@Override
  public IsNormalizerEnabledResponse isNormalizerEnabled(RpcController controller,
    IsNormalizerEnabledRequest request) {
    IsNormalizerEnabledResponse.Builder response = IsNormalizerEnabledResponse.newBuilder();
    response.setEnabled(server.isNormalizerOn());
    return response.build();
  }
Triggers an asynchronous attempt to take a snapshot. {@inheritDoc}
hbase-server/src/main/java/org/apache/hadoop/hbase/master/MasterRpcServices.java