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From Hassan Eslami <>
Subject Re: When Giraph writes to output files
Date Wed, 22 Jul 2015 20:49:06 GMT

Here is what I think:
The code section you are looking at is executed per superstep for each
vertex, and is intended for outputs during a superstep. The code section
you actually want to look at is "cleanup" in "BspServiceWorker" where it
calls "saveVertices" and "saveEdges".


On 7/22/15, 9:36 AM, "Khaled Ammar" <> wrote:

>Hi all,
>I would like to quantify the time Giraph spent in writing to the output
>file. I found this line (" vertexWriter.writeVertex(vertex);") in the
>(ComputeCallable). However, from the source code, it seems like this is
>called every iteration which I know does not happen.
>Could someone please explain this to me with some details?

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