How To Fix ESH_HANA_ADMIN126 - Enterprise Search is running on TREX

SAP Error Message - Details

• Message type: E = Error

• Message class: ESH_HANA_ADMIN - ESH HANA Index Administration

• Message number: 126

• Message text: Enterprise Search is running on TREX

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message ESH_HANA_ADMIN126 - Enterprise Search is running on TREX ?

  The SAP error message ESH_HANA_ADMIN126 indicates that the Enterprise Search is currently running on TREX (Text Retrieval and Information Extraction), which is not the intended configuration for systems that are supposed to use SAP HANA as the search engine. This error typically arises when there is a misconfiguration in the search setup, particularly when the system is expected to use HANA for search functionalities but is still configured to use TREX.
  Cause:
  
  Configuration Issue: The system is configured to use TREX instead of HANA for Enterprise Search.
  System Migration: If the system was recently migrated or upgraded, the configuration might not have been updated to reflect the use of HANA.
  Missing Components: The necessary components or services for HANA-based search might not be installed or activated.
  
  Solution:
  
  
  Check Configuration:
  
  Go to the SAP HANA Administration Console or the relevant configuration settings in your SAP system.
  Ensure that the Enterprise Search is configured to use HANA as the search engine.
  
  
  
  Adjust Settings:
  
  If the system is intended to use HANA, you may need to adjust the settings in the SAP NetWeaver Administrator or the SAP HANA Studio to switch from TREX to HANA.
  This may involve changing the search service settings in the system configuration.
  
  
  
  Re-indexing:
  
  After changing the configuration, you may need to re-index the search data to ensure that the search functionality works correctly with HANA.
  
  
  
  Check for Updates:
  
  Ensure that your SAP system is up to date with the latest patches and updates, as there may be fixes related to search functionalities.
  
  
  
  Consult Documentation:
  
  Refer to the official SAP documentation for Enterprise Search and HANA to ensure that all necessary steps have been followed for configuration.
  
  
  
  Contact SAP Support:
  
  If the issue persists after checking the configuration and making necessary adjustments, consider reaching out to SAP Support for further assistance.
  
  
  
  Related Information:
  
  SAP HANA: A high-performance in-memory database that can be used for various applications, including Enterprise Search.
  TREX: A search engine used in earlier versions of SAP systems for text retrieval and search functionalities.
  Enterprise Search: A feature that allows users to search across various data sources within the SAP landscape.
  
  By ensuring that your system is correctly configured to use HANA for Enterprise Search, you should be able to resolve the ESH_HANA_ADMIN126 error.