Database - RAC/Scalability (MOSC)

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Behavior of RAC instance local shutdown

edited May 29, 2012 3:48AM in Database - RAC/Scalability (MOSC) 2 commentsAnswered

Hello everyone


We have a 2 node RAC database 11g R2
The application is using java based connection pooling
We are using TAF and client side load balancing and fail over

There is one application server

There are 4 connections from that application server going to the database

2 connections to instance "1" and 2 connections to instance "2"


Let us assume that on instance # 1, one of the (two connected) session is currently being used by the application for an ongoing transaction and the other session is sitting idle but it is out there just in case if there is another transaction submitted thru the application server in which case instead of creating a new connection, it will use the existing (idle) connection

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