private Callable<Boolean> getMetaRegionMovePlan() {
    return getRegionsMovePlan(true);
  }
Loads the specified {@link #hostname} with regions listed in the {@link #filename} RegionMover
Object has to be created using {@link #RegionMover(RegionMoverBuilder)}
@return true if loading succeeded, false otherwise
hbase-server/src/main/java/org/apache/hadoop/hbase/util/RegionMover.java