Scan listener monitoring

From: Stalin Subbiah <stalinsk@xxxxxxxxx>
To: Oracle-L <oracle-l@xxxxxxxxxxxxx>
Date: Thu, 5 Jun 2014 15:29:21 -0700

We had an interesting problem few days ago in our production environment where 
one of the scan listener wasn't showing all the instances/services registered 
to it. Other 2 scans were fine. We did have scan listener fail-over to other 
active nodes when node reboots were performed.

Apparently, we had hit "Bug 12659561  after scan listener failover, database 
instance might not register to the scan listener".

I was wondering how to monitor scan listener fail-over / relocate to another 
active nodes, whenever that event happens. I looked up FAN user callouts which 
we use to monitor services up/down events but don't see anything for scan vip 
nor listener.

Any ideas?

Thanks,
Stalin
11.2.0.2.6, RH x86_64

Scan listener monitoring

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