srowen commented on a change in pull request #25951: [SPARK-28917][CORE]
Synchronize access to RDD mutable state.
URL: https://github.com/apache/spark/pull/25951#discussion_r329314838
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File path: core/src/main/scala/org/apache/spark/rdd/RDD.scala
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@@ -223,12 +236,12 @@ abstract class RDD[T: ClassTag](
}
/** Get the RDD's current storage level, or StorageLevel.NONE if none is
set. */
- def getStorageLevel: StorageLevel = storageLevel
+ def getStorageLevel: StorageLevel = stateLock.synchronized { storageLevel }
Review comment:
Yeah, what is this racing with? by itself, I'm not sure this forces
something to set this before something else needs to read it.
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