anchor.diff:  blvp = BulkLoaderVertexProgram.build().
              keepOriginalIds(false).
              writeGraph(wgConf).create(grateful)
  -grateful.compute(SparkGraphComputer).program(blvp).submit().get()
  +grateful.compute(SparkGraphComputer).workers(1).program(blvp).submit().get()
   :set max-iteration 10
   graph = GraphFactory.open(wgConf)
   g = graph.traversal()
  
positive.code: blvp = BulkLoaderVertexProgram.build().
             keepOriginalIds(false).
             writeGraph(wgConf).create(grateful)
  grateful.compute(GiraphGraphComputer).program(blvp).submit().get()
  :set max-iteration 10
  graph = GraphFactory.open(wgConf)
  g = graph.traversal()
  
negative.code: blvp = BulkLoaderVertexProgram.build().
             keepOriginalIds(false).
             writeGraph(wgConf).create(modern)
  modern.compute().workers(1).program(blvp).submit().get()
  graph = GraphFactory.open(wgConf)
  g = graph.traversal()
  g.V().valueMap()
  