Dear Cassandra experts, I have an HP Proliant ML350 G8 server, and I want to put virtual servers on it. I would like to put the maximum number of nodes for a Cassandra + Hadoop cluster. I was wondering - what is the minimum RAM and memory per node I that I need to have Cassandra + Hadoop before the performance decreases are not worth the extra nodes?
Also, what is the suggested typical number of CPU cores / Node ? Would it make sense to have 1 core / node ? Less than that ? Any insight is appreciated! Thanks very much for your time! Martin