Graph IO Formats

This chapter covers

  • Graph representations
  • Reading input graphs in different formats
  • Saving the result of your analysis

So far, you have familiarized yourself with the concept of graphs and their constituents—vertices and edges—through a variety of use cases. In Chapter 5, you learned how Giraph uses the corresponding Vertex and Edge objects to represent a graph and to programmatically manipulate Vertex and Edge objects and compute useful graph metrics. But before Giraph creates Vertex and Edge objects for you to use, a graph is stored on a storage system in different formats: for instance, plain text files or a binary ...

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