EM 10g - Listener does not show up on DB home, but is running. Why??

Question

Oracle Version          10.2.0.1.0
Microsoft Windows Server 2003 R2 Server 5.2 Service Pack 2 (32-bit)
LSNRCTL> start LISTENER
Starting tnslsnr: please wait...
TNSLSNR for 64-bit Windows: Version 10.2.0.1.0 - Production
System parameter file is D:\oracle\product\10.2.0\db_1\network\admin\listener.ora
Log messages written to D:\oracle\product\10.2.0\db_1\network\log\listener.log
Trace information written to D:\oracle\product\10.2.0\db_1\network\trace\listener.trc
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=\\.\pipe\EXTPROC1ipc)))
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=us-as1.nti2.org)(PORT=1521)))
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1)))
STATUS of the LISTENER
Alias LISTENER
Version TNSLSNR for 64-bit Windows: Version 10.2.0.1.0 - Production
Start Date 22-OCT-2007 11:42:18
Uptime 0 days 0 hr. 0 min. 5 sec
Trace Level user
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File D:\oracle\product\10.2.0\db_1\network\admin\listener.ora
Listener Log File D:\oracle\product\10.2.0\db_1\network\log\listener.log
Listener Trace File D:\oracle\product\10.2.0\db_1\network\trace\listener.trc
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=\\.\pipe\EXTPROC1ipc)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=us-as1.nti2.org)(PORT=1521)))
Services Summary...
Service "PLSExtProc" has 1 instance(s).
Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfully
========================================================
LSNRCTL> status LISTENER
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1)))
STATUS of the LISTENER
Alias LISTENER
Version TNSLSNR for 64-bit Windows: Version 10.2.0.1.0 - Production
Start Date 22-OCT-2007 11:42:18
Uptime 0 days 0 hr. 14 min. 8 sec
Trace Level user
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File D:\oracle\product\10.2.0\db_1\network\admin\listener.ora
Listener Log File D:\oracle\product\10.2.0\db_1\network\log\listener.log
Listener Trace File D:\oracle\product\10.2.0\db_1\network\trace\listener.trc
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=\\.\pipe\EXTPROC1ipc)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=us-as1.nti2.org)(PORT=1521)))
Services Summary...
Service "PLSExtProc" has 1 instance(s).
Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
Service "orcl.us-as1.nti2.org" has 1 instance(s).
Instance "orcl", status READY, has 1 handler(s) for this service...
Service "orclXDB.us-as1.nti2.org" has 1 instance(s).
Instance "orcl", status READY, has 1 handler(s) for this service...
Service "orcl_XPT.us-as1.nti2.org" has 1 instance(s).
Instance "orcl", status READY, has 1 handler(s) for this service...
The command completed successfully
======================================================
C:\Documents and Settings\pierrel>netstat -a
Active Connections
Proto Local Address Foreign Address State
TCP us-as1:smtp us-as1.nti2.org:0 LISTENING
TCP us-as1:http us-as1.nti2.org:0 LISTENING
TCP us-as1:nntp us-as1.nti2.org:0 LISTENING
TCP us-as1:epmap us-as1.nti2.org:0 LISTENING
TCP us-as1:microsoft-ds us-as1.nti2.org:0 LISTENING
TCP us-as1:nntps us-as1.nti2.org:0 LISTENING
TCP us-as1:kpop us-as1.nti2.org:0 LISTENING
TCP us-as1:1110 us-as1.nti2.org:0 LISTENING
TCP us-as1:1111 us-as1.nti2.org:0 LISTENING
TCP us-as1:1117 us-as1.nti2.org:0 LISTENING
TCP us-as1:1119 us-as1.nti2.org:0 LISTENING
TCP us-as1:1158 us-as1.nti2.org:0 LISTENING
TCP us-as1:1521 us-as1.nti2.org:0 LISTENING
==================================================
init.ora
# $Header: init.ora 25-jul-01.18:03:38 rajayar Exp $
# Copyright (c) 1991, 2001, Oracle Corporation. All rights reserved. */
# Example INIT.ORA file
# This file is provided by Oracle Corporation to help you customize
# your RDBMS installation for your site. Important system parameters
# are discussed, and example settings given.
# Some parameter settings are generic to any size installation.
# For parameters that require different values in different size
# installations, three scenarios have been provided: SMALL, MEDIUM
# and LARGE. Any parameter that needs to be tuned according to
# installation size will have three settings, each one commented
# according to installation size.
# Use the following table to approximate the SGA size needed for the
# three scenarious provided in this file:
# -------Installation/Database Size------
# SMALL MEDIUM LARGE
# Block 2K 4500K 6800K 17000K
# Size 4K 5500K 8800K 21000K
# To set up a database that multiple instances will be using, use the
# same file for all instance. Place all instance-specific parameters
# at the end of the file using the <sid>.<parameter_name> = <value> syntax.
# This way, when you change a public
# parameter, it will automatically change on all instances. This is
# necessary, since all instances must run with the same value for many
# parameters. For example, if you choose to use private rollback segments,
# these must be specified differently for each instance, but since all gc_*
# parameters must be the same on all instances, they should be in one file.
# INSTRUCTIONS: Edit this file and the other INIT files it calls for
# your site, either by using the values provided here or by providing
# your own.
# replace "clustdb" with your database name
db_name = clustdb
compatible=9.0.0
db_files = 1024 # INITIAL
#INITIAL
#db_files=80
#SMALL
#DB_files=400
#MEDIUM
#db_files=1000
#LARGE
control_files = ("\\.\clustdb_control1", "\\.\clustdb_control2")
db_file_multiblock_read_count = 8 # INITIAL
# db_file_multiblock_read_count = 8
#SMALL
#db_file_multiblock_read_count = 16
#MEDIUM
#db_file_multiblock_read_count = 32
#LARGE
#Datawarehouse
db_block_size=8192
# Transaction processing
# db_block_size=4096
open_cursors=300
#Transaction processing
#sort_area_size=524288
#Datawarehouse
sort_area_size=1048576
large_pool_size=1048576 #Transaction processing, Datawarehouse
db_cache_size=50331648 #Datawarehouse, Transaction processing
java_pool_size=67108864 #Datawarehouse, Transaction processing
# db_block_buffers = 200 # INITIAL
# db_block_buffers=100 #SMALL
# db_block_buffers =550 # MEDIUM
# db_block_buffers=3200 #LARGE
#shared_pool_size = 52428800 # INITIAL
shared_pool_size = 67108864 # datewarehouse, transaction processing
log_checkpoint_interval = 10000
processes = 59 # INITIAL
# processes = 50
#SMALL
#processes = 100
#MEDIUM
#processes = 200
#LARGE
parallel_max_servers = 5
#SMALL
# parallel_max_servers = 4 x (number of CPUs)
#MEDIUM
# parallel_max_servers = 4 x (number of CPUs)
# LARGE
log_buffer = 8192 # INITIAL
#log_buffer = 8192
#SMALL
#log_buffer = 32768
#MEDIUM
#log_buffer = 163840
#LARGE
# audit_trail = true # if you want auditing
# timed_statistics = true # if you want timed statistics
max_dump_file_size = 10240 # limit trace file size to 10 K each
# Uncommenting the line below will cause automatic archiving if archiving has
# been enabled using ALTER DATABASE ARCHIVELOG.
# log_archive_start = true
# log_archive_dest = %ORACLE_HOME%/admin/clustdb/arch
# log_archive_format = "%%ORACLE_SID%%T%TS%S.ARC"
# If using private rollback segments, place lines of the following
# form at the end of this file:
# <sid>.rollback_segments = (name1, name2)
# If using public rollback segments, define how many
# rollback segments each instance will pick up, using the formula
# # of rollback segments = transactions / transactions_per_rollback_segment
# In this example each instance will grab 40/10 = 4:
# transactions = 40
# transactions_per_rollback_segment = 10
# Global Naming -- enforce that a dblink has same name as the db it connects to
global_names = TRUE
# Edit and uncomment the following line to provide the suffix that will be
# appended to the db_name parameter (separated with a dot) and stored as the
# global database name when a database is created. If your site uses
# Internet Domain names for e-mail, then the part of your e-mail address after
# the '@' is a good candidate for this parameter value.
# db_domain = us.acme.com # global database name is db_name.db_domain
# Uncomment the following line if you wish to enable the Oracle Trace product
# to trace server activity. This enables scheduling of server collections
# from the Oracle Enterprise Manager Console.
# Also, if the oracle_trace_collection_name parameter is non-null,
# every session will write to the named collection, as well as enabling you
# to schedule future collections from the console.
# oracle_trace_enable = TRUE
# define directories to store trace and alert files
background_dump_dest=%ORACLE_HOME%/admin/clustdb/bdump
user_dump_dest=%ORACLE_HOME%/admin/clustdb/
db_block_size = 4096
remote_login_passwordfile = exclusive
# text_enable = TRUE
# The following parameters are needed for the Advanced Replication Option
job_queue_processes = 2
# job_queue_processes = 4 #datawarehouse
# job_queue_interval = 10
# job_queue_keep_connections = false
distributed_transactions = 5
open_links = 4
# The following parameters are instance-specific parameters that are
# specified for two instances named clustdb1 and clustdb2
undo_management=AUTO # For automatic undo management
# = MANUAL For manual/RBS undo management
cluster_database= true
cluster_database_instances=2
remote_listener=LISTENERS_CLUSTDB
# First instance specific parameters
clustdb1.thread=1
clustdb1.instance_name=clustdb1
clustdb1.instance_number=1
clustdb1.local_listener=listener_clustdb1
clustdb1.remote_login_passwordfile = exclusive
# Comment out clustdb1.undo_tablespace and uncomment clustdb1.rollback_segments
# when undo_management=MANUAL
clustdb1.undo_tablespace = UNDOTBS1
# clustdb1.rollback_segments = (rbs1_1,rbs1_2)
# Second instance specific parameters
clustdb2.thread=2
clustdb2.instance_name = clustdb2
clustdb2.instance_number = 2
clustdb2.local_listener = listener_clustdb2
clustdb2.remote_login_passwordfile = exclusive
# Comment out clustdb2.undo_tablespace and uncomment clustdb2.rollback_segments
# when undo_management=MANUAL
clustdb2.undo_tablespace = UNDOTBS2
# clustdb2.rollback_segments = (rbs2_1,rbs2_2)
===========================================
listener.ora
# listener.ora Network Configuration File: D:\oracle\product\10.2.0\db_1\NETWORK\ADMIN\listener.ora
# Generated by Oracle configuration tools.
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = D:\oracle\product\10.2.0\db_1)
(PROGRAM = extproc)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = us-as1.nti2.org)(PORT = 1521))
TRACE_LEVEL_LISTENER = USER
===============================================
sqlnet.ora
# sqlnet.ora Network Configuration File: D:\oracle\product\10.2.0\db_1\network\admin\sqlnet.ora
# Generated by Oracle configuration tools.
# This file is actually generated by netca. But if customers choose to
# install "Software Only", this file wont exist and without the native
# authentication, they will not be able to connect to the database on NT.
SQLNET.AUTHENTICATION_SERVICES= (NTS)
NAMES.DIRECTORY_PATH= (TNSNAMES, EZCONNECT)
=================================================
tnsnames.ora
# tnsnames.ora Network Configuration File: D:\oracle\product\10.2.0\db_1\network\admin\tnsnames.ora
# Generated by Oracle configuration tools.
ORCL =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = us-as1.nti2.org)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl.us-as1.nti2.org)
EXTPROC_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
(CONNECT_DATA =
(SID = PLSExtProc)
(PRESENTATION = RO)
============================================================

Answer 1

Enterprise manager still requires a static service definition in listener.ora and does not rely on dynamic registration.
From documentation:
The SID_LIST is required for backward compatibility with Oracle8 or Oracle7 databases, as well as external procedures and heterogeneous services, and some management tools, including Oracle Enterprise Manager.
Werner