Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/21772#discussion_r205929311
--- Diff:
sql/core/src/test/scala/org/apache/spark/sql/execution/joins/HashedRelationSuite.scala
---
@@ -278,6 +278,36 @@ class HashedRelationSuite extends SparkFunSuite with
SharedSQLContext {
map.free()
}
+ test("SPARK-24809: Serializing LongToUnsafeRowMap in executor may result
in data error") {
+ val unsafeProj = UnsafeProjection.create(Array[DataType](LongType))
+ val originalMap = new LongToUnsafeRowMap(mm, 1)
+
+ val key1 = 1L
+ val value1 = 4852306286022334418L
+
+ val key2 = 2L
+ val value2 = 8813607448788216010L
+
+ originalMap.append(key1, unsafeProj(InternalRow(value1)))
+ originalMap.append(key2, unsafeProj(InternalRow(value2)))
+ originalMap.optimize()
+
+ val ser = new KryoSerializer(
--- End diff --
we can write `sparkContext.env.serializer.newInstance()`
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