Re: ebs_patch or <INSTANCE>_ebs_patch services

Posted by ErmanArslansOracleBlog on Apr 29, 2023; 11:04am
URL: http://erman-arslan-s-oracle-forum.124.s1.nabble.com/ebs-patch-or-INSTANCE-ebs-patch-services-tp5198p11829.html

ORA-12521 is about not having the instance (that is given in your connect descriptor) registered in the listener that you connect to.

Just some background info about that:

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Cause: There are not any available and appropriate database instances registered with the listener, that are part of the service identified by SERVICE_NAME given in the connect descriptor and that have the specified INSTANCE_ROLE (and INSTANCE_NAME, if specified).
Action: Check to make sure that the INSTANCE_ROLE specified is correct. Run "lsnrctl services" to ensure that the instance(s) have registered with the listener and that they are ready to accept connections.
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*It may due to the TNS_ADMIN configuration of the patch filesystem..

*Just check the following MOS Note ->
Adop Prepare Failure With Error 'ORA-12521' (Doc ID 1998916.1)