How To Fix ESH_HANA_ADMIN128 - Enterprise Search is running on connected HANA server (Sidecar scenario)

SAP Error Message - Details

• Message type: E = Error

• Message class: ESH_HANA_ADMIN - ESH HANA Index Administration

• Message number: 128

• Message text: Enterprise Search is running on connected HANA server (Sidecar scenario)

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 ESH_HANA_ADMIN128 - Enterprise Search is running on connected HANA server (Sidecar scenario) ?

  The SAP error message ESH_HANA_ADMIN128 indicates that the Enterprise Search (ES) is currently running on a connected HANA server in a sidecar scenario. This typically means that the Enterprise Search system is trying to connect to a HANA database that is already in use or has some configuration issues.
  Cause:
  
  HANA Server Already in Use: The HANA server might be already connected to another instance of Enterprise Search or another application, leading to conflicts.
  Configuration Issues: There may be misconfigurations in the connection settings between the Enterprise Search and the HANA server.
  Resource Limitations: The HANA server might be experiencing resource limitations (CPU, memory) that prevent it from handling additional connections.
  Version Mismatch: There could be a version mismatch between the Enterprise Search and the HANA server, leading to compatibility issues.
  
  Solution:
  
  Check Connections: Verify if the HANA server is already connected to another instance. If so, you may need to disconnect that instance or configure your system to use a different HANA server.
  Review Configuration: Check the configuration settings in the Enterprise Search and ensure that the connection parameters (like host, port, user credentials) are correctly set.
  Monitor HANA Resources: Use HANA monitoring tools to check the resource usage. If the server is under heavy load, consider optimizing queries or increasing resources.
  Update Software: Ensure that both the Enterprise Search and HANA server are running compatible versions. If there are updates available, consider applying them.
  Restart Services: Sometimes, simply restarting the Enterprise Search service or the HANA server can resolve transient issues.
  Check Logs: Review the logs for both the Enterprise Search and HANA server for any additional error messages or warnings that could provide more context on the issue.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to Enterprise Search and HANA for any known issues or patches that might address this error.
  Documentation: Refer to the official SAP documentation for Enterprise Search and HANA for best practices on configuration and troubleshooting.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  
  If the problem persists after trying the above solutions, consider reaching out to SAP Support for further assistance.