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[SPARK-32436][CORE] Initialize numNonEmptyBlocks in HighlyCompressedMapStatus.readExternal #29231

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[SPARK-32436][CORE] Initialize numNonEmptyBlocks in HighlyCompressedMapStatus.readExternal #29231

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[SPARK-32436][CORE] Remove unused HighlyCompressedMapStatus.numNonEmp…
dongjoon-hyun Jul 25, 2020
2bbfa4e
Revert "[SPARK-32436][CORE] Remove unused HighlyCompressedMapStatus.n…
dongjoon-hyun Jul 25, 2020
6654013
fix
dongjoon-hyun Jul 25, 2020
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1 change: 1 addition & 0 deletions core/src/main/scala/org/apache/spark/scheduler/MapStatus.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -217,6 +217,7 @@ private[spark] class HighlyCompressedMapStatus private (

override def readExternal(in: ObjectInput): Unit = Utils.tryOrIOException {
loc = BlockManagerId(in)
numNonEmptyBlocks = -1 // SPARK-32436 Scala 2.13 doesn't initialize this during deserialization
emptyBlocks = new RoaringBitmap()
emptyBlocks.readExternal(in)
avgSize = in.readLong()
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