Home » RDBMS Server » Networking and Gateways » ORA-12518 Tns: Listener does not currently know of service (Oracle 10g,10.2.0.5,Redhat Enterprice linux 5.4)
ORA-12518 Tns: Listener does not currently know of service [message #576035] Thu, 31 January 2013 00:22 Go to next message
AnilKampiri
Messages: 69
Registered: September 2012
Location: Chennai
Member

Dear All,

Today we faced below error
ORA-12518 Tns: Listener does not currently know of service

from application server using client 10g to connect our database.This problem happens only in application server and we tried from another server we can connect to database easily but problem only in application server.Kindly advice reason for this error since TNSNAMES and network are properly hosted since there no network disconnection betwwen database server and application server.

Regards,
Anil
Re: ORA-12518 Tns: Listener does not currently know of service [message #576037 is a reply to message #576035] Thu, 31 January 2013 00:44 Go to previous message
Michel Cadot
Messages: 59814
Registered: March 2007
Location: Nanterre, France, http://...
Senior Member
Account Moderator
ORA-12518: TNS:listener could not hand off client connection
 *Cause: The process of handing off a client connection to another process
 failed.
 *Action: Turn on listener tracing and re-execute the operation. Verify
 that the listener and database instance are properly configured for
 direct handoff.  If problem persists, call Oracle Support.
 *Comment: The problem can be worked around by configuring dispatcher(s)
 to specifically handle the desired presentation(s), and connecting
 directly to the dispatcher, bypassing the listener.


Regards
Michel
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