code: public HashConfigurationBuilder capacityFactor(float capacityFactor) {
        if (capacityFactor < 0) throw new IllegalArgumentException("capacityFactor must be positive");
        attributes.attribute(CAPACITY_FACTOR).set(capacityFactor);
        return this;
     }
docs: Controls the proportion of entries that will reside on the local node, compared to the other nodes in the
  cluster. This is just a suggestion, there is no guarantee that a node with a capacity factor of {@code 2} will
  have twice as many entries as a node with a capacity factor of {@code 1}.
  @param capacityFactor the capacity factor for the local node. Must be positive.