diff --git a/internal/distributed/proxy/client/client.go b/internal/distributed/proxy/client/client.go
index b3b50d44db..f09e0f0aa1 100644
--- a/internal/distributed/proxy/client/client.go
+++ b/internal/distributed/proxy/client/client.go
@@ -97,6 +97,7 @@ func (c *Client) GetComponentStates(ctx context.Context) (*internalpb.ComponentS
 	return ret.(*internalpb.ComponentStates), err
 }
 
+//GetStatisticsChannel return the statistics channel in string
 func (c *Client) GetStatisticsChannel(ctx context.Context) (*milvuspb.StringResponse, error) {
 	ret, err := c.grpcClient.ReCall(ctx, func(client interface{}) (interface{}, error) {
 		if !funcutil.CheckCtxValid(ctx) {