Statistically it's very unlikely that all big subscriptions (or many of them) will end up together. So I would check if there is an issue first and go from there.
Technically you can implement your own AffinityFunction to customize distribution. But that's not a trivial task as you will have to consider all the cases of nodes going out of topology, scaling out, etc. -Val -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/