[SPARK-19709] CSV datasource fails to read empty file

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.2.0
• Fix Version/s: 2.2.0
• Component/s: SQL
• Assignee: Wojciech Szymanski
• Reporter: Hyukjin Kwon
• Created: 23/Feb/17 10:42
• Updated: 12/Dec/22 18:10
• Resolved: 06/Mar/17 21:19

Description

I just touch a and then ran the codes below:

scala> spark.read.csv("a")
java.util.NoSuchElementException: next on empty iterator
	at scala.collection.Iterator$$anon$2.next(Iterator.scala:39)
	at scala.collection.Iterator$$anon$2.next(Iterator.scala:37)
	at scala.collection.IndexedSeqLike$Elements.next(IndexedSeqLike.

It seems we should produce an empty dataframe consistently with `spark.read.json("a")`.

Issue Links

• links to: [Github] Pull Request #17068 (wojtek-szymanski)