I know that Cassandra have different read consistency levels but I haven't seen a consistency level which allows as read data by key only from one node. I mean if we have a cluster with a replication factor of 3 then we will always ask all nodes when we read. Even if we choose a consistency level of one we will ask all nodes but wait for the first response from any node. That is why we will load not only one node when we read but 3 (4 with a coordinator node). I think we can't really improve a read performance even if we set a bigger replication factor.
Is it possible to read really only from a single node?
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Is it possible to read data only from a single node in a Cassandra cluster with a replication factor of 3?
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