RE: spfile/listener question

  • From: Graeme Farmer <graeme.farmer@xxxxxxxxxx>
  • To: "'oracle-l@xxxxxxxxxxxxx'" <oracle-l@xxxxxxxxxxxxx>
  • Date: Tue, 29 Jun 2004 20:40:23 +1000

It is not essential to have a listener.ora, provided you want to have the
listener run on the default port (1521) it will start up without a config
file.

HOWEVER, that would NOT be a good idea as changing from the default port is
mandatory from a security perspective, as is setting a password, admin
restrictions, etc, etc...

When using a non-default port, then automatic listener registration is only
possible via the LOCAL_LISTENER parameter in (s)pfile. This can be set to a
TNS alias that resolves to the correct host/port combination or you can
enter a connect descriptor; and, as Ray pointed out, the listener needs to
be started prior to any registration or indeed listening taking place!

Cheers,
gf

-----Original Message-----
From: Feighery Raymond [mailto:Raymond.Feighery@xxxxxxxxxxxxx]
Sent: Tuesday, 29 June 2004 6:14 PM
To: 'oracle-l@xxxxxxxxxxxxx'
Subject: RE: spfile/listener question

You haven't started the listener.
Dynamic registration via the init.ora file means you don't have to modify
the listener.ora for each new database entry (e.g. you don't have to add an
extra SID_LIST entry). However, you still have to define the LISTENER in the
listener.ora for the listener itself and start it.

Ray

-----Original Message-----
From: Scott.Shafer@xxxxxxxxxxxxxxxxxx
[mailto:Scott.Shafer@xxxxxxxxxxxxxxxxxx]
Sent: Monday, June 28, 2004 6:31 PM
To: oracle-l@xxxxxxxxxxxxx
Subject: spfile/listener question


Odd question time:
RTFM'd until we're blue, but we can't get the listener services to register
when specified in the init.ora vs a listener.ora file. HR Apps 11.5.7 on
Oracle 9.2.0.5, HPUX 11.11.

We're trying to set the listener in the init.ora/spfile using the
parameters:
LOCAL_LISTENER=db1
SERVICE_NAMES=db1.us.acme.com
INSTANCE_NAME=db1

tnsnames.ora entry looks like:
db1= (DESCRIPTION= (ADDRESS=(PROTOCOL=tcp)(HOST=dbserver)(PORT=1421)))

As SYSDBA we've done the:
ALTER SYSTEM SET LOCAL_LISTENER='db1'

When we check the listener via lsnrctl we can not detect the services.
$TNS_ADMIN is set correctly.

LSNRCTL> set current_listener db1
LSNRCTL> services
Connecting to (ADDRESS=(PROTOCOL=TCP)(HOST=xxx.xxx.xxx.xxx)(PORT=1421))
TNS-12541: TNS:no listener
 TNS-12560: TNS:protocol adapter error
  TNS-00511: No listener
   HPUX Error: 239: Connection refused

Anyone out there gone through this exercise successfully?

Thanks,

Scott


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