Monday, January 30, 2012

Change Listener Port For Oracle RAC

I think its useful to document this since maybe i will need it too :)


2 Node , Linux  .....

RAC database name: ORCL
Node 1 vip: myhost1-vip
Node 2 vip: myhost2-vip
Instance 1: ORCL1
Instance 2: ORCL2
New port: 1522


1) First, use netca to adjust the the listener port from 1521 to 1522. It's a good idea to use netca to do this cluster-wide and keep the OCR in check.  
NOTE: This will shutdown the listeners across both nodes.


2) In the tnsnames.ora for ASM and RDBMS, ensure the following entry exists (they'll probably be there but with the 1521 port, so adjust accordingly):

(ADDRESS = (PROTOCOL = TCP)(HOST = myhost1-vip)(PORT = 1522))
(ADDRESS = (PROTOCOL = TCP)(HOST = myhost2-vip)(PORT = 1522))

(ADDRESS = (PROTOCOL = TCP)(HOST = myhost2-vip)(PORT = 1522))

(ADDRESS = (PROTOCOL = TCP)(HOST = myhost1-vip)(PORT = 1522))

Connect to each instance and set the local_listener to parameter to either LISTENER_MYRACDB1 or 2 depending on the instance you connect to. Ensure you do this so it applies to the instance you are connected to only, and does not apply globally.

e.g. if connected to ORCL1

alter system set local_listener='LISTENER_ORCL1' sid='ORCL1';

4) Set the remote_listener parameter to LISTENERS_MYRACDB across all instances

e.g. alter system set remote_listener='LISTENERS_ORCL';

5) Repeat the above for both ASM instances

6) You should be able to start the listener on each node now.

e.g. srvctl start listener -n myhost1 

Thank you

Note :

On Single node instance all you need to do is
1-stop the listener
lsnrctl stop

2-Go to $ORACLE_HOME/network/admin/listener.ora
modified the port for new one .

3-start the listener
lsnrctl start


Osama mustafa
Oracle Database consultant

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