@Override
  public CreateNamespaceResponse createNamespace(RpcController controller,
    CreateNamespaceRequest request) throws ServiceException {
    try {
      long procId =
        server.createNamespace(ProtobufUtil.toNamespaceDescriptor(request.getNamespaceDescriptor()),
          request.getNonceGroup(), request.getNonce());
      return CreateNamespaceResponse.newBuilder().setProcId(procId).build();
    } catch (IOException e) {
      throw new ServiceException(e);
    }
  }
Returns list of blocking services and their security info classes that this server supports
hbase-server/src/main/java/org/apache/hadoop/hbase/master/MasterRpcServices.java