A feature by which the PMON
process--an
instance background process--automatically
registers information with a listener. Because this information is registered
with the listener, the listener.ora
file does not need to be configured with this static information.
By default, PMON tries to register information with the default listener that uses TCP/IP on port 1521. You can configure service registration for another listener by configuring the LOCAL_LISTENER parameter in the initialization parameter file and resolve the listener name through a naming method.
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See Also: Chapter 12, Configuring and Administering the Listener, in the Oracle9i Net Services Administrator's Guide to configure the LOCAL_LISTENER parameter |
Service registration provides the listener with the following information:
Service name for each running instance of the database
Instance names(s) of the database
Service handlers (dispatchers and dedicated server) available for the instance
Dispatcher, instance, and node load information
This information enables the listener to determine how best a client connection request should be serviced.