jms tuning

DeliveryMode indicates the transmission mode of the message: deliverymode.non_persistent --Indicates that the message does not exist until the message is consumed, if the JMS Providers (such as active MQ) is down, after the reboot. deliverymode.persistent --Indicates that the message still exists if the JMS Providers (such as active MQ) is down before the message is consumed. Can be set by producer,

It programmer development Essentials-all kinds of resources download list, history of the most IT resources, personal collection summary. Based on Spring+jms+activemq+tomcat, the version I'm using is as follows: Spring 2.5 ActiveMQ 5.4.0 Tomcat 6.0.30 The following learning and configuration, to achieve the basic message service functions: Send and receive. Spring provides very good support for JMS, which

Running environment: Weblogic 92, jdk150 Through the JMX service of weblogic, we can directly obtain mbeans to monitor the JMS server, instead of opening the weblogic online console for manual monitoring every time, which can be completely automated. The source code is as follows: Import java. io. IOException; Briefly introduce this code, To capture mbeans of JMX, initialize the MBean object first,JmsService = new ObjectName ( You can check the N

Temporaryqueue and temporarytopic can be seen literally as "temporary" destinations. You can create a session, for example:Temporaryqueue replyqueue = session. createtemporaryqueue ();Although they are created by sessions, their life cycle is indeed the entire connection. If two sessions are created on one connection, the temporaryqueue or temporarytopic created by one session can also be accessed by another session. If the two sessions are created by different connections, the temporaryqueue cr

The problems and solutions of the single machine affairs of Taobao's mass storage http://blog.csdn.net/jiao_fuyou/article/details/15499261 This article is quite good. Core keywords: idempotent. Message Queue Activemq:redeliver, how to do the retry mechanism does not result in a piece of information being executed multiple times. Http://stackoverflow.com/questions/4934386/avoiding-duplicated-messages-on-jms-activemq this inside mentioned two. One is

message destination and consumer message source. //In PTP mode, destination refers to the queue//In the Publish subscription model, destination refers to the topicDestination Destination = Session.createqueue ("queue1"); //5. Use session to create a message object producer or consumerMessageProducer MessageProducer =session.createproducer (destination); //6. If yes, the producer, using the MessageProducer Setdelivermode method setting, the persistence and non-persistence of messagesMessageprodu

("UIL2ConnectionFactory"); queue = (Queue) jndiContext.lookup(queueName); } catch (NamingException e) { System.out.println("JNDI API lookup failed: " + e.toString()); } /* * Create connection, session, sender objects. * Send the message. * Cleanup JMS connection. */ try { queueConnection = queueConnectionFactory.createQueueConnection(); queueSession = queueConnection.createQ

The two message transmission modes Topic and Queue in the Jms specification are compared as follows (): 　 Topic Queue Summary Publish Subscribe messaging Publish and Subscribe messages Point-to-Point Status or not Topic data is stateless by default. By default, Queue data is stored as files on the mq server. For example, Active MQ is generally stored under $ AMQ_HOME/data/kr-store/data. You can also config

The company's technology platform in the docking of IBM MQ message middleware with a broker, messages sent to MQ have more message header information:RHF2, resulting in the reception of the message is not working properly. Record how this problem is handled here.A parameter, targetclient, is provided in IBM MQ that can be used to control whether the message header is enabled in a JMS message. When using JMS

restarts at D2, the publisher sends M6 and M7. Now S'll receive M4, M5 followed by M6 and M7 and all for future messages. i.e. S would receive all messages from M1. M7. This is the difference between durable and non-durable consuming. If S were a non-durable consumer then it would only has received M1, M2, M3 and M6, M7-not M4 and M5. i.e because the subscription is durable, S would receive every message sent to T whether the Subscriber are running or not. For non-durable topics, only messages

Spring Integrated JMS Usage The JMS full name Java Message Service, which is used to send messages. 1. Advantages1. Relative RPC achieves the decoupling effect: Decoupling from the Service Interface name (changing the interface name in RPC, the client needs to make modifications), decoupling from the service location (RPC needs to configure the service's network location to use the service),

JMS-based Active MQ message storage, jmsmqI. Message Storage Methods ActiveMQ supports persistent messages and non-persistent messages in JMS specifications. Persistent messages are usually used to ensure that messages are consumed by consumers regardless of whether the consumers are online or not. After the message is confirmed to be consumed, it will be deleted from the storage. Non-persistent messages

Use Apache Flume to read the JMS Message Queuing message and write the message to the Hdfs,flume agent configuration as follows:Flume-agent.conf#name the components in this agentagenthdfs.sources = Jms_sourceAgenthdfs.sinks = Hdfs_sinkAgenthdfs.channels = Mem_channel# Describe/configure The sourceAgentHdfs.sources.jms_source.type = JMS# Bind to all interfacesAgentHdfs.sources.jms_source.initialContextFactor

"); = App.getbean (jmstemplate. Class); Jmstemplate.convertandsend ("Gamelife.alert.queue", "test Message");Get jmstemplate and then call Convertandsend to send a message to the specified channelTo test the consumer end:New Classpathxmlapplicationcontext ( "Applicationcontext.xml"); = (jmstemplate) context.getbean ("Jmstemplate"); // System.out.println (jmstemplate = = null); String message = (string) jmstemplate . Receiveandco

1: ActiveMQ Zookeeper-based master-slave (LevelDB master/slave) construction and Spring-boot use (http://www.cnblogs.com/yshyee/p/7277801. HTML), the following code is used to send the JMS message:@Service Public class Producer { @Autowired private jmsmessagingtemplate jmstemplate; Public void Final String message) { jmstemplate.convertandsend (destination, message);} }After using JMeter for stress testing, it was found that

Select Activemq. To establish a simple Maven project, the Pom.xml is as follows: To create a test class: Package com.gof.jms.test; Import javax.jms.Connection; Import Javax.jms.ConnectionFactory; Import Javax.jms.DeliveryMode; Import javax.jms.Destination; Import Javax.jms.Message; Import Javax.jms.MessageConsumer; Import Javax.jms.MessageProducer; Import javax.jms.Session; Import Javax.jms.TextMessage; Import Org.apache.activemq.ActiveMQConnectionFactory; public class Simplemessagesend