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https://issues.apache.org/jira/browse/SPARK-1153?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15212670#comment-15212670
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Reynold Xin commented on SPARK-1153:
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[~ntietz] changing this will very likely make performance regress for long ids,
due to the lack of specialization.
You might want to look into graphframes for more general graph functionalities
too: https://github.com/graphframes/graphframes
> Generalize VertexId in GraphX so that UUIDs can be used as vertex IDs.
> ----------------------------------------------------------------------
>
> Key: SPARK-1153
> URL: https://issues.apache.org/jira/browse/SPARK-1153
> Project: Spark
> Issue Type: Improvement
> Components: GraphX
> Affects Versions: 0.9.0
> Reporter: Deepak Nulu
>
> Currently, {{VertexId}} is a type-synonym for {{Long}}. I would like to be
> able to use {{UUID}} as the vertex ID type because the data I want to process
> with GraphX uses that type for its primay-keys. Others might have a different
> type for their primary-keys. Generalizing {{VertexId}} (with a type class)
> will help in such cases.
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