Saturday, August 11, 2012

Oracle RAC Internals Presentation including Advanced Listener Configuration

Just came across this excellent presentation on RAC internals.

It has quite a few nuggets of information for RAC 11.2, well worth a read.

Understanding Oracle RAC Internals

Markus Michalewicz (
Senior Principal Product Manager Oracle RAC and Oracle RAC One Node

Couple of things I picked up (which is what I was searching on)

• Listeners used for a client connection to Oracle RAC should be managed by Oracle Clusterware and should be listening on an Oracle managed VIP.

• Using server-side TNSNAMES aliases to resolve the listener configuration is not recommended. 

• Listeners specified by the LISTENER_NETWORKS parameter should not be used in the LOCAL_LISTENER and REMOTE_LISTENER parameters. Otherwise, cross registration will happen and connections will be redirected cross networks.