How To Fix RSDA_HDP201 - Invalid selection. Could not resolve corresponding HCAT entry

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDA_HDP -

• Message number: 201

• Message text: Invalid selection. Could not resolve corresponding HCAT entry

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSDA_HDP201 - Invalid selection. Could not resolve corresponding HCAT entry ?

  The SAP error message RSDA_HDP201: Invalid selection. Could not resolve corresponding HCAT entry typically occurs in the context of SAP Data Warehouse solutions, particularly when working with SAP HANA and Hadoop data sources. This error indicates that the system is unable to find a corresponding entry in the HCatalog (HCAT) for the data source you are trying to access.
  Causes:
  
  
  Missing HCatalog Entry: The most common cause is that the table or data source you are trying to access does not have a corresponding entry in the HCatalog. This could be due to the table not being created or registered properly in HCatalog.
  
  
  Incorrect Configuration: There may be issues with the configuration settings in the SAP system or the Hadoop environment that prevent the system from accessing the HCatalog.
  
  
  Permissions Issues: The user or service account being used may not have the necessary permissions to access the HCatalog or the specific data source.
  
  
  Network Issues: If there are connectivity issues between the SAP system and the Hadoop cluster, it may lead to this error.
  
  
  Data Source Name Mismatch: The name of the data source being referenced in SAP may not match the name in HCatalog, leading to resolution failures.
  
  
  Solutions:
  
  
  Check HCatalog Entries: Verify that the data source you are trying to access is correctly registered in HCatalog. You can do this by using tools like Apache Hive or HCatalog command-line tools to list the tables and ensure your target table exists.
  
  
  Recreate HCatalog Entry: If the entry is missing, you may need to create or register the table in HCatalog. This can typically be done using Hive commands or through the Hadoop ecosystem tools.
  
  
  Review Configuration Settings: Ensure that the connection settings between SAP and Hadoop are correctly configured. Check the JDBC connection strings, authentication methods, and any other relevant settings.
  
  
  Check User Permissions: Ensure that the user or service account has the necessary permissions to access the HCatalog and the specific data source. You may need to adjust permissions in Hadoop or HCatalog.
  
  
  Network Connectivity: Verify that there are no network issues preventing the SAP system from reaching the Hadoop cluster. Check firewalls, network configurations, and ensure that the Hadoop services are running.
  
  
  Data Source Name Verification: Double-check the name of the data source in your SAP configuration and ensure it matches exactly with the name in HCatalog, including case sensitivity.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific patches or updates related to this error message. SAP frequently releases updates that may address known issues.
  Documentation: Review the official SAP documentation for SAP HANA and Hadoop integration for best practices and troubleshooting steps.
  Community Forums: Engage with SAP community forums or support channels where other users may have encountered similar issues and can provide insights or solutions.
  
  By following these steps, you should be able to diagnose and resolve the RSDA_HDP201 error effectively.