Hello, I know this is an older thread, but ...
If some slots are left empty it doesn't necessarily mean that machine resources are wasted. Some managed memory might be unavailable, but CPU, heap memory, network, and disk are shared across slots. To the extent there are multiple operators executing within a slot, multiple threads are executing consuming those resources. It's not clear what the actual performance degradation would be, if any. Correct? David -- Sent from: http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/