Hi there,
    I have a question about the replica and replication factor. 
    For example, I have a cluster of 6 nodes in the same data center. 
Replication factor RF is set to 3  and the consistency level is default 1. 
According to this calculator http://www.ecyrd.com/cassandracalculator/, every 
node will store 50% of the data.
    When I want to read all data from the cluster, how many nodes should I read 
from, 2 or 1? Is it 2, because each node has half data? But in the calculator 
it show 1: You are really reading from 1 node every time.
   Any suggestions? Thanks!

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