communication

问题 I've a WEB application (with pure Java servlet) that have some heavy computational work, with database access, that can be done in asynchronous mode. I'm planning to use a dedicated server to execute such batch jobs and I'm wondering which tools/techniques/protocols to use for communication between servlets in the WEB server and batch jobs in the new dedicated server. I'm looking at JMS. Is it the right choice? There are industry standard and/or widely adopted techniques? I need also queue

问题 Is it possible to open a communication stream between two R sessions on two different computers? I use sockets to connect sessions if both are on the same computer. I suppose with two different computers, I should try web sockets. httpuv supports R as a web socket server, but unfortunately, I could not find any up-to-date package that supports a client web socket in R. I'm not tied to using web sockets. Any solution that enables communicating between computers in a real time manner would work

问题 We have a server which we connect with .Net remoting. The server is on two network, the client is on two network. The client and the server have only one network in common: Using discovery, we find the IP of the server(in this case: 10.10.10.110). We create the TcpChannel and we connect to the server. The server receives the calls, but when it tries to send some information to the client sink. we get an exception saying that we tried to send data to an unreacheable IP(10.12.10.100). So the

问题 I want to create a communication system with two clients and a server in Netty nio. More specifically, firstly, I want when two clients are connected with the server to send a message from the server and after that to be able to exchnage data between the two clients. I am using the code provided from this example. My modifications in the code can be found here: link It seems that the channelRead in the serverHandler works when the first client is connceted so it always return 1 but when a

问题 If I have a ruby script Daemon that, as it's name implies, runs as a daemon, monitoring parts of the system and able to perform commands which require authentication, for example changing permissions, is there an easy way to have a second ruby script, say client , communicate to that script and send it commands / ask for information? I'm looking for a built in ruby way of doing this, I'd prefer to avoid building my own server protocol here. 回答1: Ruby provides many mechanisms for this

问题 Closed . This question is opinion-based. It is not currently accepting answers. Want to improve this question? Update the question so it can be answered with facts and citations by editing this post. Closed 2 years ago . I have sales people and bean counters who are trying to sell customizations to clients, which is fine. But when a complex change request comes in that I send back a large estimate for, they get confused. Often they come back at me with "Why can't you just add another column?"

问题 Closed . This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 13 days ago . I'm using Python 3,ı want to send input from first raspi and change the output from second raspi.For example ı have a button,when ı press the button,ı want one message to be seen on the screen,when ı release the button ı want the message on the screen to be changed.I did

问题 I would like to create a communication API between my website which was built using rails and another website, so I can send data from my database to there website. So my idea is to use node.js where I will create real-time, so it will work in the following procedure. My Database is connected to rails, rails will send it to redis and then redis will send it to node finally node will send it to the other website using socket.IO The question : Is that valid? Is there easier way? 回答1: Use just

问题 I'm trying to build an Extension which sends data from the popup.html to the tab dome, but I can't get the sendMessage to work and I don't understand why. I'm following this guidline: https://developer.chrome.com/extensions/messaging.html here are my sources: manifest: { "manifest_version": 2, "name": "OMG Campaign Preview Maker", "description": "Easy OMG Campaign Preview Maker", "background": { "scripts": ["background.js"]}, "version": "0.1", "content_scripts": [ { "matches": ["http://*/*",

问题 I'm creating a network of websites that should communicate between themselves, for example to let all of them display an article published on one of them, or display data stored in a database of another subdomain, etc... And this all using ajax for interactivity. Which could be the best (and simplest) way to achieve this? I thought an ajax call could summon a php script that could call another script on another subdomain. Is it the right way? Thanks 回答1: I don't know exactly what you want to