Github user srowen commented on a diff in the pull request:
https://github.com/apache/spark/pull/14416#discussion_r72886131
--- Diff:
external/kafka-0-10/src/main/scala/org/apache/spark/streaming/kafka010/KafkaTestUtils.scala
---
@@ -178,8 +178,9 @@ private[kafka010] class KafkaTestUtils extends Logging {
/** Send the array of messages to the Kafka broker */
def sendMessages(topic: String, messages: Array[String]): Unit = {
- producer = new Producer[String, String](new
ProducerConfig(producerConfiguration))
- producer.send(messages.map { new KeyedMessage[String, String](topic, _
) }: _*)
+ producer = new KafkaProducer[String, String](producerConfiguration)
+ val records = messages.map { new ProducerRecord[String, String](topic,
_) }
+ records.map(producer.send)
--- End diff --
This type of thing is even essential for correctness in some cases, like
https://issues.apache.org/jira/browse/SPARK-16664
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