Error
Error Code:
2566
SAP S/4HANA Error 2566: Distributed Metadata TNS Client Failure
Description
Error 2566, ERR_DIST_METADATA_TNSCLIENT_FAILURE, indicates a failure in the Transparent Network Substrate (TNS) client during metadata operations within a distributed SAP S/4HANA environment. This typically occurs when an SAP component cannot establish or maintain a connection to a database or other distributed service for metadata retrieval.
Error Message
ERR_DIST_METADATA_TNSCLIENT_FAILURE
Known Causes
4 known causesNetwork Connectivity Problems
The SAP system or TNS client cannot establish a stable connection to the database server or other distributed components due to network outages or intermittent issues.
Incorrect TNS Client Configuration
The 'tnsnames.ora' file or other TNS client configuration settings on the SAP application server are misconfigured, leading to incorrect service resolution.
Database Client Software Issues
The underlying database client software (e.g., Oracle Client) required for TNS communication is corrupted, outdated, or improperly installed on the SAP application server.
Firewall or Security Restrictions
Firewalls or network security policies are blocking the necessary ports or protocols for TNS client communication between the SAP application server and the database.
Solutions
Coming SoonDetailed step-by-step solutions for this error are being prepared. In the meantime, try these general troubleshooting tips:
General Troubleshooting Tips
- Check the error message carefully for specific details
- Review recent changes that might have caused the error
- Search for the exact error code in the official documentation
- Check log files for additional context
- Try restarting the application or service