HeartSaVioR commented on code in PR #46351:
URL: https://github.com/apache/spark/pull/46351#discussion_r1589718949
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sql/core/src/main/scala/org/apache/spark/sql/execution/streaming/state/HDFSBackedStateStoreProvider.scala:
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@@ -351,7 +351,7 @@ private[sql] class HDFSBackedStateStoreProvider extends
StateStoreProvider with
}
override def close(): Unit = {
- synchronized { loadedMaps.values.asScala.foreach(_.clear()) }
+ synchronized {
loadedMaps.keySet().asScala.toSeq.foreach(loadedMaps.remove) }
Review Comment:
Flipping the coin, we can also resolve this issue via explicitly copying the
map when snapshotting. This way seems to be simpler to understand, but I see
the proposal as more optimized so OK for me.
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