Github user ksakellis commented on the pull request:
https://github.com/apache/spark/pull/3120#issuecomment-67213648
@kayousterhout The test you pointed out:
sc.parallelize(1 to 2).saveAsTextFile("file:////tester1")
val a = sc.textFile("file:////tester1")
sc.parallelize(1 to 10).saveAsTextFile("file:////tester2")
val b = sc.textFile("file:////tester2")
a.cartesian(b)
b.cartesian(a)
is actually not valid because of how cartesian is implemented. I added a
comment to the interleaved reads unit test to describe the reasoning.
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