Re: Simple listener parameter question

From: Maureen English <>
Date: Sat, 06 Dec 2008 16:00:17 -0900
Message-ID: <>

Mark, (others who responded);

We are not using RAC. We are, however using different clustered systems (HP Tru64, Linux, Solaris, HPUX).

We have multiple databases running on each cluster, and each database has its own listener, thus its own port #.

What we found on the linux cluster using crs was that when I set the local_listener parameter using localhost, everything seemed to work fine. I connected to the listener and listed the services and the IP number that showed up was the one for the database alias, not the one for the actual machine that it was running on.

We don't use tnsnames, we use OID and the connect information there only names the database alias and port. The only specific information in the listener.ora file is the port number...we never use the default port numbers....

I was also able to connect to this database from another machine with no problems. Basically, not setting the parameter is not an option. We usually set it to the alias for the database (, which is technically the same as localhost, I think.

Dan, thanks for the info about the Metalink document. I'll take a look at that on Monday.

  • Maureen

Bobak, Mark wrote:
> Hi Maureen,
> One reason I can think of to not use the definition you've specified, is RAC. In the RAC environment, you'll want to specify a VIP address for the local listener. Other than that, if you're not on RAC, leave local_listener unset, and it will default to port 1521 on the localhost.
> Hope that helps,
> -Mark
> ________________________________________
> From: [] On Behalf Of Maureen English []
> Sent: Saturday, December 06, 2008 1:16 AM
> To:
> Subject: Simple listener parameter question
> Hi,
> For those of you who have a LISTENER running on the same machine
> as your database(s), do you configure the local_listener parameter
> to have the actual host name, or localhost? Does anyone know of
> any reason not to use something like
> local_listener='(ADDRESS=(PROTOCOL=TCP)(HOST=localhost)(PORT=1234))'
> - Maureen
> --

Received on Sat Dec 06 2008 - 19:00:17 CST

Original text of this message