I have an Oracle database with a server IP of 184.108.40.206, and it also has a virtual IP of 10.10.10.10. The virtual...
By submitting your email address, you agree to receive emails regarding relevant topic offers from TechTarget and its partners. You can withdraw your consent at any time. Contact TechTarget at 275 Grove Street, Newton, MA.
IP is the way some of my clients must hit the database with the use of tnsnames.ora(host=10.10.10.10) instead of the actual IP address. Those clients are receiving 12502 errors and the listener log is showing these errors also. Is there anything special I need to do?
Here's what the Error Messages guide says about the TNS-12502 error:
TNS-12502 TNS:listener received no CONNECT_DATA from client
Cause: No CONNECT_DATA was passed to the listener.
Action: Check that the service name resolved from TNSNAMES.ORA has the CONNECT_DATA component of the connect descriptor.
So, the first step is to check your TNSNAMES.ORA file that the clients are using and verify that it looks something like this:
ORCL = (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = 10.10.10.10)(PORT = 1521)) ) (CONNECT_DATA = (SERVICE_NAME = ORCL) ) )It sounds like you're missing some information.
For More Information
- Dozens more answers to tough Oracle questions from Karen Morton are available.
- The Best Oracle Web Links: tips, tutorials, scripts, and more.
- Have an Oracle or SQL tip to offer your fellow DBAs and developers? The best tips submitted will receive a cool prize. Submit your tip today!
- Ask your technical Oracle and SQL questions -- or help out your peers by answering them -- in our live discussion forums.
- Ask the Experts yourself: Our SQL, database design, Oracle, SQL Server, DB2, metadata, object-oriented and data warehousing gurus are waiting to answer your toughest questions.
Dig Deeper on Oracle error messages
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.