Active MQ

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What is ActiveMQ

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Active MQ

  1. 1. - JMS 시스템의 이해Uajjang.com 미디어 검색팀 정경석 2012. 05 .09
  2. 2.  What is JMS? Why JMS? Producer/Consumer Type of JMS model About ActiveMQ When is the right time to use ActiveMQ? How to use ActiveMQ? How to monitoring in ActiveMQ? Fault tolerance and High availability
  3. 3.  JMS is Java Message Service Standard J2EE messaging API JMS is asynchronous in nature Producer/Consumer pattern의 구현체 Producer, Message, Consumer로 구성됨. Message broker system  메시지 전송 중계를 담당.  Message의 전송을 보장.  즉, JMS를 통해 전송된 메시지는 반드시 목적지에 도달함.
  4. 4.  Heterogeneous application integration  Unix <-> IBM Host, Java <-> C++  이기종, 다른 언어로 작성된 Applicaion간의 업무 통 합이 가능함. High reliability and the performance Do not need to concern about communication.  데이터의 통신은 JMS가 담당 하므로 개발자는 순수 하게 메시지에만 관심을 가질 수 있음  메시지 전송의 투명성을 가짐.
  5. 5. Broker(JMS) Producer Consumer 생산자는 메시지를 만들어서 Broker에게 전송. 소비자는 Broker로 부터 메시지를 수신 즉, 메시지가 생성되어 소비하기까지의 과정을 중계하는 역할
  6. 6.  Point to Point(Sender/Receiver)  하나의 메시지는 하나의 목적지로만 전달됨.  특정한 App이 메시지를 수신하도록 유도 가능. Sender Queue Receiver 1 Receiver 2 Publish and Subscribe  하나의 메시지는 다중의 목적지로 전달됨.  모든 App이 메시지를 수신 Publisher Topic Subscriber Subscriber
  7. 7.  Most popular and powerful open source Message Broker Java based JMS implementation Spring Integration with ActiveMQ Fault tolerance(High availability) Easy to Scale out Supports a large number of Cross Language Clients(C#, C++, Perl, PHP, Python, Ruby, Delphi…)
  8. 8.  RPC의 대체(Async) Event Driven Architecture with POJOs (Shopping) Software적인 scalability를 보장받고자 하는 경 우(SOA) 메시지 전송의 보장이 필요한 경우(System간) Transaction load balancing 필요한 경우 각 시스템에 동일한 메시지를 전달해야 하는 경 우(Notification)
  9. 9.  Install ActiveMQ(using default setting). Write sender application(using ActiveMQ Lib) Write receiver application(using ActiveMQ Lib) Broker(JMS) Producer Consumer (Sender) (Receiver)
  10. 10. Write sender applicationActiveMQConnectionFactory connectionFactory = newActiveMQConnectionFactory(“tcp://10.1.0.11:61616”);Connection connection = connectionFactory.createConnection();connection.start();// Create the sessionsession = connection.createSession(true, Session.AUTO_ACKNOWLEDGE);destination = session.createQueue(“com.jjanglive.jPush”);// Create the producer.producer = session.createProducer(destination);producer.setDeliveryMode(DeliveryMode.NON_PERSISTENT);TextMessage textMessage = session.createTextMessage(“This is a sample message!!”);producer.send(textMessage);
  11. 11. Write receiver application with Springpublic class SampleMessageHandler implements MessageListener {@Overridepublic void onMessage(Message message) { // do something System.out.println(“Message Received!!!!!!!!”);}
  12. 12. Spring setting<bean id="connectionFactory"class="org.apache.activemq.spring.ActiveMQConnectionFactory"><property name="brokerURL" value="failover:tcp://10.4.0.101:61616" /></bean><bean id="jPushQueue" class="org.apache.activemq.command.ActiveMQQueue"><constructor-arg index="0" value="com.jjanglive.jPush" /></bean><bean class="org.springframework.jms.listener.DefaultMessageListenerContainer"><property name="connectionFactory" ref="connectionFactory" /><property name="destination" ref="jPushQueue" /><property name="messageListener" ref="jMessageListenerAdapter" /></bean><bean id="jMessageListenerAdapter"class="org.springframework.jms.listener.adapter.MessageListenerAdapter"><constructor-arg><bean class="com.jjanglive.jpush.message.handler.JPushMessageHandler"></bean></constructor-arg></bean>
  13. 13. Connect to http://server_address:8161/admin
  14. 14. Broker down case MQ Client MQ Client … MQ Client Broker Agent Failover connect Active Active Active MQ 1 MQ 2 … MQ n Receiver 1 Receiver 2 … Receiver n 특정 Broker가 Down된 경우 MQ Client와 Receiver는 자동으로 down을 감 지하고 살아 있는 Broker를 찾아 auto reconnect

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