rpc | 易学教程

How to invoke client's callback at server end?

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问题 RPC do things like this: server define a function foo_max(para) client call foo_max, send 'max+para' server get 'max' and call foo_max(para) server send return val client get result and return But this way is not flexible because I must define all functions at server end. My case is that I want to support user-defined callback function at client end, so how can I call the client's callback funciton at server end? Thanks 来源： https://stackoverflow.com/questions/19740380/how-to-invoke-clients

C#远程调用python(简称RPC)

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以前都是使用C#调用webservice服务或者wcf服务，由于特殊需求，需要调用python进行处理，大概流程是：客户端使用C#,服务端使用python,客户端发起调用，服务器执行，服务端执行后把结果返回给客户端通信的桥梁可以使用XMLRPC 2019年12月9日修改：注意：如果把python代码运行在远程的服务器上，需要把下面的服务端的python代码中的代码server = SimpleXMLRPCServer(('localhost',666))改为 server = SimpleXMLRPCServer(("",666), allow_none=True)，不然会出现客户端无法连接服务器的情况本人测试使用的vs版本是vs2012 准备工作： 1 C#开发的工具 2 安装python 3 需要下载CookComputing.XmlRpcV2.dll库不过我发现官网（fanqiang了也不行,敏感字眼居然审核不给通过）和Nuget（可能是我vs的问题）都无法下载，不过我还是把地址贴出来官网地址： http://www.xml-rpc.net/ Nuget地址： https://www.nuget.org/packages/xmlrpcnet 网盘地址：链接：https://pan.baidu.com/s/1wj05WR8-RNsW4qjAoHfWfA 提取码

Avro RPC multiple Responders for one NettyServer

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问题 I'm studying Avro RPC and I'm trying to create a simple example to better understand it. But I'm facing a difficulty: I can't run a server with more than one Responder , as the NettyServer constructor only allows me to use one: public NettyServer(Responder responder, InetSocketAddress addr) So, if I have more than one IDL, like this: @namespace("foo.bar") protocol FooProtocol { void foo(); } @namespace("foo.bar") protocol BarProtocol { void bar(); } I'm not able to add both to my NettyServer

“The RPC server is unavailable”

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问题 this is driving me crazy. I have 2 testing machine, one XP, and one Vista. I am running the same commands on both. These commands include creating a logman counter ( like a perfmon with command prompt), starting these counters, then stopping them, and then deleting them. The problem is this: On XP they work perfectly, I am getting all the statistics, and it works always. On Vista, they work on the first time, but then I always get the error back, "The RPC server is unavailable." This happens

Communication between two separate applications

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问题 I have developed a windows service which reads data from a database, the database is populated via a ASP.net MVC application. I have a requirement to make the service re-load the data in memory by issuing a select query to the database. This re-load will be triggered by the web app. I have thought of a few ways to accomplish this e.g. Remoting, MSMQ, or simply making the service listen on a socket for the reload command. I am just looking for suggestions as to what would be the best approach

java.lang.ClassNotFoundException: com.google.gwt.user.client.rpc.RemoteService

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问题 I am getting the following exception when deploying my war file in Tomcat 6 java.lang.ClassNotFoundException: com.google.gwt.user.client.rpc.RemoteService So I tried to use just the most simplest gwt project by using webAppCreator: The class it is trying to load is not in gwt-servlet.jar but does exist in gwt-user.jar. All places say I don't need gwt-user.jar to be deployed. This is with gwt 2.5.1. HELP!!! used webAppCreator as follows: webAppCreator com.mytest.TestGwtRpc Then used the build

Uncaught TypeError: __webpack_require__(…).connect is not a function at connect (index.js:47532) at Object.connect (

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问题 I am getting this error when I am trying to test code on react project: var amqp = require('amqplib/callback_api'); export function start2 (conn) { console.log("hello") amqp.connect('amqp://localhost:8000', function (err, conn) { conn.createChannel(function(err, ch) { var q = 'frontend'; var msg = 'Hello!'; ch.assertQueue(q, {durable: false}); // Note: on Node 6 Buffer.from(msg) should be used ch.sendToQueue(q, new Buffer(msg)); console.log(" [x] Sent %s", msg); }); setTimeout(function() {

进程间通信/RPC/Thrift RPC介绍

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进程间通信 (IPC) 分为（1）本地过程调用(LPC)LPC用在多任务操作系统中，使得同时运行的任务能互相会话。这些任务共享内存空间使任务同步和互相发送信息。（2）远程过程调用(RPC)RPC类似于LPC，只是在网上工作 RPC（Remote Procedure Call远程过程调用）是一种应用层协议，用于实现进程间通信，并封装了远程调用的细节。目前的RPC框架大致有两种不同的侧重方向，一种偏重于服务治理（如Dubbo、DubboX）等，另一种偏重于跨语言调用（如Thrift、gRPC、Hessian等）。 Thrift是一个典型的C/S结构，用户在thrift描述文件（IDL）中声明自己的服务，包括相关数据结构定义和服务接口声明；通过代码生成工具生成服务端和客户代码（可以为不同语言），开发人员在服务端实现服务，在客户端调用服务即可实现不同语言间的远程服务调用。 Thrift RPC 分层架构如下：来源： CSDN 作者： wyy_blog 链接： https://blog.csdn.net/qq_36616692/article/details/103486583

Which rpc/messaging framework would best fit this case?

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问题 Use case : one Java process with one or two C++ processes, always on the same machine. Bidirectional, binary, non-persistent communication is required. One of the C++ process is responsible for instantiating the other processes. I have given a look around, seeing things like XML/JSON-RPC, Protocol Buffers, Thrift, zeromq, etc. If possible, portability would be nice, but Windows XP/7 is required. 回答1: In general you should separate message transport and message de-/serialization in your design

Communication Between Microservices

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问题 Say you have microservice A,B, and C which all currently communicate through HTTP. Say service A sends a request to service B which results in a response. The data returned in that response must then be sent to service C for some processing before finally being returned to service A. Service A can now display the results on the web page. I know that latency is an inherent issue with implementing a microservice architecture, and I was wondering what are some common ways of reducing this