@Override
  public void onConsensusGroupStatisticsChanged(ConsensusGroupStatisticsChangeEvent event) {
    balanceRegionLeader();
    balanceRegionPriority();
    handleBalanceAction();
  }
Wait for the specified RegionGroups to finish routing priority calculation.

@param regionGroupIds Specified RegionGroupIds
iotdb-core/confignode/src/main/java/org/apache/iotdb/confignode/manager/load/balancer/RouteBalancer.java