I do see some messages of unnecessary switchovers between servers but not too many,
I have set the Inactive Node Timeout to a small value of 4 seconds, this was under under the circumstance that the data being logged is too critical and the switchover must happen within very little time incase of failure of any one of the FactorySQL or OPC Servers.
So is 15 second the minimum recommended failover time?
With regards to average group execution time, the groups present in the project vary so much in their usage and logic and well one should not be affecting all of them, I will try increasing the Inactive Node Timeout to 15 seconds and see what happens. Any Other suggestion would be appreciated also.