Github user zsxwing commented on a diff in the pull request:
https://github.com/apache/spark/pull/3740#discussion_r22141873
--- Diff: core/src/main/scala/org/apache/spark/rdd/RDD.scala ---
@@ -1182,7 +1194,14 @@ abstract class RDD[T: ClassTag](
* Save this RDD as a compressed text file, using string representations
of elements.
*/
def saveAsTextFile(path: String, codec: Class[_ <: CompressionCodec]) {
- this.map(x => (NullWritable.get(), new Text(x.toString)))
+ // https://issues.apache.org/jira/browse/SPARK-2075
+ val nullWritableOrdering = new Ordering[NullWritable] {
+ override def compare(x: NullWritable, y: NullWritable): Int = 0
+ }
+ val nullWritableClassTag = implicitly[ClassTag[NullWritable]]
+ val textClassTag = implicitly[ClassTag[Text]]
+ val r = this.map(x => (NullWritable.get(), new Text(x.toString)))
--- End diff --
OK. I'll send another PR for that after this one is merged.
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