Github user aarondav commented on a diff in the pull request:
https://github.com/apache/spark/pull/1450#discussion_r15040327
--- Diff: core/src/main/scala/org/apache/spark/rdd/PairRDDFunctions.scala
---
@@ -214,7 +214,7 @@ class PairRDDFunctions[K, V](self: RDD[(K, V)])
throw new SparkException("reduceByKeyLocally() does not support
array keys")
}
- def reducePartition(iter: Iterator[(K, V)]): Iterator[JHashMap[K, V]]
= {
+ val reducePartition = (iter: Iterator[(K, V)]) => {
--- End diff --
And when I said non-obvious, I mean just from looking at the function name
and input arguments. Here it is actually straightforward to infer from the
remaining lines, but in other situations it is less so.
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