Github user rxin commented on a diff in the pull request:
https://github.com/apache/spark/pull/2408#discussion_r17617628
--- Diff: core/src/main/scala/org/apache/spark/network/ManagedBuffer.scala
---
@@ -66,8 +67,15 @@ final class FileSegmentManagedBuffer(val file: File, val
offset: Long, val lengt
override def size: Long = length
override def nioByteBuffer(): ByteBuffer = {
- val channel = new RandomAccessFile(file, "r").getChannel
- channel.map(MapMode.READ_ONLY, offset, length)
+ var channel: FileChannel = null
+ try {
--- End diff --
this part looks good to me
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