Hi All!
I noticed that with RAC, if user sessions are active, and one node fails, the
sessions connected to that node first throw errors, and then automatically
reconnect to the other node. I was expecting there would be no error, just
continuous connectivity.
So, to address this issue, I have configured TAF on the client side. Here is
the tnsnames.ora entry:
mydb = (DESCRIPTION = (ADDRESS = (PROTOCOL =TCP)(HOST = my.scan.listener
)(PORT = 1521) ) (CONNECT_DATA = (SERVER = DEDICATED)
(SERVICE_NAME=mydb.domain) (FAILOVER_MODE = (TYPE = SELECT)
(METHOD = PRECONNECT) ) ) ) I then opened a session to RAC and stopped
the instance which the session was connected to, but there was no change in
behaviour. I got an ORA-03113 at the client connection when I reissued the
select statement, and then reissuing the select again gave me normal output.
Is this just the way RAC works or am I missing something? Am I using TAF
properly? Should a select statement just continue with a delay but no error
when the node it's connected to goes down?
Thanks in advance!-ck
