@Override
  public void initialize(PartitionedRegionLoadModel model) {
    this.model = model;
    satisfyRedundancy = initialSatisfyRedundancy;
    movePrimaries = initialMovePrimaries;
    satisfyRedundancyDirector.initialize(model);
    movePrimariesDirector.initialize(model);
  }
The FPR director performs rebalancing operations for a fixed partitioned region. There two things
a fixed partitioned region does during rebalancing: - Create redundant buckets in a known
location - move primaries to the appropriate member.

Note that unlike other directors, this director performs all the work in a call to nextStep.
geode-core/src/main/java/org/apache/geode/internal/cache/partitioned/rebalance/FPRDirector.java