activemq

In the following test I'm trying to simulate the following scenario: A message queue is started. A consumer designed to fail during message processing is started. A message is produced. The consumer starts processing the message. During processing an exception is thrown to simulate message processing failure. The failing consumer is stopped. Another consumer is started with the intent to pick up the redelivered message. But my test fails and the message is not redelivered to the new consumer. I'll appreciate any hints on this. MessageProcessingFailureAndReprocessingTest.java

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I followed a simple example of setting up and running embedded ActiveMQ with Spring Boot (version 1.4.X). Here's link to the example https://spring.io/guides/gs/messaging-jms/ My class is structured as below: @SpringBootApplication @EnableJms public class Application { @Autowired ConfigurableApplicationContext context; @Bean JmsListenerContainerFactory<?> myJmsContainerFactory(ConnectionFactory connectionFactory) { SimpleJmsListenerContainerFactory factory = new SimpleJmsListenerContainerFactory(); factory.setConnectionFactory

I have a need to create a server farm that can handle 5+ million connections, 5+ million topics (one per client), process 300k messages/sec. I tried to see what various message brokers were capable so I am currently using two RHEL EC2 instances (r3.4xlarge) to make lots of available resources. So you do not need to look it up, it has 16vCPU, 122GB RAM. I am nowhere near that limit in usage. I am unable to pass the 600k connections limit. Since there doesn't seem to be any O/S limitation (plenty of RAM/CPU/etc.) on either the client nor the server what is limiting me? I have edited /etc

javax.jms.jmsexception:无法从内容生成正文。 可序列化类不可用于代理 原因：java.lang.ClassNotFoundException: 禁止类com.javaliao.portal.model.TbLogVisit不信任将此类序列化为objectMessage负载。 有关如何配置受信任类的详细信息，请查看http://activemq.apache.org/objectmessage.html。 控制台打印：javax.jms.JMSException: Failed to build body from content. Serializable class not available to broker. Reason: java.lang.ClassNotFoundException: Forbidden class com.javaliao.portal.model.TbLogVisit! This class is not trusted to be serialized as ObjectMessage payload. Please take a look at http://activemq.apache.org/objectmessage.html for more information on how to configure

Apollo以ActiveMQ原型为基础，是一个更快、更可靠、更易于维护的消息代理工具。Apache称Apollo为最快、最强健的STOMP（Streaming Text Orientated Message Protocol，流文本定向消息协议）服务器. 它采用一个完全不同的消息分发架构，同ActiveMQ一样支持多种协议。如STOMP,AMQP,MQTT,Openwire,SSL和WebSockets. 一：linux下Apollo的安装 下载 apache-apollo-1.7-unix-distro.tar.gz 文件放到/usr/local/src目录下面 加压缩文件 tar -zxvf apache-apollo-1.7-unix-distro.tar.gz -C /usr/local 二：创建broker实例 一个broker实例是一个文件夹，其中包含所有的配置文件及运行时的数据，不如日志和消息数据。Apollo强烈建议不要把实例同安装文件放在一起。 在linux操作系统下面，建议将实例建在/var/lib/目录下面 cd /var/lib /usr/local/apache-apollo-1.7/bin/apollo create mybroker 创建成功后，在/var/lib/mybroker目录下可以看到如下目录 bin--------------------

I am using Spring's STOMP over WebSocket implementation with a full-featured ActiveMQ broker. When users SUBSCRIBE to a topic, there is some permissions logic that they must pass through before being successfully subscribed. I am using a ChannelInterceptor to apply the permissions logic, as configured below: WebSocketConfig.java: @EnableWebSocketMessageBroker public class WebSocketConfig extends AbstractWebSocketMessageBrokerConfigurer { @Override public void registerStompEndpoints(StompEndpointRegistry registry) { registry.addEndpoint("/stomp") .setAllowedOrigins("*") .withSockJS(); }

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