[jira] [Commented] (GIRAPH-820) add a configuration option to skip creating source vertices present only in edge input

["Pavan Kumar (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/GIRAPH-820?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13854687#comment-13854687 ] 

Pavan Kumar commented on GIRAPH-820:
------------------------------------

changed option & method names.

> 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
>         Attachments: GIRAPH-820-v1.patch, GIRAPH-820.patch
>
>   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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