Sessions are not showing in V$session in 10g RAC

Hi All,
I have 2-node 10gR2 Rac installed on RHEL4. It is up and running fine. And i'm able to connect from clients also(from other machines). My doubt is...If i connect to the RAC database using other clients, a record is showing in v$session. But if if connect to the database from one of the RAC nodes. that record is not showing up in v$session. What might be the reason?
And how can we see, which user has connected from which node in RAC?
Thanks,
Praveen.

Thanks for response...
I checked with the query which you have given and i'm able to see which user has connected from which instance.
Thanks,
Praveen

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Closing this thread even if it's not answered...Sorry, I don't have time to test this myself now, but you shouldn't mark this thread as answered if it is not, because other people might find it and think they find an answer if they have a similar question.
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