Github user srowen commented on a diff in the pull request: https://github.com/apache/spark/pull/12693#discussion_r61870401 --- Diff: core/src/main/scala/org/apache/spark/rdd/ReliableCheckpointRDD.scala --- @@ -243,7 +243,16 @@ private[spark] object ReliableCheckpointRDD extends Logging { if (fs.exists(partitionerFilePath)) { val fileInputStream = fs.open(partitionerFilePath, bufferSize) val serializer = SparkEnv.get.serializer.newInstance() - val deserializeStream = serializer.deserializeStream(fileInputStream) + // make sure that the file is closed if error occurrs during deserialization + val deserializeStream = --- End diff -- I'm not sure what you mean -- it's less code. Just open the deserializeStream inside the block and close it in the finally block that follows. Actually, closing deserializeStream will already (should already) close the underlying stream anyway. It doesn't handle errors while making the stream from the original stream, but, constructors of the deserializer streams aren't reading the stream anyway. I suspect it's fine as-is, but it would be extra-defensive to also close the fileInputStream, yes.
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