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From "Pavan Kumar (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (GIRAPH-820) add a configuration option to skip creating source vertices present only in edge input
Date Fri, 20 Dec 2013 22:48:10 GMT

     [ https://issues.apache.org/jira/browse/GIRAPH-820?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Pavan Kumar updated GIRAPH-820:
-------------------------------

    Remaining Estimate: 24h
     Original Estimate: 24h

mvn clean verify succeeds {after adding the new test case}
tested it on the cluster on a sample application which does NoOpComputation, as seen in the
test. The application runs successfully and behaves as expected.

> add a configuration option to skip creating source vertices present only in edge input
> --------------------------------------------------------------------------------------
>
>                 Key: GIRAPH-820
>                 URL: https://issues.apache.org/jira/browse/GIRAPH-820
>             Project: Giraph
>          Issue Type: New Feature
>          Components: graph
>            Reporter: Pavan Kumar
>            Priority: Minor
>              Labels: giraph
>   Original Estimate: 24h
>  Remaining Estimate: 24h
>
> In giraph source vertices present only in edge input are created by default.
> In this patch an additional configuration parameter has been added to control this behavior.
The default behavior is still to create the source vertex if not already present, but the
user can choose not to do so, by setting CREATE_VERTEX_IMPLICIT_EDGE_INPUT BoolConfoption
to false.
> An example use case for such a change is to help in creating subgraphs of the original
graph based on a sampled vertex input.



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