Github user JoshRosen commented on a diff in the pull request:
https://github.com/apache/spark/pull/5288#discussion_r27460121
--- Diff: core/src/main/scala/org/apache/spark/scheduler/DAGScheduler.scala
---
@@ -493,7 +495,8 @@ class DAGScheduler(
val func2 = func.asInstanceOf[(TaskContext, Iterator[_]) => _]
val waiter = new JobWaiter(this, jobId, partitions.size, resultHandler)
eventProcessLoop.post(JobSubmitted(
- jobId, rdd, func2, partitions.toArray, allowLocal, callSite, waiter,
properties))
+ jobId, rdd, func2, partitions.toArray, allowLocal, callSite, waiter,
+ SerializationUtils.clone(properties)))
--- End diff --
We need to use `SerializationUtils.clone()` in order to perform a
deep-clone which also captures properties that were inherited from parents; see
5a5526164bdf9ecf1306d4570e816eb4df5cfd2b for more discussion of this issue.
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