publish-subscribe

问题 I have a one big monolith application, and now its time to separate some modules to micro services! I read a lot about pub/sub and microservices in Google docs, but can't find answers to my questions: How app.yaml file looks like for my module(microservice)? How app.yaml looks like for my app?(I mean, with microservice) Where I need to declare this module - in application app.yaml or in both app.yaml? How can I use single datastore with my app and my module? My app.yaml now looks like:

问题 I am finding out that even when my NSB process does not handle messages for say DTOXXX, it is still sending an auto-subscribe message to the publisher queue for DTOXXX. This is not the desired behavior. I want the process to publish and subscribe to messages for DTOYYY, but any communication using DTOXXX is strictly send only. If that wasn't clear enough I have 2 assemblies that contains my DTO. I Want to establish a pub/sub bus, but only for assemblies in YYY.dll. As for the DTOs in the

问题 I want to create a Publish-Subscribe infrastructure in which every subscriber will listen to multiple (say 100k) channels. I think to use Redis PubSub for that purpose but I'm not sure if subscribing to thousands of channels is the best practice here. To answer this I want to know how subscribing mechanism in Redis works in the background. Another option is to create a channel per subscriber and put some component in between, that will get all messages and publish it to relevant channels. Any

问题 I am trying to make a game server with node.js , socket.io . The basic idea likes below. Initialize socket.io instance when the server starts Store instance in global scope, so controllers can access it When API calls, we trigger some socket.io event in the controller or some other points Here is the implementation I made ... First, in server.js - entry point let GlobalVars = require('./state/GlobalVars'); const apiRouters = require('./router'); ... app.use('/api', apiRouters); app.get('/',

问题 I'm trying to use scala.collection.mutable.ObservableMap. I grabbed the snippet below from scala-user and copied it to the REPL. The email mentions ticket 2704 which has been marked as fixed but this snippet does not work. So has the syntax changed or is subscribe being called incorrectly? This is on 2.9.0.final scala> import scala.collection.mutable._ import scala.collection.mutable._ scala> import scala.collection.script._ import scala.collection.script._ scala> class MyMap extends HashMap

问题 I am trying to auto-join rooms using XEP-0048 - Bookmarks (http://xmpp.org/extensions/xep-0048.html). I am using RobbieHanson XMPPFramework, ejabberd v13.x So far, I have been able to add bookmark to the room using the following code : -(void) createBookmarkforRoom:(NSString *)roomJid { NSXMLElement *nick = [NSXMLElement elementWithName:@"nick" stringValue:@"Marge"]; NSXMLElement *conference = [DDXMLNode elementWithName:@"conference"]; [conference addAttributeWithName:@"name" stringValue:@

问题 i am trying to implement pubsub using openfire server and asmack library. i have configured my node in such a way that subscribers has to take the approval of publishers now i am trying to read the Message packet using following code but i am not getting any packet. i want to read Message packet because i want to know whenever the subscribers send the request to publishers to get subscribe. PacketTypeFilter filter = new PacketTypeFilter(org.jivesoftware.smack.packet.Message.class);

问题 When building a social application it's common to follow other users or topics as an indication of interest in updates by the user or topic. For example, following other users on Twitter, Friending other people on Facebook or liking a product or brand on Facebook. Pusher has the concept of channels that you subscribe to. Channels are a human readable string that provide a logical identifier to information (e.g. "some-channel-name") and therefore seems to naturally suggest that in a social

问题 Note: Whole sourcecode can be found here: https://github.com/Julian-Th/crowducate-platform/ I have the following pub functions: Meteor.publish('editableCourses', function () { return Courses.find({"canEditCourse": { $in: [ this.userId ] } }); }); Meteor.publish("userData", function () { if (this.userId) { return Meteor.users.find({_id: this.userId}, {fields: {'realname': 1, 'username': 1, 'gender': 1, 'language': 1, 'biography': 1 }}) } }); Meteor.publish("allUsernamesExceptCurrent", function

问题 My configuration: @Bean public ActiveMQConnectionFactory connectionFactory(){ ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory(); connectionFactory.setBrokerURL(DEFAULT_BROKER_URL); return connectionFactory; } @Bean public DefaultMessageListenerContainer listenerContainers() { DefaultMessageListenerContainer container = new DefaultMessageListenerContainer(); container.setConnectionFactory(connectionFactory()); //container.setConnectionFactory(connectionFactory1());