Hi All,
I have RAC with 2 nodes which are Oracle 10.2.0.3 on Linux Servers.

As soon as I reboot one of the instances, I am not able to connect to the database any more and getting error message:

"ORA-12514: TNS:listener does not currently know of service requested in connect descriptor"

Code:
RACTEST =
	(DESCRIPTION =
		(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.40.7)(PORT = 1521))
		(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.40.9)(PORT = 1521))
		(LOAD_BALANCE = yes)
		(CONNECT_DATA =
		(SERVER = DEDICATED)
		(SERVICE_NAME = orcltest)
		(FAILOVER_MODE =
			(TYPE = SELECT)
			(METHOD = BASIC)
			(RETRIES = 180)
			(DELAY = 5)
		)
	)
)
Please advice,