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https://issues.apache.org/jira/browse/GIRAPH-732?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13733636#comment-13733636
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Claudio Martella commented on GIRAPH-732:
-----------------------------------------
This sounds good. I believe that if the implementer of this issue can implement
(1) with vertexoutputformat being computed before edgeoutputformat, then the
various giraph-formats can synchronize if they need in the
vertexoutputformat#close() (or the edgeoutputformat#initialize()) with a ZK
barrier without putting that logic in the core.
> EdgeOutputFormat
> ----------------
>
> Key: GIRAPH-732
> URL: https://issues.apache.org/jira/browse/GIRAPH-732
> Project: Giraph
> Issue Type: Bug
> Reporter: Nitay Joffe
>
> Outputting edges is as easy as looping through edges in a vertex and writing
> them out. However right now the user still needs to write a
> VertexOutputFormat and do it themselves.
> We should make this easier for them by adding an EdgeOutputFormat API and
> allowing the user to specify a VertexOutputFormat and/or an EdgeOutputFormat.
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