How To Fix RSD_TREX522 - Find indexes with status "Unknown" ('&1')

RSD_TREX522 - Overview

• Message type: E = Error

• Message class: RSD_TREX - Messages from TREX Aggregate Area

• Message number: 522

• Message text: Find indexes with status "Unknown" ('&1')

Description
This test checks whether the system has indexes of BWA indexes with
status "Unknown" (= U). This can only occur in rare exceptions when the
COMMIT call (CommitOptimize) is terminated during indexing.
It is then not clear whether or not the data of the previous indexing
call is available.
Repair
These indexes are rebuilt in repair mode.

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 RSD_TREX522 - Find indexes with status "Unknown" ('&1') ?

  The SAP error message RSD_TREX522 indicates that there are indexes in the TREX (Text Retrieval and Extraction) system with a status of "Unknown." This can occur in the context of SAP BW (Business Warehouse) or SAP HANA environments where TREX is used for text search and indexing.
  
  Cause:
  The "Unknown" status for indexes typically arises from one of the following reasons:
  
  Index Corruption: The index may have become corrupted due to system issues or improper shutdowns.
  Inconsistent State: The index might be in an inconsistent state due to failed updates or other operational issues.
  
  Configuration Issues: There may be configuration problems in the TREX system or the underlying database.
  System Upgrades or Migrations: Changes in the system, such as upgrades or migrations, can lead to indexes being left in an unknown state.
  
  
  Solution:
  To resolve the RSD_TREX522 error, you can follow these steps:
  
  
  Check Index Status:
  
  Use transaction code RSD1 to check the status of the indexes in the InfoProvider.