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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