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 wrote:
> Is does not seem to be safe to call RDD.firstParen
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
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