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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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Erik van Oosten updated SPARK-6878:
-----------------------------------
Flags: Patch
> 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
>
> {{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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