Could you confirm what you mean by:
"activated only one node".
- You didn't start the second instance, and
leave it to the cluster manager to fail over
the package and start the second instance
if the first instance fails
- You changed the tnsnames.ora so that
all connections went to the first instance,
and did nothing else
(load_balance = off)
(failover = on)
- You restarted both instances after setting
the 'active_instance_count' to 1, so that
RAC would start up in a proper
primary/secondary state - with the entire
global resource directory held on the
primary node ? (And adjusted tnsnames.ora
accordingly).
Regards
Jonathan Lewis
http://www.jlcomp.demon.co.uk/faq/ind_faq.html
The Co-operative Oracle Users' FAQ
http://www.jlcomp.demon.co.uk/seminar.html
Optimising Oracle Seminar - schedule updated Sept 19th
- from the mail-----
>Hi All,
>
>I has oracle9i database with RAC using 2 nodes.
>The first time i used them, i activated server load
>balancing, so user connect to least loaded instance.
>
>But after i checked 'gcs/ges wait' related to cache
>fusion, that is very large, i activate only one node,
>and use another node as failover node.
>What i expected here was, i want to reduce
>intercluster operations for sql/dml.
>
>The problem i still got was, when one table was
>actively update by many users and i did full table
>scan on it, it's quite slow. I have compared it with
>non-RAC database, it's about 2-3 times slower.
>I have activated sql trace, and found many2 of 'global
>cr request' wait on that full table scan.
>
--
http://www.freelists.org/webpage/oracle-l
Received on Thu Oct 21 2004 - 08:09:32 CDT
