Missing Listener Process

Hi,
I've just installed 9.201 on WinXp and used the database configuration assistant to create me two instances.
This is the first time I have installed v9, though I have installed Oracle8i many times.
The problem is that I don't have a listener process. I'm not sure why one has not been created. I selected for a dedicated server install, but I didn't think that would make this difference.
Any ideas gratefully received as to why I don't have a listener and why I have to do to create it now.
cheers
Tony

You can create a listener using the Net Configuration Assistant, but if you just want to create a basic listener with default values that will auto detect your instances, just run the following command in a command window:
c:\> lsnrctl startAfter reporting that there is no configuration file, it will create its file and its service and then start the listener process.
Nothing to it.
I tend to prefer manual scripts and commands to GUI tools. I use GUI tools from time to time, but they can be quite a crutch for a DBA. I always want to be aware of what is going on behind those tools.
Kind regards,
Russ Cannon

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Copyright (c) 1991, 2004, Oracle. All rights reserved.
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Just a follow-up to this thread. We have now been able to start and successfully login to the e-Business Suite.
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Greetings -
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though its a general process to stop the listener before shutting down the database for cold backup. but is it so that if you don't stop the listener before giving shutdown immediate command, the shutdown process takes long time than normal expected time?
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No version, as usual, and the answer is version specific.
Why is it so difficult to include those 4 digits?
Dear all,
though its a general process to stop the listener
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but is it so that if you don't stop the listener
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>
because as per my understanding, the listener process
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shutdown command the database automatically rejects
any new connections. your valuable comments are
required.--
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Senior Oracle DBA

Problem with listener process

Hi all,
First, happy new year for everybody.
I'm under Linux and i have a problem with a listener process in Oracle 10g 10.1.0.3.
From time to time, my listener process hang-up and it becomes impossible to obtain a Oracle connection.
With unix 'ps' command, i can see strange process.
# ps auxw | grep lsn
oracle 27728 0.0 0.1 37100 4760 ? S Dec23 0:02 /u01/app/oracle/product/10.1.0/db_1/bin/tnslsnr LISTENER -inherit
oracle 17161 0.0 0.1 37100 4760 ? S Dec25 0:00 /u01/app/oracle/product/10.1.0/db_1/bin/tnslsnr LISTENER -inherit
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oracle 18146 0.0 0.0 16144 4064 ? S Dec25 0:00 /u01/app/oracle/product/10.1.0/db_1/bin/lsnrctl
oracle 31474 0.0 0.1 17332 4588 ? S Dec25 0:00 /u01/app/oracle/product/10.1.0/db_1/perl/bin/perl /u01/app/oracle/product/10.1.0/db_1/sysman/admin/scripts/lsnrresp.pl
oracle 309 0.0 0.1 18688 5892 ? S Dec25 0:00 /u01/app/oracle/product/10.1.0/db_1/perl/bin/perl /u01/app/oracle/product/10.1.0/db_1/sysman/admin/scripts/lsnr_log_status.pl
oracle 326 0.0 0.0 2128 904 ? S Dec25 0:00 sh -c /u01/app/oracle/product/10.1.0/db_1/bin/lsnrctl > /tmp/zlihqS914Z
oracle 327 0.0 0.0 16148 4072 ? S Dec25 0:00 /u01/app/oracle/product/10.1.0/db_1/bin/lsnrctl
oracle 752 0.0 0.0 2128 908 ? S Dec25 0:00 sh -c /u01/app/oracle/product/10.1.0/db_1/bin/lsnrctl > /tmp/K5geR0wcyN
oracle 753 0.0 0.1 16160 4220 ? S Dec25 0:00 /u01/app/oracle/product/10.1.0/db_1/bin/lsnrctl
oracle 4270 0.0 0.0 2120 908 ? S Dec25 0:00 sh -c /u01/app/oracle/product/10.1.0/db_1/bin/lsnrctl > /tmp/9ov0ZwbS5e
oracle 4271 0.0 0.1 16156 4224 ? S Dec25 0:00 /u01/app/oracle/product/10.1.0/db_1/bin/lsnrctl
oracle 9227 0.0 0.0 2132 908 ? S Dec25 0:00 sh -c /u01/app/oracle/product/10.1.0/db_1/bin/lsnrctl > /tmp/qv5iJttPbm
oracle 9228 0.0 0.1 16168 4216 ? S Dec25 0:00 /u01/app/oracle/product/10.1.0/db_1/bin/lsnrctl
... etc ...
root 9310 0.0 0.0 1612 472 pts/2 S 08:35 0:00 grep lsn
If a stop and restart the listener, i don't have any more problem.
I suspect OEM agent because each time i noted the problem, the agent was running .
What occurs? Thanks for your help.

Hi,
we had exactly the same problem this morning with our listener. We don't run OEM, and the listener.log file didn't have any errors in it. The log shows new connections up to the point where the second process starts (we know this from date stamps on the processes) and the next thing that appears is the listener starting again (after I've killed both listener processes and started the listener again)
log extract
09-JUN-2006 09:50:53 * (CONNECT_DATA=(SID=orac10g)(CID=PROGRAM=C:\Program Files\Precedent Version 2\PFW2.exe)(HOST=05BLG297)(USER=pettsc))) * (ADDRESS=(PROTOCOL=tcp)(HOST=172.16.204.76)(PORT=1451)) * establish * orac10g * 0
TNSLSNR for IBM/AIX RISC System/6000: Version 10.2.0.1.0 - Production on 09-JUN-2006 10:03:42
Copyright (c) 1991, 2005, Oracle. All rights reserved.
System parameter file is /oracle/product/10.2.0/network/admin/listener.ora
Log messages written to /oracle/product/10.2.0/network/log/listener.log
Trace information written to /oracle/product/10.2.0/network/trace/listener.trc
Trace level is currently 0
Started with pid=3178550
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=churchill.blg.co.uk)(PORT=1521)))
According to the actual process - the secondary lsnr process's parent was the initial one. It's almost like the first process spawned the second one.
We thought it might be one of the limits (we're running AIX 5) on the user running the process - but I suspect not as the same user is running the Oracle DB processes and they don't have any issues.
Thoughts?
Dave

How do I monitor the listener process

After starting the listener, I have to wait for few min. before I connect to the database.
Otherwise I get the following error.
How do I monitor the listener process and make sure, still it is trying to
establishing connection with oracle instance ?
thanks
siva

After starting the listener, I have to wait for few
min. before I connect to the database.That's normal when the registration is dynamic (no SID_LIST in listener.ora). This does not happen if the listener is started before the DB. See http://download-uk.oracle.com/docs/cd/B19306_01/network.102/b14212/architecture.htm#sthref429
But you can force the registration. As sysdba do
SQL> alter system register;
or you can statically configure your DB within listener.ora, SID_LIST section.
How do I monitor the listener process $ lsnrctl status
and
$ lsnrctl services

TNS-01151: Missing listener name

I found the following error in er.log. Does anyone know what this means? I am unable to start the listener service because of this.
TNSLSNR for 32-bit Windows: Version 8.1.5.0.0 - Production on 07-MAY-01 11:46:07
(c) Copyright 1998 Oracle Corporation. All rights reserved.
System parameter file is D:\Oracle\iSuites\network\admin\listener.ora
Log messages written to D:\Oracle\iSuites\network\log\er.log
TNS-01151: Missing listener name, er, in LISTENER.ORA

Check the HOST and PORT parameters in your
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LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = <machine>)(PORT = 1521))
Hope this helps
Ranga

Any major differences of exadata database, listener, processes than regular RAC environment?

I would like to ask for any input regarding any major differences of exadata database, listener, processes than regular RAC environment.
I know now the exadata not only have SCAN listener, but a lot other listeners. can expert here provide more details?
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We will use zfs to do backups, is that possible for the initiband listener to communicate with ZFS? where I can find documents for zfs?
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Rogue listener process spawned

Hi.
If this alert is raised, what is the best course of action?
$ ps -ef | grep lsn
root 2997 1 0 2008 ? 00:00:00 [ocfslsnr]
oracle 5517 1 0 2008 ? 00:16:36 /u01/oracle/product/10.1.0/db_1/bin/tnslsnr LISTENER_02 -inherit
Looks like there is only 1 listener, or two listener processes?
Thanks.
DA
Edited by: Dan A on Mar 28, 2009 4:45 AM

You forgot to mention your environment (OS and version,database version), but obviously you're running OCFS (Oracle Cluster Filesystem), ocfslsnr is the OCFS listener,not the regular database listener.
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null

Create and configure it. See Section 5:
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Oracle 10g listener processes on linux

Hi,
We have databases (10.1.0.3) running on linux x86 (RH AS3) and Tru64 unix.
I have noticed on linux that there are a number of processes for each listener whilst on Tru64 the listener has only one process.
Can anyone explain why linux has these extra processes?
Thanks
Mark

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