT Configuration) for any discrepancies.
  
  
  
  Check User Authorizations:
  
  Ensure that the user account used for the database connection has the necessary permissions to access the database and perform replication tasks.
  
  
  
  Examine Logs:
  
  Check the SLT logs for more detailed error messages. You can find logs in transaction LTRC under the "Log" tab.
  Review the database logs for any errors or warnings that might indicate the cause of the connection failure.
  
  
  
  Database Driver:
  
  Ensure that the correct database driver is installed and configured properly. If necessary, update the driver to a compatible version.
  
  
  
  Resource Monitoring:
  
  Monitor the database server for resource usage. If the server is under heavy load, consider optimizing queries or increasing resources.
  
  
  
  Restart Services:
  
  If all else fails, consider restarting the SLT replication server or the database server to clear any transient issues.
  
  
  
  Related Information
  
  SAP Notes: Check SAP Notes related to SLT and the specific error message for any patches or updates that may address known issues.
  Documentation: Refer to the official SAP documentation for SLT for detailed configuration and troubleshooting steps.
  Community Forums: Engage with the SAP Community or forums for insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to diagnose and resolve the CNV_IUUC_REPLICATION380 error effectively.