Github user zsxwing commented on a diff in the pull request:
https://github.com/apache/spark/pull/10083#discussion_r46465871
--- Diff:
core/src/main/scala/org/apache/spark/serializer/KryoSerializer.scala ---
@@ -307,7 +307,7 @@ private[spark] class KryoSerializerInstance(ks:
KryoSerializer) extends Serializ
override def deserialize[T: ClassTag](bytes: ByteBuffer): T = {
val kryo = borrowKryo()
try {
- input.setBuffer(bytes.array)
+ input.setBuffer(bytes.array(), bytes.arrayOffset() +
bytes.position(), bytes.remaining())
--- End diff --
Kryo will use the array as an internal buffer. Why it's not necessary?
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