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https://issues.apache.org/jira/browse/SPARK-6878?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sean Owen resolved SPARK-6878.
------------------------------
Resolution: Fixed
Fix Version/s: 1.2.2
1.4.0
1.3.2
Issue resolved by pull request 5489
[https://github.com/apache/spark/pull/5489]
> Sum on empty RDD fails with exception
> -------------------------------------
>
> Key: SPARK-6878
> URL: https://issues.apache.org/jira/browse/SPARK-6878
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Affects Versions: 1.2.0
> Reporter: Erik van Oosten
> Priority: Minor
> Fix For: 1.3.2, 1.4.0, 1.2.2
>
>
> {{Sum}} on an empty RDD throws an exception. Expected result is {{0}}.
> A simple fix is the replace
> {noformat}
> class DoubleRDDFunctions {
> def sum(): Double = self.reduce(_ + _)
> {noformat}
> with:
> {noformat}
> class DoubleRDDFunctions {
> def sum(): Double = self.aggregate(0.0)(_ + _, _ + _)
> {noformat}
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