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https://issues.apache.org/jira/browse/FLINK-2716?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14949789#comment-14949789
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Robert Metzger commented on FLINK-2716:
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Correct me if I'm wrong (I don't know that part of the code very well), but
can't we provide the input type serializers through the {{RuntimeContext}} ?
> Checksum method for DataSet and Graph
> -------------------------------------
>
> Key: FLINK-2716
> URL: https://issues.apache.org/jira/browse/FLINK-2716
> Project: Flink
> Issue Type: Improvement
> Components: Gelly, Java API, Scala API
> Affects Versions: 0.10
> Reporter: Greg Hogan
> Assignee: Greg Hogan
> Priority: Minor
>
> {{DataSet.count()}}, {{Graph.numberOfVertices()}}, and
> {{Graph.numberOfEdges()}} provide measures of the number of distributed data
> elements. New {{DataSet.checksum()}} and {{Graph.checksum()}} methods will
> summarize the content of data elements and support algorithm validation,
> integration testing, and benchmarking.
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