update

go/topology/store_replicate.go

@@ -83,6 +83,8 @@ func distributedOperation(masterNode string, store *storage.Store, volumeId stor
 		for i := 0; i < length; i++ {
 			ret = ret && <-results
 		}
+		// we shouldn't check ReplicaPlacement because the needle have been written in head volume
+
 		// if volume := store.GetVolume(volumeId); volume != nil {
 		// 		if length+1 < volume.ReplicaPlacement.GetCopyCount() {
 		// 			glog.V(0).Infof("replicating opetations [%d] is less than volume's replication copy count [%d]", length+1, volume.ReplicaPlacement.GetCopyCount())