Github user vanzin commented on a diff in the pull request:
https://github.com/apache/spark/pull/21669#discussion_r215427665
--- Diff: examples/src/main/scala/org/apache/spark/examples/HdfsTest.scala
---
@@ -41,6 +41,8 @@ object HdfsTest {
val end = System.currentTimeMillis()
println(s"Iteration $iter took ${end-start} ms")
}
+ println(s"File contents: ${file.map(s =>
s.toString).collect().mkString(",")}")
--- End diff --
Spark's convention is either `.map { s=> s.toString }` or
`.map(_.toString)`. I noticed this in a few other places too.
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