[SPARK-21508] Documentation on 'Spark Streaming Custom Receivers' has error in example code

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.2.0
• Fix Version/s: 2.2.1, 2.3.0
• Component/s: Documentation
• Flags: Patch
• Assignee: Remis Haroon
• Reporter: Remis Haroon
• Created: 22/Jul/17 13:15
• Updated: 29/Jul/17 12:27
• Resolved: 29/Jul/17 12:26

Description

The example code provided in the documentation on 'Spark Streaming Custom Receivers' has an error.
https://spark.apache.org/docs/latest/streaming-custom-receivers.html

// Assuming ssc is the StreamingContext
val customReceiverStream = ssc.receiverStream(new CustomReceiver(host, port))
val words = lines.flatMap(_.split(" "))
...

instead of

lines.flatMap(_.split(" "))

it should be

customReceiverStream.flatMap(_.split(" "))