Hello! You mentioned that you have client nodes in test setup. This means that data has to be serialized to be sent from client to server.
If you only use server nodes, you can configure them in such fashion that they never form a cluster but only function individually, and thus you should avoid rolling-upgrade problems. Anyway, Apache Ignite stores data off-heap so it has to serialize data when storing it in cache. Hope this helps, -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/
