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  1. Spark
  2. SPARK-29782

spark broadcast can not be destoryed in some versions

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Details

    • Bug
    • Status: Resolved
    • Major
    • Resolution: Incomplete
    • 2.3.3, 2.4.1, 2.4.2, 2.4.3, 2.4.4
    • None
    • Block Manager, Spark Core

    Description

      In spark version (2.3.3 , 2.4.1 , 2.4.2 , 2.4.3 , 2.4.4) use Broadcast.destroy() method can not destroy the broadcast data, the driver and executor storage memory in spark ui is continuous increase。

      val batch = Seq(1 to 9999: _*) 
      val strSeq = batch.map(i => s"xxh-$i") 
      val rdd = sc.parallelize(strSeq) 
      rdd.cache() 
      batch.foreach(_ => { 
        val broc = sc.broadcast(strSeq) 
        rdd.map(id => broc.value.contains(id)).collect() 
        broc.destroy() 
      })
      

       

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        1. correct version.png
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          tzxxh
        2. problem versions.png
          8 kB
          tzxxh

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            tzxxh tzxxh
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            Dates

              Created:
              Updated:
              Resolved: