Dedicated Connection Requests Failing With ORA-12519: TNS: No Appropriate Service Handler Found
Last updated on MAY 27, 2015
Applies to:Oracle Net Services - Version 18.104.22.168 to 22.214.171.124 [Release 9.2 to 11.2]
Information in this document applies to any platform.
***Checked for relevance on 17-DEC-2012***
The problem occurs when the listener is configured with a VIP address, the pfile setting for DB_NAME is different from the value for SID specified in the connect string, listener.ora has a static handler, and shared server is configured. Under these circumstances, when a dedicated connection request is made, the request would fail with an ORA-12519: TNS: No appropriate service handler found
The pfile setting for DB_NAME is different from the SID specified in the client's tnsnames.ora file and the listener is configured with VIP address. Also, the client will likely have the (SERVER=DEDICATED) clause in their tns connect string that demands they bypass the registered handlers for DISPATCHERS.
Sign In with your My Oracle Support account
Don't have a My Oracle Support account? Click to get started
My Oracle Support provides customers with access to over a
Million Knowledge Articles and hundreds of Community platforms