Here is what you can do.
// Recreating your RDD
val a = Array(Array(1, 2, 3), Array(2, 3, 4), Array(3, 4, 5), Array(6, 7, 8))
val b = sc.parallelize(a)
val c = b.map(x => (x(0) + " " + x(1) + " " + x(2)))
// Collect to
c.collect()
—> res3: Array[String] = Array(1 2 3, 2 3 4, 3 4 5, 6 7 8)
c.saveAsTextFile("test”)
—>
[csingh ~]$ hadoop fs -cat test/*
1 2 3
2 3 4
3 4 5
6 7 8
> On Feb 28, 2016, at 1:20 AM, Bonsen <hengbohe...@126.com> wrote:
>
> I get results from RDDs,
> like :
> Array(Array(1,2,3),Array(2,3,4),Array(3,4,6))
> how can I output them to 1.txt
> like :
> 1 2 3
> 2 3 4
> 3 4 6
>
>
>
>
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