emrClusterPrices.add(createEmrClusterPrice(availabilityZone, masterPrice, corePrice, taskPrice));
emrClusterPrices.add(createEmrClusterPrice(availabilityZone, masterPrice, corePrice, taskPrice));
emrClusterPrices.add(createEmrClusterPrice(availabilityZone, masterPrice, corePrice, taskPrice));
emrClusterPrices.add(createEmrClusterPrice(availabilityZone, masterPrice, corePrice, taskPrice));