private int getMinActiveReplicas(PartitionId partitionId) {
    return clusterManagerQueryHelper.getMinActiveReplicas(partitionId);
  }
Gets the number of replicas for a partition in the local datacenter.
@param partition The partition to check.
@return The number of replicas in the local datacenter.
ambry-prioritization/src/main/java/com/github/ambry/replica/prioritization/ReplicationPrioritizationManager.java