WangJianfei created SPARK-17521:
-----------------------------------
Summary: Error when I use sparkContext.makeRDD(Seq())
Key: SPARK-17521
URL: https://issues.apache.org/jira/browse/SPARK-17521
Project: Spark
Issue Type: Bug
Components: Spark Core
Affects Versions: 2.0.0
Reporter: WangJianfei
Priority: Minor
```
val data3 = sc.makeRDD(Seq())
println(data3.partitions.length)
```
error:
Exception in thread "main" java.lang.IllegalArgumentException: Positive number
of slices required
We can fix this bug just modify the last line ,do a check of seq.size
````
def makeRDD[T: ClassTag](seq: Seq[(T, Seq[String])]): RDD[T] = withScope {
assertNotStopped()
val indexToPrefs = seq.zipWithIndex.map(t => (t._2, t._1._2)).toMap
new ParallelCollectionRDD[T](this, seq.map(_._1), seq.size, indexToPrefs)
}
```
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