public boolean isNormalizerOn() {
    return !isInMaintenanceMode() && getRegionNormalizerManager().isNormalizerOn();
  }
Queries the state of the {@link RegionNormalizerStateStore}. If it's not initialized, false is
returned.
hbase-server/src/main/java/org/apache/hadoop/hbase/master/HMaster.java