Oracle Database Discussions

hi,
listener failed and the databasea had to be restarted.it is a production database so cant afford to restart it.
my listener.ora is as follows:

# listener.ora Network Configuration File: E:\oracle\product\10.2.0\db_1\network\admin\listener.ora
# Generated by Oracle configuration tools.

ALPSDBTEST =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = alpsdb.affinityexpress.co.in)(PORT = 1521))
)
)

LISTENER1 =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = alpsdb.affinityexpress.co.in)(PORT = 1521))
)
)

ALPSDB =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = alpsdb.affinityexpress.co.in)(PORT = 1521))
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0))
)
)

ONLINETEST =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = alpsdb.affinityexpress.co.in)(PORT = 1521))
)
)

ONLINE =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = alpsdb.affinityexpress.co.in)(PORT = 1521))
)
)

LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = alpsdb.affinityexpress.co.in)(PORT = 1521))
)
)

SID_LIST_ALPSDB =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = E:\oracle\product\10.2.0\db_1)
(PROGRAM = extproc)
)
)
CONNECT_TIMEOUT=10


now from this i am not able to find out the problem..

please help me in solving this..

thanks.