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From tdas <>
Subject [GitHub] spark pull request: [SPARK-4964] [Streaming] refactor createRDD to...
Date Tue, 10 Feb 2015 21:56:02 GMT
Github user tdas commented on a diff in the pull request:
    --- 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 --
    We keep creating a KafkaCluster object everywhere... what is the cost of creating a KafkaCluster
object? Is there any? I guess not because it is just creating a config object and nothing
else... isnt it?

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