First of all, you should verify that nodes discover each other (search logs for 'Topology snapshot' lines). Your configuration looks a bit weird, try providing it like this:
<property name="addresses"> <list> <value>10.144.114.113:47500..47502</value> <value>10.144.114.114:47500..47502</value> <value>10.144.114.115:47500..47502</value> </list> </property> In any case, are you providing the same amount of load when adding third node? In other words, are there always the same amount of threads on client side? If yes, then most likely system is just not overloaded even with two servers, so adding another one doesn't make difference. You should increase number of client threads until throughput stops growing with 2 servers, and than add third one to check scalability. -Val -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/