Dear List I found a strange behavior on our mini cluster during update with consistency level quorum.
We have a cluster with 4 nodes. ReplicationFactor is 2, ReplicaPlacment is the RackAwareStrategy and the EndpointSnitch is the PropertyFileEndpointSnitch (with two data center and two racks each). My understanding is, that with this parameter of the cluster, it should be possible to update with consistency level quorum while one data center (two nodes) are shutdown completely. During testing I observed that this is not in every case true. It depends on the node on which you are connected for the update. Let me explain this more detailed: During the tests only Node1 (D1R1) and Node2 (D1R2) are up and running. Node3 (D2R1) and Node4 (D2R2) are shutdown. In both tests I'm connected to Node1 and update the row: 'TEST'. Case1: If 'TEST' was previous stored on Node1, Node2, Node3 -> The update will succeed. Case2: If 'TEST' was previous stored on Node2, Node3, Node4 -> The update will not work. In both case at least two nodes, which are required for quorum, are alive. So is this a bug or is my interpretation of the cluster parameters wrong? Best Sam
