Github user sarutak commented on a diff in the pull request: https://github.com/apache/spark/pull/2408#discussion_r17600021 --- Diff: core/src/main/scala/org/apache/spark/network/ManagedBuffer.scala --- @@ -66,8 +67,13 @@ 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 { + channel = new RandomAccessFile(file, "r").getChannel + channel.map(MapMode.READ_ONLY, offset, length) + } finally { + channel.close() --- End diff -- Originally I was going to check channel is null or not, but I forgot at previous PR. Now I've modified.
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