code: String toExecuteInfo(final int tryCount, final long startedTime, final GatewayServer server,
                           final RedisCluster redis) {
          final StringBuilder sb = new StringBuilder();
          final long executedTime = System.currentTimeMillis() - startedTime;
          sb.append("time=").append(executedTime).append(", ");
          sb.append("retry=").append(tryCount).append(", ");
          sb.append("gateway=").append(server);
          if (redis != null) {
              sb.append(", ").append("connect=").append(redis.connectInfo());
          }
  
          return sb.toString();
      }
docs: time, retry, gateway server information.