How To Fix RSDD_ZA120 - Check for round-robin problems in indexes

RSDD_ZA120 - Overview

• Message type: E = Error

• Message class: RSDD_ZA - Messages from TREX Aggregate Area

• Message number: 120

• Message text: Check for round-robin problems in indexes

What causes this issue?

Some of the preprocessors have round-robin problems.

System Response

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

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

RSDD_ZA120 - Details

• The SAP error message RSDD_ZA120, which indicates a check for round-robin problems in indexes, typically arises in the context of SAP BW (Business Warehouse) or SAP BW/4HANA when there are issues related to the distribution of data across multiple index partitions. This can lead to performance issues or data inconsistencies.
  
  Cause:
  
  
  Data Distribution Issues: The error often occurs when the data is not evenly distributed across the index partitions. This can happen due to various reasons, such as:
  
  Changes in the data model or data load process.
  Inconsistent data loads that lead to uneven partition sizes.
  Incorrect settings in the InfoProvider or data source.
  
  
  
  Index Corruption: Sometimes, the indexes themselves may become corrupted or not properly updated, leading to inconsistencies.
  
  
  
  Configuration Issues: Misconfigurations in the settings for the InfoCube or DataStore Object (DSO) can also lead to this error.
  
  
  
  Solution:
  
  
  Check Data Distribution: 
  
  Use transaction code RSA1 to access the Data Warehousing Workbench.
  Navigate to the InfoProvider and check the