Github user srowen commented on a diff in the pull request:
https://github.com/apache/spark/pull/15915#discussion_r92123402
--- Diff:
core/src/main/scala/org/apache/spark/util/io/ChunkedByteBufferOutputStream.scala
---
@@ -30,9 +31,14 @@ import org.apache.spark.storage.StorageUtils
* @param chunkSize size of each chunk, in bytes.
*/
private[spark] class ChunkedByteBufferOutputStream(
- chunkSize: Int,
+ var chunkSize: Int,
allocator: Int => ByteBuffer)
- extends OutputStream {
+ extends OutputStream with Logging{
+
+ if (chunkSize < 0) {
+ logWarning(s"chunkSize should not be an negative value, replaced as
4MB default.")
+ chunkSize = 4 * 1024 * 1024
+ }
--- End diff --
This doesn't fix the issue, because a value > Int.MaxValue can still
truncate to a (wrong) positive Int.
If protecting against Long values > Int.MaxValue is the least we can do to
address this problem, we should actually do that. It can't be that many call
sites right?
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