public void startLoadServices() {
    loadCache.initHeartbeatCache(configManager);
    heartbeatService.startHeartbeatService();
    statisticsService.startLoadStatisticsService();
    eventService.startEventService();
    partitionBalancer.setupPartitionBalancer();
    topologyService.startTopologyService();
  }
Re-balance the DataPartitionPolicyTable.

@param database Database name
iotdb-core/confignode/src/main/java/org/apache/iotdb/confignode/manager/load/LoadManager.java