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https://www.fun123.cn/reference/iot/MQTT.html 

App Inventor 2 UrsPahoMqttClient 拓展 - 物联网轻量级MQTT协议 · App Inventor 2 中文网

... MQTT 发明于 1999 年,为物联网设计的轻量级协议,基于TCP协议实现。 MQTT协议文档:https://mqtt.org/ MQTT服务质量(QoS):3个等级 QoS0:最低质量等级,最多发送一次消息,在消息发出后,接收者不会发送应答,发送者也不...
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When to use actors instead of messaging solutions such as WebSphere MQ or Tibco Rendezvous?

... Akka-Camel would be a better example than ZeroMQ - ZeroMQ is a direct tcp to tcp communication (hence zero - there is no message queue). With AkkaCamel you can abstract away the queue and produce/consume messages direct from an actor without any code to deal with the message queue message push...
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How to stop and restart memcached server?

... is currently runing: sudo ps -e | grep memcached And you can check the TCP or UDP ports if something (e.g. Memcache) is listening to it: netstat -ap | grep TheChosenPort# netstat -ap | grep 11211 For some Linuxes you need to change your commands like: sudo /etc/init.d/memcached start sudo /e...
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How do I do a HTTP GET in Java? [duplicate]

... Technically you could do it with a straight TCP socket. I wouldn't recommend it however. I would highly recommend you use Apache HttpClient instead. In its simplest form: GetMethod get = new GetMethod("http://httpcomponents.apache.org"); // execute method and handle a...
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What browsers support HTML5 WebSocket API?

... Node.js) Understands multiple network protocols out of the box including: TCP, SSL, UDP, HTTP, HTTPS, Websockets, SockJS as fallback for WebSockets Pusher.com is a Websocket cloud service accessible through a REST API. DotCloud cloud platform supports Websockets, and Java (Jetty Servlet Containe...
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unable to start mongodb local server

...rt (27017) command: sudo netstat -tulpn | grep :27017 Output will be: tcp 0 0 0.0.0.0:27017 0.0.0.0:* LISTEN 6432/mongod In my case "6432" is the pid, it may be different in your case. Then kill that process using following command: sudo kill <pid> Thats ...
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Linux日志管理Rsyslog入门 - C/C++ - 清泛网 - 专注IT技能提升

...你想测试Rsyslog性能如何的话,可以考虑使用官方提供的tcpflood。 实例演示 在我们动手之前,有必要了解一下Rsyslog的工作流程,说起来非常简单:首先数据通过输入模块进入主队列,然后经由过滤条件分解到各个子队列,最后...
https://www.tsingfun.com/html/... 

Linux日志管理Rsyslog入门 - C/C++ - 清泛网 - 专注IT技能提升

...你想测试Rsyslog性能如何的话,可以考虑使用官方提供的tcpflood。 实例演示 在我们动手之前,有必要了解一下Rsyslog的工作流程,说起来非常简单:首先数据通过输入模块进入主队列,然后经由过滤条件分解到各个子队列,最后...
https://www.tsingfun.com/html/... 

Linux日志管理Rsyslog入门 - C/C++ - 清泛网 - 专注IT技能提升

...你想测试Rsyslog性能如何的话,可以考虑使用官方提供的tcpflood。 实例演示 在我们动手之前,有必要了解一下Rsyslog的工作流程,说起来非常简单:首先数据通过输入模块进入主队列,然后经由过滤条件分解到各个子队列,最后...
https://www.tsingfun.com/it/cp... 

Linux日志管理Rsyslog入门 - C/C++ - 清泛网 - 专注IT技能提升

...你想测试Rsyslog性能如何的话,可以考虑使用官方提供的tcpflood。 实例演示 在我们动手之前,有必要了解一下Rsyslog的工作流程,说起来非常简单:首先数据通过输入模块进入主队列,然后经由过滤条件分解到各个子队列,最后...