HeartSaVioR commented on code in PR #40981:
URL: https://github.com/apache/spark/pull/40981#discussion_r1179961280
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sql/core/src/main/scala/org/apache/spark/sql/execution/streaming/state/RocksDB.scala:
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@@ -247,14 +253,7 @@ class RocksDB(
}
def prefixScan(prefix: Array[Byte]): Iterator[ByteArrayPair] = {
- val threadId = Thread.currentThread().getId
- val iter = prefixScanReuseIter.computeIfAbsent(threadId, tid => {
Review Comment:
Yeah I'm OK to remove optimization but then would like to see iterators to
be sure to be closed. We intend to not close the iterator at the caller side
for reuse, but now we should either ensure closing it here or from caller(s).
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