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From "sabarishyam (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (GIRAPH-820) add a configuration option to skip creating source vertices present only in edge input
Date Thu, 26 Dec 2013 17:43:50 GMT

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

sabarishyam updated GIRAPH-820:
-------------------------------

    Description: 
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.

  was:
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.


> 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
>            Assignee: 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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