durand remi created SPARK-9878:
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Summary: ReduceByKey + FullOuterJoin return 0 element if using an
empty RDD
Key: SPARK-9878
URL: https://issues.apache.org/jira/browse/SPARK-9878
Project: Spark
Issue Type: Bug
Affects Versions: 1.4.0
Environment: linux ubuntu 64b spark-hadoop
launched with Local[2]
Reporter: durand remi
Priority: Minor
code to reproduce:
println("ok
:"+sc.parallelize(List((3,4),(4,5))).fullOuterJoin(sc.emptyRDD[(Int,Seq[Int])]).count)
println("ko:
"+sc.parallelize(List((3,4),(4,5))).fullOuterJoin(sc.emptyRDD[(Int,Seq[Int])].reduceByKey((e1,
e2) => e1 ++ e2)).count)
what i expect:
ok: 2
ko: 2
but what i have:
ok: 2
ko: 0
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