Github user zsxwing commented on a diff in the pull request:
https://github.com/apache/spark/pull/10083#discussion_r46451156
--- Diff:
core/src/main/scala/org/apache/spark/serializer/GenericAvroSerializer.scala ---
@@ -81,7 +81,10 @@ private[serializer] class GenericAvroSerializer(schemas:
Map[Long, String])
* seen values so to limit the number of times that decompression has to
be done.
*/
def decompress(schemaBytes: ByteBuffer): Schema =
decompressCache.getOrElseUpdate(schemaBytes, {
- val bis = new ByteArrayInputStream(schemaBytes.array())
+ val bis = new ByteArrayInputStream(
--- End diff --
Because `decompressCache` puts `ByteBuffer` as a key, here should not
change the `schemaBytes`'s `position`, so cannot use `ByteBufferInputStream`
here.
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