skip not found error in case of race condition

weed/filer/redis/universal_redis_store.go

@@ -171,6 +171,9 @@ func (store *UniversalRedisStore) ListDirectoryEntries(ctx context.Context, full
 		entry, err := store.FindEntry(ctx, path)
 		if err != nil {
 			glog.V(0).Infof("list %s : %v", path, err)
+			if err == filer_pb.ErrNotFound {
+				continue
+			}
 		} else {
 			if entry.TtlSec > 0 {
 				if entry.Attr.Crtime.Add(time.Duration(entry.TtlSec) * time.Second).Before(time.Now()) {

weed/filer/redis2/universal_redis_store.go

@@ -175,6 +175,9 @@ func (store *UniversalRedis2Store) ListDirectoryEntries(ctx context.Context, ful
 		entry, err := store.FindEntry(ctx, path)
 		if err != nil {
 			glog.V(0).Infof("list %s : %v", path, err)
+			if err == filer_pb.ErrNotFound {
+				continue
+			}
 		} else {
 			if entry.TtlSec > 0 {
 				if entry.Attr.Crtime.Add(time.Duration(entry.TtlSec) * time.Second).Before(time.Now()) {