Networking Issues

Identify and correct Oracle Global Data Services networking issues.

• ORA-12514: TNS:listener does not currently know of service requested in connect descriptor Connection fails with ORA-12514: TNS:listener does not currently know of service requested in connect descriptor
• ORA-12516: TNS:listener could not find available handler with matching protocol stack Cause: The GDS pool database's local listener may be down. Ensure that the GDS pool database local listener is running.
• ORA-12541: TNS:no listener Cause: All global service managers may be down. Verify that the global service managers are running.
• GSM-40167: VNCR entry "" is not resolvable on GSM host GSM restart after GSM-upgrade fails with error: GSM-40167: VNCR entry "**" is not resolvable on GSM host

Parent topic: Troubleshooting Global Data Services