How To Fix ESH_HANA_ADMIN149 - Check whether HANA connection &1 has been modified

SAP Error Message - Details

• Message type: E = Error

• Message class: ESH_HANA_ADMIN - ESH HANA Index Administration

• Message number: 149

• Message text: Check whether HANA connection &1 has been modified

What causes this issue?

The HANA Database Connection &V1& used for Enterprise Search may have
been changed or reconfigured on your system, e.g. in one of the
following ways:
The database connection has been redirected to another server
The associated HANA DB User has been changed
The associated HANA DB User's roles or privileges have been changed so
that required authorizations are now missing
The DB schema to which the connection is pointing has been changed
The HANA Database Connection can be found in the Database Connection
Overview (Transaction DBCO) and can be checked and monitored e.g. using
the DBA Cockpit (Transaction DBACOCKPIT).

System Response

After HANA database connection changes involving the database user or
schema it can happen that buffers used for table or view existence
checks still check an old schema. In that case the outdated database
objects may not be found and cannot be deleted before they get recreated
in the new version.

How to fix this error?

In case the issue is related to a changed or reconfigured HANA database
connection the shared memory for the database connections has to be
reloaded. Proceed according to the following steps:
Reset the 'Shared Memory' for CL_HDB_ABAP_CLIENT_AREA.
The procedure is described in the solution part of note 2080292 ("How to
initialize the shared memory", Transaction SHMA -> there: open the
'Monitor' from the Toolbar -> proceed as described).
Run report ESH_REFRESH_RUNTIME_BUFFER
Restart the action you wanted to perform (connector creation, connector
update, etc.)
In other cases, when the issue is not due to the database connectivity
and the resetting the shared memory as described above does not help:
Check for further notes
If also that does not help: Contact SAP Support

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

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message ESH_HANA_ADMIN149 - Check whether HANA connection &1 has been modified ?

  The SAP error message ESH_HANA_ADMIN149 typically indicates an issue with the connection to the HANA database. This error suggests that the HANA connection specified (denoted by &1) may have been modified or is not functioning as expected. Here’s a breakdown of the potential causes, solutions, and related information for this error:
  Causes:
  
  Connection Configuration Changes: The HANA connection settings may have been altered, such as changes to the database credentials, host, or port.
  Network Issues: There may be network connectivity problems between the SAP system and the HANA database.
  Database Availability: The HANA database might be down or not reachable due to maintenance or other issues.
  Authorization Issues: The user credentials used for the connection may not have the necessary permissions to access the HANA database.
  Incorrect Connection Parameters: The connection parameters might be incorrectly configured in the SAP system.
  
  Solutions:
  
  
  Verify Connection Settings:
  
  Check the connection parameters in the SAP system (transaction code DBACOCKPIT or HANA Studio) to ensure they are correct.
  Ensure that the host, port, user, and password are accurate.
  
  
  
  Test the Connection:
  
  Use the HANA Studio or a similar tool to test the connection to the HANA database directly.
  If the connection fails, troubleshoot the network or database issues.
  
  
  
  Check Database Status:
  
  Ensure that the HANA database is up and running. You can check this through the HANA Studio or by contacting your database administrator.
  
  
  
  Review Authorization:
  
  Ensure that the user account used for the connection has the necessary permissions to access the HANA database.
  
  
  
  Check for Recent Changes:
  
  If there have been recent changes to the HANA database or the SAP system, review those changes to identify any potential impacts on the connection.
  
  
  
  Consult Logs:
  
  Check the SAP application logs and HANA logs for any additional error messages or warnings that could provide more context about the issue.
  
  
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide additional troubleshooting steps.
  Documentation: Review the official SAP documentation for HANA connectivity and configuration to ensure compliance with best practices.
  Community Forums: Engage with the SAP Community or other forums where similar issues may have been discussed, as other users may have encountered and resolved the same error.
  
  If the issue persists after following these steps, it may be beneficial to reach out to SAP support for further assistance.