Github user pwendell commented on a diff in the pull request:
https://github.com/apache/spark/pull/94#discussion_r10374683
--- Diff: core/src/test/scala/org/apache/spark/PipedRDDSuite.scala ---
@@ -89,4 +97,37 @@ class PipedRDDSuite extends FunSuite with
SharedSparkContext {
}
}
+ test("test pipe exports map_input_file") {
+ testExportInputFile("map_input_file")
+ }
+
+ test("test pipe exports mapreduce_map_input_file") {
+ testExportInputFile("mapreduce_map_input_file")
+ }
+
+ def testExportInputFile(varName:String) {
+ val nums = new HadoopRDD(sc, new JobConf(), classOf[TextInputFormat],
classOf[LongWritable],
+ classOf[Text], 2) {
+ override def getPartitions: Array[Partition] =
Array(generateFakeHadoopPartition())
+ override val getDependencies = List[Dependency[_]]()
+ override def compute(theSplit: Partition, context: TaskContext) = {
+ new InterruptibleIterator[(LongWritable, Text)](context,
Iterator((new LongWritable(1),
+ new Text("b"))))
+ }
+ }
+ val hadoopPart1 = generateFakeHadoopPartition()
+ val pipedRdd = new PipedRDD(nums, "printenv " + varName)
--- End diff --
Ah I see - well then since your'e just doing what's there already I guess
it's fine. But if you want to be a true hero, I think something like this would
work:
```
import scala.util.Try
import scala.sys.process._
val hasPrintEnv = Try(Process("printenv")!!).isSuccess
```
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