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https://issues.apache.org/jira/browse/SPARK-5352?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-5352:
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Assignee: (was: Apache Spark)
> Add getPartitionStrategy in Graph
> ---------------------------------
>
> Key: SPARK-5352
> URL: https://issues.apache.org/jira/browse/SPARK-5352
> Project: Spark
> Issue Type: Improvement
> Components: GraphX
> Reporter: Takeshi Yamamuro
> Priority: Minor
>
> Graph remembers an applied partition strategy in partitionBy() and
> returns it via getPartitionStrategy().
> This is useful in case of the following situation;
> val g1 = GraphLoader.edgeListFile(sc, "graph.txt")
> val g2 = g1.partitionBy(EdgePartition2D, 2)
> // Modify (e.g., add, contract, ...) edges in g2
> val newEdges = ...
> // Re-build a new graph based on g2
> val g3 = Graph(g1.vertices, newEdges)
> // Partition edges in a similar way of g2
> val g4 = g3.partitionBy(g2.getPartitionStrategy, 2)
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