/** 5) Release the snapshot object for RocksDB and clean up. */
public void releaseSnapshotResources(boolean canceled) {
if (null != kvStateIterators) {
for (Tuple2<RocksIterator, Integer> kvStateIterator : kvStateIterators) {
kvStateIterator.f0.close();
}
kvStateIterators = null;
}
if (null != snapshot) {
if (null != stateBackend.db) {
stateBackend.db.releaseSnapshot(snapshot);
}
snapshot.close();
snapshot = null;
}
if (null != readOptions) {
readOptions.close();
readOptions = null;
}
if (canceled) {
try {
if (null != snapshotResultStateHandle) {
snapshotResultStateHandle.discardState();
}
} catch (Exception ignored) {
LOG.warn("Exception occurred during snapshot state handle cleanup: " + ignored);
}
}
}
