Github user koeninger commented on a diff in the pull request:
https://github.com/apache/spark/pull/4511#discussion_r24459792
--- Diff:
external/kafka/src/main/scala/org/apache/spark/streaming/kafka/KafkaUtils.scala
---
@@ -154,6 +154,19 @@ object KafkaUtils {
jssc.ssc, kafkaParams.toMap,
Map(topics.mapValues(_.intValue()).toSeq: _*), storageLevel)
}
+ /** get leaders for the given offset ranges, or throw an exception */
+ private def leadersForRanges(
+ kafkaParams: Map[String, String],
+ offsetRanges: Array[OffsetRange]): Map[TopicAndPartition, (String,
Int)] = {
+ val kc = new KafkaCluster(kafkaParams)
--- End diff --
That's right, it's basically just stateless config. Methods called on it
may be expensive, but i've tried to limit those to places where it's
unavoidable (looking up info that wasn't provided)
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