Github user jerryshao commented on a diff in the pull request:
https://github.com/apache/spark/pull/4612#discussion_r24722476
--- Diff:
streaming/src/main/scala/org/apache/spark/streaming/dstream/FileInputDStream.scala
---
@@ -74,10 +74,12 @@ class FileInputDStream[K, V, F <: NewInputFormat[K,V]](
directory: String,
filter: Path => Boolean = FileInputDStream.defaultFilter,
newFilesOnly: Boolean = true,
- conf: Option[Configuration] = None)
+ @transient conf: Option[Configuration] = None)
--- End diff --
`Configuration` is used in `filesToRDD` function, so it is not just a
constructor statements, if checkpoint is enable, this variable will be written
into file and meet unserializable exception, you can check the linked JIRA for
details. Sorry if I misunderstood anything.
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