Github user tdas commented on a diff in the pull request:
https://github.com/apache/spark/pull/4511#discussion_r24454369
--- Diff:
external/kafka/src/main/scala/org/apache/spark/streaming/kafka/KafkaUtils.scala
---
@@ -211,12 +220,17 @@ object KafkaUtils {
sc: SparkContext,
kafkaParams: Map[String, String],
offsetRanges: Array[OffsetRange],
- leaders: Array[Leader],
+ leaders: Map[TopicAndPartition, Broker],
messageHandler: MessageAndMetadata[K, V] => R
): RDD[R] = {
- val leaderMap = leaders
- .map(l => TopicAndPartition(l.topic, l.partition) -> (l.host,
l.port))
- .toMap
+ val leaderMap = if (leaders.isEmpty) {
+ leadersForRanges(kafkaParams, offsetRanges)
+ } else {
+ // This could be avoided by refactoring KafkaRDD.leaders and
KafkaCluster to use Broker
--- End diff --
This can be done in the future. We will need a bit of refactoring.
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