diff --git a/server/datasource/etcd/kv/kv_cache.go b/server/datasource/etcd/kv/kv_cache.go
index 74012cfb..7cf65297 100644
--- a/server/datasource/etcd/kv/kv_cache.go
+++ b/server/datasource/etcd/kv/kv_cache.go
@@ -221,9 +221,9 @@ func (kc *Cache) DeleteKvDoc(kvID string) {
 	kc.kvDocCache.Delete(kvID)
 }
 
-func Search(ctx context.Context, req *CacheSearchReq) (*model.KVResponse, bool) {
+func Search(ctx context.Context, req *CacheSearchReq) (*model.KVResponse, bool, error) {
 	if !req.Opts.ExactLabels {
-		return nil, false
+		return nil, false, nil
 	}
 
 	openlog.Debug(fmt.Sprintf("using cache to search kv, domain %v, project %v, opts %+v", req.Domain, req.Project, *req.Opts))
@@ -261,7 +261,7 @@ func Search(ctx context.Context, req *CacheSearchReq) (*model.KVResponse, bool)
 		}
 	}
 	result.Total = len(result.Data)
-	return result, true
+	return result, true, nil
 }
 
 func (kc *Cache) getKvFromEtcd(ctx context.Context, req *CacheSearchReq, kvIdsLeft []string) ([]*model.KVDoc, error) {
diff --git a/server/datasource/etcd/kv/kv_dao.go b/server/datasource/etcd/kv/kv_dao.go
index 2332b586..d7260dfd 100644
--- a/server/datasource/etcd/kv/kv_dao.go
+++ b/server/datasource/etcd/kv/kv_dao.go
@@ -524,15 +524,18 @@ func (s *Dao) listData(ctx context.Context, project, domain string, options ...d
 	}
 
 	if Enabled() {
-		result, useCache := Search(ctx, &CacheSearchReq{
+		result, useCache, err := Search(ctx, &CacheSearchReq{
 			Domain:  domain,
 			Project: project,
 			Opts:    &opts,
 			Regex:   regex,
 		})
-		if useCache {
+		if useCache && err == nil {
 			return result, opts, nil
 		}
+		if useCache && err != nil {
+			openlog.Error("using cache to search kv failed: " + err.Error())
+		}
 	}
 
 	result, err := matchLabelsSearch(ctx, domain, project, regex, opts)