How To Fix RS_DB_ADA021 - Check indexes and recover at &1

SAP Error Message - Details

• Message type: E = Error

• Message class: RS_DB_ADA - MaxDB-Specific Messages

• Message number: 021

• Message text: Check indexes and recover at &1

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 RS_DB_ADA021 - Check indexes and recover at &1 ?

  The SAP error message RS_DB_ADA021, which states "Check indexes and recover at &1," typically indicates an issue related to database indexes in the context of SAP BW (Business Warehouse) or SAP HANA. This error can arise during data loading or reporting processes when the system detects inconsistencies or corruption in the database indexes.
  Cause:
  
  Corrupted Indexes: The indexes on the database tables may be corrupted or inconsistent, which can happen due to various reasons such as system crashes, improper shutdowns, or issues during data loading.
  Data Consistency Issues: If there are inconsistencies in the data being loaded or processed, it can lead to problems with the indexes.
  Database Maintenance: Lack of regular maintenance or optimization of the database can lead to performance issues and errors related to indexes.
  
  Solution:
  
  
  Check Indexes: 
  
  Use the database tools or transaction codes (like DB02 for DB performance analysis) to check the status of the indexes. Look for any inconsistencies or errors reported.
  
  
  
  Rebuild Indexes: 
  
  If the indexes are found to be corrupted, you may need to rebuild them. This can usually be done through the database management tools or SQL commands specific to your database system (e.g., REINDEX command in PostgreSQL, or similar commands in other databases).
  
  
  
  Database Recovery: 
  
  If rebuilding the indexes does not resolve the issue, you may need to perform a recovery operation. This could involve restoring from a backup if the corruption is severe.
  
  
  
  Data Consistency Check: 
  
  Run consistency checks on the data to ensure that there are no underlying issues causing the index corruption. This can involve using transaction codes like RSA1 for data warehousing or specific database consistency checks.
  
  
  
  Consult SAP Notes: 
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. There may be patches or updates that can resolve known issues related to this error message.
  
  
  
  Database Maintenance: 
  
  Regularly perform database maintenance tasks such as updating statistics, optimizing tables, and checking for fragmentation to prevent future occurrences of this error.
  
  
  
  Related Information:
  
  SAP Notes: Always refer to the SAP Notes for the latest information and specific instructions related to your version of SAP and the database you are using.
  Database Documentation: Consult the documentation for your specific database (e.g., Oracle, SQL Server, HANA) for commands and procedures related to index management and recovery.
  SAP Community: Engage with the SAP Community forums for insights and experiences from other users who may have encountered similar issues.
  
  If the problem persists after trying the above solutions, it may be necessary to involve your database administrator or SAP support for further assistance.