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Posted to issues@spark.apache.org by "npanj (JIRA)" <ji...@apache.org> on 2014/05/28 08:43:01 UTC
[jira] [Commented] (SPARK-1153) Generalize VertexId in GraphX so
that UUIDs can be used as vertex IDs.
[ https://issues.apache.org/jira/browse/SPARK-1153?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14010846#comment-14010846 ]
npanj commented on SPARK-1153:
------------------------------
An alternative approach, that I have been using:
1 Use a preprocessing step that maps UUID to an Long.
2. Build graph based on Longs
For Mapping in step 1:
- Rank your uuids.
- some kind of has function?
For 1, graphx can provide a tool to generate map.
I will like to hear how others are building graphs out of non-Long node types
> 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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