RAC - remote Listener problem

Hey guys, I got a call with the support of the oracle, but they are just to slow down, so I need to ask the real experts in :-)

I have 2 CCR node with 3 databases on this subject.
Also I have 2 more machine that have installed the connection manager, and those that are used to connect to the database via a web application. Everything is good...

I created an entry to listener for the cluster of connection manager and set the parameter remote_listener for this entry.
Thus, one of the 3 database registers its service on the connection manager. Still all good. Life of the connection the webapp works very well.

BUT! When I try a local sql (connect sys/password@dbsrv as sysdba) connection sometimes TNS error code.
ORA-12514: TNS:listener is not currently of service requested in connect
Descriptor. tnsping works fine for the database. the normal listener also shows the correct state of the database
lsnrctl status...
Service 'dbsrv' has 1 instance (s).
'Dbsrv1' instance, State LOAN, has 2 managers of this service...
....

When I put the remote_listener parameter 'scan_listener:1521' sql connection cluster works.
Also I can´t get a valid cluster resource connection state in enterprise manager, when the remote_listener parameter is set to cman listener.
When the parameter is set to the name of the scan enterprise cluster manager works fine as well
But when his game up to the listener to cluster, the database is registered to the listener of connection manager. If no connection is possible.

So two questions left...
Can I have an entry for the connection manager in the tnsnames.ora and set the parameter remote_listener for this entry?
What impact does -
Why is a local sql connect is not possible when the remote_listener parameter is not set?

The EM is a no prior problem, but ideas to that as well?

Hi Christian,

what I mean by that, you can include 2 settings in the entry of remote_listener. So include SCAN + CMAN:

ALTER system set remote_listener = "SCAN - cluster:1521","(DESCRIPTION=(address_list=(address=(protocol=tcp)(host=cmahost01)(port=1610))(address=(protocol=tcp)(host=cmahost02)(port=1610)))";

It would be possible to do something like:

ALTER system set remote_listener = "SCAN-cluster: 1521", "cman_listener";

as well, but I have not tried.
If you set this, just check after a record of system alter, if CMAN both SCAN knows the database service (lsnrctl status )

Sebastian

Tags: Database

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