diff --git a/go/storage/volume_vacuum.go b/go/storage/volume_vacuum.go
index 11dc30c4e..7377afdc9 100644
--- a/go/storage/volume_vacuum.go
+++ b/go/storage/volume_vacuum.go
@@ -38,6 +38,7 @@ func (v *Volume) commitCompact() error {
 	}
 	//glog.V(3).Infof("Pretending to be vacuuming...")
 	//time.Sleep(20 * time.Second)
+	glog.V(3).Infof("Loading Commit file...")
 	if e = v.load(true, false, v.needleMapKind); e != nil {
 		return e
 	}
diff --git a/go/topology/topology_vacuum.go b/go/topology/topology_vacuum.go
index 6d7355e38..48bc8311d 100644
--- a/go/topology/topology_vacuum.go
+++ b/go/topology/topology_vacuum.go
@@ -80,12 +80,15 @@ func batchVacuumVolumeCommit(vl *VolumeLayout, vid storage.VolumeId, locationlis
 	return isCommitSuccess
 }
 func (t *Topology) Vacuum(garbageThreshold string) int {
+	glog.V(0).Infoln("Start vacuum on demand")
 	for _, col := range t.collectionMap.Items {
 		c := col.(*Collection)
+		glog.V(0).Infoln("vacuum on collection:", c.Name)
 		for _, vl := range c.storageType2VolumeLayout.Items {
 			if vl != nil {
 				volumeLayout := vl.(*VolumeLayout)
 				for vid, locationlist := range volumeLayout.vid2location {
+					glog.V(0).Infoln("vacuum on collection:", c.Name, "volume", vid)
 					if batchVacuumVolumeCheck(volumeLayout, vid, locationlist, garbageThreshold) {
 						if batchVacuumVolumeCompact(volumeLayout, vid, locationlist) {
 							batchVacuumVolumeCommit(volumeLayout, vid, locationlist)
diff --git a/go/weed/weed_server/master_server_handlers_admin.go b/go/weed/weed_server/master_server_handlers_admin.go
index 8530e71dd..fb2b18983 100644
--- a/go/weed/weed_server/master_server_handlers_admin.go
+++ b/go/weed/weed_server/master_server_handlers_admin.go
@@ -77,7 +77,7 @@ func (ms *MasterServer) volumeVacuumHandler(w http.ResponseWriter, r *http.Reque
 	if gcThreshold == "" {
 		gcThreshold = ms.garbageThreshold
 	}
-	debug("garbageThreshold =", gcThreshold)
+	glog.Infoln("garbageThreshold =", gcThreshold)
 	ms.Topo.Vacuum(gcThreshold)
 	ms.dirStatusHandler(w, r)
 }