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misleading task number of groupByKey #403

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misleading task number of groupByKey
CrazyJvm Apr 14, 2014
829a995
fix format
CrazyJvm Apr 14, 2014
42f6c9e
fix format
CrazyJvm Apr 14, 2014
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fix format
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CrazyJvm committed Apr 14, 2014
commit 829a99500a07e326254f8db5eb6a4e44edaf406f
2 changes: 1 addition & 1 deletion docs/scala-programming-guide.md
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Expand Up @@ -190,7 +190,7 @@ The following tables list the transformations and actions currently supported (s
<td> <b>groupByKey</b>([<i>numTasks</i>]) </td>
<td> When called on a dataset of (K, V) pairs, returns a dataset of (K, Seq[V]) pairs. <br />
<b>Note:</b> By default, if the RDD already has a partitioner, the task number is decided by the partition number of the partitioner, or else relies on the value of <code>spark.default.parallelism</code> if the property is set , otherwise depends on the partition number of the RDD. You can pass an optional <code>numTasks</code> argument to set a different number of tasks.
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<td> <b>reduceByKey</b>(<i>func</i>, [<i>numTasks</i>]) </td>
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