public Map<TConsensusGroupId, TRegionReplicaSet> getRegionPriorityMap() {
    return routeBalancer.getRegionPriorityMap();
  }
Get the latest RegionPriorityMap.

@return Map<RegionGroupId, RegionPriority>.
iotdb-core/confignode/src/main/java/org/apache/iotdb/confignode/manager/load/LoadManager.java