LuciferYang commented on code in PR #36484:
URL: https://github.com/apache/spark/pull/36484#discussion_r867629141
##########
common/kvstore/src/main/java/org/apache/spark/util/kvstore/LevelDBIterator.java:
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@@ -282,4 +273,24 @@ static int compare(byte[] a, byte[] b) {
return a.length - b.length;
}
+ static class LevelDBIteratorWeakReference extends
WeakReference<LevelDBIterator<?>> {
+
+ private final DBIterator it;
+
+ LevelDBIteratorWeakReference(
+ LevelDBIterator<?> referent,
+ ReferenceQueue<? super LevelDBIterator<?>> q) {
+ super(referent, q);
+ it = referent.it;
+ }
+
+ public void close() {
+ try{
Review Comment:
Unlike `RocksDBIterator`, `LevelDBIterator` may throw IOE. Since it is not
be handled to when using the `Finalization` mechanism, it will not be handled
here too . Or change to `com.google.common.io.Closeables.close(it,
swallowIOException= false)` to log the exception?
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