Why is this a bug? Each RDD implementation should know whether they have a parent or not.
For example, if you are a MapPartitionedRDD, there is always a parent since it is a unary operator. On Wed, Apr 8, 2015 at 6:19 AM, Zoltán Zvara <zoltan.zv...@gmail.com> wrote: > Is does not seem to be safe to call RDD.firstParent from anywhere, as it > might throw a java.util.NoSuchElementException: "head of empty list". This > seems to be a bug for a consumer of the RDD API. > > Zvara Zoltán > > > > mail, hangout, skype: zoltan.zv...@gmail.com > > mobile, viber: +36203129543 > > bank: 10918001-00000021-50480008 > > address: Hungary, 2475 Kápolnásnyék, Kossuth 6/a > > elte: HSKSJZ (ZVZOAAI.ELTE) >
