RabbitMQ | 易学教程

Does windows 10 connection limit apply to self-hosted applications?

阅读更多关于 Does windows 10 connection limit apply to self-hosted applications?

问题 I am planning to run RabbitMQ on Windows 10 as well as other services, including Self-Hosted ASP.NET Application. I don't want to use Windows Server from reasons I don't want to explain here. Will I have problems after hitting 10 concurrent connections limit of Windows 10? Number of consumers can reach even 30-50. 回答1: According to the Microsoft EULA for Windows 10: (iii) Device connections. You may allow up to 20 other devices to access the software installed on the licensed device for the

RabbitMq学习——Springboot整合rabbitmq之topic模糊匹配配置(四)

阅读更多关于 RabbitMq学习——Springboot整合rabbitmq之topic模糊匹配配置(四)

一、前言 rabbitmq中的交换机类中，topic作为一种很常用的转发模式。在之前的博文中，除了fanout模式外，其他的有关转发器和消息队列的我们都有指定routingkey的写法，在进行配置消息转发器和消息队列时，都是按照具体的routingkey实现关联。但上述操作限制太死板，如何能够进行动态匹配呢？接下来我们引入topic模式。二、配置项 2.1、代码配置项编写前的准备上图中就是我们本篇博客需要配置的内容，其中流程为： 1、消息生产者发送消息至指定的转发器上。 2、消息转发器按照配置好的关联规则，推送消息至对应的消息队列上。我们在配置文件中，需要做如下几件事： 1、bean配置exchange，取名 topicExchange 。 2、消息队列两个，分别是 topicQueue1 、 topicQueue2 。 3、消息转发器和队列一的绑定为： #.xiangjiao.* 4、消息转发器和队列二的绑定为： #.xiangjiao.# 2.2、代码配置项的编写 2.2.1、注入队列和转发器，并进行绑定 import org . springframework . amqp . core . Binding ; import org . springframework . amqp . core . BindingBuilder ; import org .

Installing RabbitMQ PHP: Fatal error: Class 'AMQPConnection' not found

阅读更多关于 Installing RabbitMQ PHP: Fatal error: Class 'AMQPConnection' not found

问题 I've already installed the RabbitMQ on my server and everything is working fine with it. I already tried to send and receive queued messages with a Java client and everything went perfect. Now I need to install a PHP RabbitMQ client because I want to communicate a Java program with a PHP webpage, but this time I'm not beign so lucky. I already followed the steps of the official webpage for this installation, specifically these steps: # Download the rabbitmq-c library hg clone http://hg

Queue Fairness and Messaging Servers

阅读更多关于 Queue Fairness and Messaging Servers

问题 I'm looking to solve a problem that I have with the FIFO nature of messaging severs and queues. In some cases, I'd like to distribute the messages in a queue to the pool of consumers on a criteria other than the message order it was delivered in. Ideally, this would prevent users from hogging shared resources in the system. Take this overly simplified scenario: There is a feature within an application where a user can empty their trash can. This event dispatches a DELETE message for each item

Maximum permit count exceeded

阅读更多关于 Maximum permit count exceeded

问题 I am facing exception while publishing some data in rabbitMQ with java code. In case of high load when we are trying to publish too many concurrent data in rabbit. Following trace is printing. java.lang.Error: Maximum permit count exceeded at java.util.concurrent.Semaphore$Sync.tryReleaseShared(Semaphore.java:192) at java.util.concurrent.locks.AbstractQueuedSynchronizer.releaseShared(AbstractQueuedSynchronizer.java:1341) at java.util.concurrent.Semaphore.release(Semaphore.java:426) at com

Dynamic SendTo annotation

阅读更多关于 Dynamic SendTo annotation

问题 I have Java code as following to receive messages form a queue, process it and write processed message to another queue. @RabbitListener(queues = "rawFusion") @SendTo("Fusion") public String receiverFusion(Object _message) { String message = getMessage(_message); return messageParser.parse(message); } Here i always get messages from "rawFusion" queue and write it into "Fusion" queue. The thing I want to do is, writing messages different queues depending on some conditions. So i would like

RabbitMQ get message send confirm

阅读更多关于 RabbitMQ get message send confirm

问题 Is it possible in RabbitMQ to get confirm messages, when I send to queue? Thanks! 回答1: You will probably want to use the return listener and mandatory flag on basic publish 来源： https://stackoverflow.com/questions/11652368/rabbitmq-get-message-send-confirm

RabbitMQ get message send confirm

阅读更多关于 RabbitMQ get message send confirm

Can you publish a message while processing a queue in RabbitMQ .Net Client?

阅读更多关于 Can you publish a message while processing a queue in RabbitMQ .Net Client?

问题 I have a couple messaging scenarios I need help with using RabbitMQ 2.1.0 in c#... 1) I would like to have a subscriber listening to "raw" queue; then do some preprocessing and publish a new message, such as "preprocessed" to the same exchange. 2) similar to 1 but publish to a different exchange I noticed in the .Net Client User Guide that it says do not call .basicPublish during a callback as it blocks threads. using (IConnection conn = connectionFactory.CreateConnection()) { using (IModel

Erlang - ALIVE2_REQ from non local address

阅读更多关于 Erlang - ALIVE2_REQ from non local address

问题 I am testing my Erlang environment and it is not working. I am using debian 64 bit. Erlang R15B01 (erts-5.9.1) [source] [64-bit] [async-threads:0] [kernel-poll:false] In one terminal I type the following command to start elang in debug mode pkill epmd epmd -d In another terminal I type erl -sname test I get the following error epmd: Wed Feb 25 13:00:28 2015: ** got ALIVE2_REQ epmd: Wed Feb 25 13:00:28 2015: ALIVE2_REQ from non local address This has prevented me from running rabbitmq server