change log to trace

Author: JoaoJandre

engine/storage/snapshot/src/main/java/org/apache/cloudstack/storage/snapshot/DefaultSnapshotStrategy.java

@@ -20,10 +20,6 @@
 import java.util.Arrays;
 import java.util.List;
 import java.util.Objects;
-import java.util.concurrent.ConcurrentHashMap;
-import java.util.concurrent.ConcurrentMap;
-import java.util.concurrent.locks.Lock;
-import java.util.concurrent.locks.ReentrantLock;
 
 import javax.inject.Inject;
 
@@ -106,13 +102,6 @@ public class DefaultSnapshotStrategy extends SnapshotStrategyBase {
 
     private final List<Snapshot.State> snapshotStatesAbleToDeleteSnapshot = Arrays.asList(Snapshot.State.Destroying, Snapshot.State.Destroyed, Snapshot.State.Error, Snapshot.State.Hidden);
 
-    private ConcurrentMap<Long, Lock> locks = new ConcurrentHashMap<>();
-
-    private Lock getLock(Long id) {
-        locks.putIfAbsent(id, new ReentrantLock());
-        return locks.get(id);
-    }
-
     public SnapshotDataStoreVO getSnapshotImageStoreRef(long snapshotId, long zoneId) {
         List<SnapshotDataStoreVO> snaps = snapshotStoreDao.listReadyBySnapshot(snapshotId, DataStoreRole.Image);
         for (SnapshotDataStoreVO ref : snaps) {

engine/storage/snapshot/src/main/java/org/apache/cloudstack/storage/snapshot/SnapshotObject.java

@@ -113,7 +113,7 @@ public DataStore getStore() {
 
     @Override
     public SnapshotInfo getParent() {
-        logger.debug("Searching for parents of snapshot [{}], in store [{}] with role [{}].", snapshot.getSnapshotId(), store.getId(), store.getRole());
+        logger.trace("Searching for parents of snapshot [{}], in store [{}] with role [{}].", snapshot.getSnapshotId(), store.getId(), store.getRole());
         SnapshotDataStoreVO snapStoreVO = snapshotStoreDao.findByStoreSnapshot(store.getRole(), store.getId(), snapshot.getId());
         if (snapStoreVO != null) {
             long parentId = snapStoreVO.getParentSnapshotId();