Warning: file_put_contents(/www/wwwroot/ppbbbu/n94.cn/cache/a93920e4db1ef37ec9f5fbdda8986ec5.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbbu/n94.cn/index.php on line 55 keepalive message是什么意思，keepalive message的翻译，keepalive message音标、读音、用法和例句_94生活常识网有道词典
In order to maintain presence, the chat application can send keep-alive messages on the websocket to prevent it being closed due to an idle timeout. 为了保持存在的状态，聊天应用要发送“连接保持（Keep Alive）”的消息给WebSocket，来避免该连接因为闲置超时而关闭。