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https://issues.apache.org/jira/browse/SPARK-5450?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sean Owen resolved SPARK-5450.
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    Resolution: Won't Fix

> Add APIs to save a graph as a SequenceFile and load it
> ------------------------------------------------------
>
>                 Key: SPARK-5450
>                 URL: https://issues.apache.org/jira/browse/SPARK-5450
>             Project: Spark
>          Issue Type: Improvement
>          Components: GraphX
>            Reporter: Takeshi Yamamuro
>
> As the size of input data increases, building Graph eat much processing time 
> via GraphLoader.edgeListFile() or RDD transformations.
> APIs to save Graph as a object file is useful for those cases.
> The operations are currently slow because of the default serializer (Java 
> serialization), so efficient serialization is of future work.



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