How To Fix MDC_HDB_MTC020 - Error while connecting to SAP HANA

SAP Error Message - Details

• Message type: E = Error

• Message class: MDC_HDB_MTC - Message class for master data consolidation matching

• Message number: 020

• Message text: Error while connecting to SAP HANA

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 MDC_HDB_MTC020 - Error while connecting to SAP HANA ?

  The SAP error message MDC_HDB_MTC020 typically indicates that there is an issue with connecting to the SAP HANA database. This error can arise due to various reasons, and understanding the cause is essential for troubleshooting. Below are some common causes, potential solutions, and related information for this error:
  Causes:
  
  Network Issues: There may be network connectivity problems between the application server and the SAP HANA database.
  Incorrect Connection Parameters: The connection parameters (host, port, user credentials) may be incorrect or misconfigured.
  Database Availability: The SAP HANA database might be down or not running.
  Firewall Restrictions: Firewalls may be blocking the connection to the SAP HANA database.
  User Authorization: The user credentials used for the connection may not have the necessary permissions to access the database.
  Configuration Issues: There may be issues with the configuration of the database or the application server.
  
  Solutions:
  
  
  Check Network Connectivity:
  
  Ensure that the application server can reach the SAP HANA database server. You can use tools like ping or telnet to test connectivity.
  
  
  
  Verify Connection Parameters:
  
  Double-check the connection parameters in your configuration (host, port, username, password) to ensure they are correct.
  
  
  
  Check Database Status:
  
  Verify that the SAP HANA database is up and running. You can check this using the SAP HANA Studio or command line tools.
  
  
  
  Review Firewall Settings:
  
  Ensure that any firewalls between the application server and the SAP HANA database are configured to allow traffic on the required ports (default is 30015 for HANA).
  
  
  
  User Authorization:
  
  Confirm that the user account being used to connect has the necessary permissions to access the database. You may need to check with your database administrator.
  
  
  
  Configuration Review:
  
  Review the configuration settings in the SAP system and ensure that they are set up correctly for connecting to the HANA database.
  
  
  
  Check Logs:
  
  Look at the logs for more detailed error messages that can provide additional context about the connection failure.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to the specific error message for any patches or updates that may address the issue.
  Documentation: Refer to the official SAP documentation for guidelines on configuring connections to SAP HANA.
  Support: If the issue persists, consider reaching out to SAP Support for further assistance.
  
  By systematically checking these areas, you should be able to identify and resolve the cause of the MDC_HDB_MTC020 error.