spark streaming kafa best practices ?

[david]

hi,

  What is the bet way to process a batch window in SparkStreaming :

    kafkaStream.foreachRDD(rdd => {
      rdd.collect().foreach(event => {
        // process the event
        process(event)
      })
    })


Or 

    kafkaStream.foreachRDD(rdd => {
      rdd.map(event => {
        // process the event
        process(event)
      }).collect()
    })


thank's



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