Thanks, Ilya for your message. 
I am aware of the cost of enforcing Serializability. What I am more
concerned about is if I am achieving Ignite's best or not? Specifically,
since I am not performing any replication and I have only one server right
now, I should be getting a performance somewhat close a centralized database
which I assume should be much much much more than 600 txns/sec 





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