Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/23040#discussion_r234395227
--- Diff:
core/src/main/scala/org/apache/spark/util/io/ChunkedByteBuffer.scala ---
@@ -222,7 +222,7 @@ private[spark] class ChunkedByteBufferInputStream(
dispose: Boolean)
extends InputStream {
- private[this] var chunks = chunkedByteBuffer.getChunks().iterator
+ private[this] var chunks =
chunkedByteBuffer.getChunks().filter(_.hasRemaining).iterator
--- End diff --
can you add a comment above, saying that we do this filter because `read`
assumes `chunks` has no empty chunk?
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