Hi Folks. I have a graph computation that passes 'visited' Vertex IDs
around, and I need to output information from those in the output phase.
How do I look up a Vertex from its ID? I found Partition.getVertex(), but
IIUC there is no guarantee that an arbitrary Vertex will be in a particular
I think you answered your question Or am I supposed to write a
VertexOutputFormat implementation that generates no output for the vertices
that have no data?, as in YES!.
But don't be put off; It is actually a very simple class to override. Here is
an example for something like you describe: