fix

Signed-off-by: Ryan Leung <rleungx@gmail.com>

pkg/utils/grpcutil/grpcutil.go

@@ -252,11 +252,11 @@ func CheckStream(ctx context.Context, cancel context.CancelFunc, done chan struc
 
 // NeedRebuildConnection checks if the error is a connection error.
 func NeedRebuildConnection(err error) bool {
-	return err != nil && err == io.EOF ||
+	return (err != nil) && (err == io.EOF ||
 		strings.Contains(err.Error(), codes.Unavailable.String()) || // Unavailable indicates the service is currently unavailable. This is a most likely a transient condition.
 		strings.Contains(err.Error(), codes.DeadlineExceeded.String()) || // DeadlineExceeded means operation expired before completion.
 		strings.Contains(err.Error(), codes.Internal.String()) || // Internal errors.
 		strings.Contains(err.Error(), codes.Unknown.String()) || // Unknown error.
-		strings.Contains(err.Error(), codes.ResourceExhausted.String()) // ResourceExhausted is returned when either the client or the server has exhausted their resources.
+		strings.Contains(err.Error(), codes.ResourceExhausted.String())) // ResourceExhausted is returned when either the client or the server has exhausted their resources.
 	// Besides, we don't need to rebuild the connection if the code is Canceled, which means the client cancelled the request.
 }