Database - RAC/Scalability (MOSC)

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odd balance between nodes with drcp

edited Sep 10, 2012 1:40AM in Database - RAC/Scalability (MOSC) 4 commentsAnswered
This is my first post on "oracle suppor community", so I'm sorry for all the mistakes.Now, my question:
I'm testing our application with rac (two nodes) with drcp. Database version is 11gR2, I set up scan and start drcp pool on both nodes.
After the setup, I run a simple test (php app) with differents concurrent values for 5 minutes an get some statistics (database and os statistics) to compare.
When I run the test with 50 concurrent users, I noticed than one of the nodes get higher connection rate than the other.
I see very high cpu utilization on one node an a little utilization on the other:

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