log more data

synced-pool.go

@@ -278,10 +278,13 @@ func (r *RemoteHost) ConfirmChange(id CartId, host string) error {
 		w.Write([]byte(fmt.Sprintf("%s;%s", id, host)))
 		return nil
 	})
-	t, _, err := ReceivePacket(r.connection)
+	t, data, err := ReceivePacket(r.connection)
 	if err != nil {
 		return err
 	}
+	if t == AckError {
+		return fmt.Errorf("error from remote: %s, from %s", string(data), r.Host)
+	}
 	if t != AckChange {
 		return fmt.Errorf("unexpected message type %d", t)
 	}