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Client Connection To Global Service Fail With ORA-12541: TNS:no listener (Doc ID 2317825.1)

Last updated on JUNE 17, 2021

Applies to:

Oracle Database - Enterprise Edition - Version and later
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Gen 1 Exadata Cloud at Customer (Oracle Exadata Database Cloud Machine) - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Information in this document applies to any platform.



NOTE: In the images and/or the document content below, the user information and environment data used represents fictitious data from the Oracle sample schema(s),Public Documentation delivered with an Oracle database product or other training material. Any similarity to actual environments, actual persons, living or dead, is purely coincidental and not intended in any manner.

For the purposes of this document, the following fictitious environment is used as an example to describe the procedure:

Database Name: Standby
Global Service Manager: gsm3
directory= (/u01/app/oracle) and all subdirectories
SQL Net Service: TEST
Service Name: standby.gdspool.oradbcloud
Region: region1



[Order of process]
1) Implemented data guard
2) Configured gsm environment - configured a region which is named "region1" and opening it normally.
3) Configuring a new buddy region in addition
4) Configuring an additional gsm server which belong to buddy region
5) Client fails to connect to database via buddy region like below.





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