HeartSaVioR commented on code in PR #40981:
URL: https://github.com/apache/spark/pull/40981#discussion_r1179851039
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sql/core/src/main/scala/org/apache/spark/sql/execution/streaming/state/RocksDB.scala:
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@@ -348,9 +340,8 @@ class RocksDB(
* Drop uncommitted changes, and roll back to previous version.
*/
def rollback(): Unit = {
- closePrefixScanIterators()
- resetWriteBatch()
numKeysOnWritingVersion = numKeysOnLoadedVersion
+ loadedVersion = -1L
Review Comment:
Yeah since we no longer use WriteBatch, we are unable to roll back any
writes and have to load from DFS. We think the rate of failure is small enough
to tolerate the cost, unless the query (or infrastructure) is unstable and
cannot make progress in any way.
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