[SPARK-29401] Replace ambiguous varargs call parallelize(Array) with parallelize(Seq)

• Type: Sub-task
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.0.0
• Fix Version/s: 3.0.0
• Component/s: ML, Spark Core
• Assignee: Sean R. Owen
• Reporter: Sean R. Owen
• Created: 08/Oct/19 22:59
• Updated: 09/Oct/19 17:27
• Resolved: 09/Oct/19 03:22

Description

Another general class of Scala 2.13 compile errors:

[ERROR] [Error] /Users/seanowen/Documents/spark_2.13/core/src/test/scala/org/apache/spark/ShuffleSuite.scala:47: overloaded method value apply with alternatives:
  (x: Unit,xs: Unit*)Array[Unit] <and>
  (x: Double,xs: Double*)Array[Double] <and>
  (x: Float,xs: Float*)Array[Float] <and>
  (x: Long,xs: Long*)Array[Long] <and>
  (x: Int,xs: Int*)Array[Int] <and>
  (x: Char,xs: Char*)Array[Char] <and>
  (x: Short,xs: Short*)Array[Short] <and>
  (x: Byte,xs: Byte*)Array[Byte] <and>
  (x: Boolean,xs: Boolean*)Array[Boolean]
 cannot be applied to ((Int, Int), (Int, Int), (Int, Int), (Int, Int))

All of these (almost all?) are from calls to SparkContext.parallelize with an Array of tuples. We can replace them with Seqs, which seems to work.

Issue Links

• links to: GitHub Pull Request #26062
• links to: GitHub Pull Request #26074