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From Eli Reisman <initialcont...@gmail.com>
Subject Re: [jira] [Commented] (GIRAPH-244) Vertex API redesign
Date Thu, 12 Jul 2012 20:39:12 GMT
There was a recent JIRA that broke those out of the shortest paths vertex
class and made the IO formats separate. The way I think things are going
now is to write your vertex, and then try to use the supplied IO formats by
specifying them at the command line using the -if and -of switches (see
GiraphRunner.java and the bin/giraph shell script)

Some updated docs on this for the wiki would be fantastic, its way out of
date now and needs to be updated on a number of topics.

On Thu, Jul 12, 2012 at 7:56 AM, Claudio Martella <
claudio.martella@gmail.com> wrote:

> right, you can use them with the Json* classes in lib/. They have
> types that match the vertex signature (long, double, float, double).
>
> On Thu, Jul 12, 2012 at 4:41 PM, Mirko Kämpf <mirko.kaempf@cloudera.com>
> wrote:
> > Thanks for the reply,
> >
> > I think I did not describe my question clear.
> > I can not find the classes in the src folder (in trunk) I cheked out from
> > svn .
> > In what package are these classes or did I check out the wrong folder?
> > Mirko
> >
> >
> >
> > On Thu, Jul 12, 2012 at 4:35 PM, Claudio Martella <
> > claudio.martella@gmail.com> wrote:
> >
> >> Hi Mirko,
> >>
> >> no, those classes are there for you to use. they define the way the
> >> graph is serialized and deserialized, so that it can be loaded to
> >> compute the paths and offloaded to write the result.
> >>
> >> On Thu, Jul 12, 2012 at 2:27 PM, Mirko Kämpf <mirko.kaempf@cloudera.com
> >
> >> wrote:
> >> > Hello,
> >> >
> >> > I just started to dive into Giraph, and while I tried the
> >> > SimpleShortestPaths example, a
> >> > it is explained in the Wiki I found that SimpleShortestPathsVertex
> has no
> >> > main and run method,
> >> > so I assume it should be used with the GiraphRunner. But there are the
> >> > classes:
> >> >
> >> > SimpleShortestPathsVertexReader
> >> > SimpleShortestPathsVertexInputFormat
> >> > SimpleShortestPathsVertexWriter
> >> > SimpleShortestPathsVertexOutputFormat
> >> > which are explained in the Wiki located? Are they removed finally, or
> do
> >> I
> >> > have to create these classes?
> >> >
> >> > I would like to update the Wiki pages to show how to work with the
> >> examples
> >> > in giraph-0.20 and
> >> > some classes to import / export graph or networkdata I would also
> like to
> >> > contribute.
> >> >
> >> > Best wishes
> >> > Mirko
> >>
> >>
> >>
> >> --
> >>    Claudio Martella
> >>    claudio.martella@gmail.com
> >>
>
>
>
> --
>    Claudio Martella
>    claudio.martella@gmail.com
>

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