[jira] [Created] (SPARK-17521) Error when I use sparkContext.makeRDD(Seq())

["WangJianfei (JIRA)" <ji...@apache.org>]

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)
  }
```



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscribe@spark.apache.org
For additional commands, e-mail: issues-help@spark.apache.org