Connection problem with oracle RAC

Hello everyone I have a CAR with 2 knots when I try to log in sometimes I have a problem, after a few ok conections, this is the output:
SQL * more: release 9.2.0.1.0 - Production on Mon 5 Oct 11:43:13 2009

Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.

ERROR:
ORA-12545: Connect failed because target host or object does not exist

This the tnsnames to the customer

DBTEST2 =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP) (HOST = mxcpm9kh1407dc1-vip)(PORT = 1521))
(ADDRESS = (PROTOCOL = TCP) (HOST = mxcpm9kh1102dc1-vip)(PORT = 1521))
)
(CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = dbtest2)
(FAILOVER_MODE = (TYPE = SELECT) (METHOD = BASIC))
)
)
********************************************************+
and in the servet db, it's the tnsnames
DBTEST22 =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP) (HOST = mxcpm9kh1102dc1-vip)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = dbtest2)
(INSTANCE_NAME = dbtest22)
)
)

DBTEST21 =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP) (HOST = mxcpm9kh1407dc1-vip)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = dbtest2)
(INSTANCE_NAME = dbtest21)
)
)

LISTENERS_DBTEST2 =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP) (HOST = mxcpm9kh1407dc1-vip)(PORT = 1521))
(ADDRESS = (PROTOCOL = TCP) (HOST = mxcpm9kh1102dc1-vip)(PORT = 1521))
)

There might be a possibility that the listener is losing the database service, please check the listener services, the database is registered with the listener. Try to set the local_listener and remote_listener parameters. To connect to the RAC database to create a Service for the database in DBCA.

Surely, this will solve your problem.

Best regards
Amit Grover

Tags: Database

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