zhaomin1423 commented on code in PR #43502:
URL: https://github.com/apache/spark/pull/43502#discussion_r1379017731
##########
common/kvstore/src/main/java/org/apache/spark/util/kvstore/RocksDBIterator.java:
##########
@@ -272,4 +283,37 @@ static int compare(byte[] a, byte[] b) {
return a.length - b.length;
}
+ static class ResourceCleaner implements Runnable {
+
+ private final RocksIterator rocksIterator;
+ private final RocksDB rocksDB;
+ private final AtomicBoolean status = new AtomicBoolean(true);
+
+ public ResourceCleaner(RocksIterator rocksIterator, RocksDB rocksDB) {
+ this.rocksIterator = rocksIterator;
+ this.rocksDB = rocksDB;
+ }
+
+ @Override
+ public void run() {
+ if (status.compareAndSet(true, false)) {
+ rocksDB.getIteratorTracker().forEach(ref -> {
Review Comment:
```
void notifyIteratorClosed(RocksIterator rocksIterator) {
iteratorTracker.removeIf(ref -> {
RocksDBIterator<?> rocksDBIterator = ref.get();
return rocksDBIterator != null &&
rocksIterator.equals(rocksDBIterator.getRocksIterator());
});
}
```
How about?
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