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[SPARK-4672][Core]Checkpoint() should clear f to shorten the serialization chain #3545

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[SPARK-4672][Core]Checkpoint() should clear f to shorten the serialization chain #3545

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52799e3
Merge pull request #1 from apache/master
JerryLead Dec 1, 2014
c0169da
Merge branch 'master' of https://github.com/apache/spark
Dec 2, 2014
f7faea5
checkpoint() should clear the f to avoid StackOverflow error
Dec 2, 2014
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9 changes: 6 additions & 3 deletions core/src/main/scala/org/apache/spark/rdd/ZippedPartitionsRDD.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -77,7 +77,7 @@ private[spark] abstract class ZippedPartitionsBaseRDD[V: ClassTag](

private[spark] class ZippedPartitionsRDD2[A: ClassTag, B: ClassTag, V: ClassTag](
sc: SparkContext,
f: (Iterator[A], Iterator[B]) => Iterator[V],
var f: (Iterator[A], Iterator[B]) => Iterator[V],
var rdd1: RDD[A],
var rdd2: RDD[B],
preservesPartitioning: Boolean = false)
Expand All @@ -92,13 +92,14 @@ private[spark] class ZippedPartitionsRDD2[A: ClassTag, B: ClassTag, V: ClassTag]
super.clearDependencies()
rdd1 = null
rdd2 = null
f = null
}
}

private[spark] class ZippedPartitionsRDD3
[A: ClassTag, B: ClassTag, C: ClassTag, V: ClassTag](
sc: SparkContext,
f: (Iterator[A], Iterator[B], Iterator[C]) => Iterator[V],
var f: (Iterator[A], Iterator[B], Iterator[C]) => Iterator[V],
var rdd1: RDD[A],
var rdd2: RDD[B],
var rdd3: RDD[C],
Expand All @@ -117,13 +118,14 @@ private[spark] class ZippedPartitionsRDD3
rdd1 = null
rdd2 = null
rdd3 = null
f = null
}
}

private[spark] class ZippedPartitionsRDD4
[A: ClassTag, B: ClassTag, C: ClassTag, D:ClassTag, V: ClassTag](
sc: SparkContext,
f: (Iterator[A], Iterator[B], Iterator[C], Iterator[D]) => Iterator[V],
var f: (Iterator[A], Iterator[B], Iterator[C], Iterator[D]) => Iterator[V],
var rdd1: RDD[A],
var rdd2: RDD[B],
var rdd3: RDD[C],
Expand All @@ -145,5 +147,6 @@ private[spark] class ZippedPartitionsRDD4
rdd2 = null
rdd3 = null
rdd4 = null
f = null
}
}