kafka vs activemq

Kafka topic offset requirements Brief: during development, we often consider it necessary to modify the offset of a consumer instance for a certain topic of kafka. How to modify it? Why is it feasible? In fact, it is very easy. Sometimes we only need to think about it in another way. If I implement kafka consumers myself, how can I let our consumer code control t

Recently deployed ACTIVEMQ, found that some servers can open the background management URL, some servers cannot open, jetty reported 503 Service unavailable.After a long time finally found the problem, now the deployment and resolution process to take notes as follows:Installation Deployment steps:# See if it comes with JavaRpm-qa | grep java# Uninstall Linux comes with the OpenjavaYumRemove-y Java# orRPM-E java# upload or network download JDK 7rz JDK

I. Overview and INTRODUCTION ActiveMQ is an open source server for Apache, the most popular, powerful instant messaging and integration model. ActiveMQ is a JMS provider implementation that fully supports the JMS1.1 and the Java EE 1.4 specification. Provides client support across languages and protocols, with easy to use in full support for JMS 1.1 and 1.4 using the Java EE Enterprise Integration model and

ACTIVEMQ ClusterACTIVEMQ has a powerful and flexible cluster function, but in the process of use will find a lot of shortcomings, ACTIVEMQ cluster way mainly by two kinds: Master-slave and broker Cluster.1, Master-slaveIn Master-slave mode, only master provides services, slave is the real-time backup of Master's data to ensure the reliability of the message. When master fails, slave automatically upgrades t

ACTIVEMQ ClusterACTIVEMQ has a powerful and flexible cluster function, but in the process of use will find a lot of shortcomings, ACTIVEMQ cluster way mainly by two kinds: Master-slave and broker Cluster.1, Master-slaveIn Master-slave mode, only master provides services, slave is the real-time backup of Master's data to ensure the reliability of the message. When master fails, slave automatically upgrades t

Overview Apache ActiveMQ is a very popular, powerful open source messaging bus service, ActiveMQ fully supports the JMS1.1 and the Java EE 1.4 specification.The official introduction is as follows Apache Activemq™is The most popular and powerful open sourceMessaging and Integration Patterns server. Apache ActiveMQ is

Java Message Mechanism ActiveMQ entry instance, javaactivemq 1. Download ActiveMQGo to the official website download: http://activemq.apache.org/I downloaded ActiveMQ 5.8.0 Release.2. Run ActiveMQUncompress apache-activemq-5.8.0-bin.zip, and double-click the apache-activemq-5.5.1 \ bin \

ACTIVEMQ version: 5.9.1 JDK version: 1.6_45 One, unzip the installation package, and assign permissions [Hadoop@fedora1 ~]$ tar-xzf apache-activemq-5.9.1-bin.tar.gz [hadoop@fedora1 ~]$ chmod-r 775 apache-activemq-5.9.1 two. Modify the Activemq startup file [Hadoop@fedora1 ~]$ cd apache-

This was a common question asked by many Kafka users. The goal of this post are to explain a few important determining factors and provide a few simple formulas.More partitions leads to higher throughputThe first thing to understand are that a topic partition are the unit of parallelism in Kafka. On both the producer and the broker side, writes to different partitions can be do fully in parallel. So expensi

Originally a distributed messaging system developed by LinkedIn, Kafka became part of Apache, which is written in Scala and is widely used for horizontal scaling and high throughput. At present, more and more open source distributed processing systems such as Cloudera, Apache Storm, spark support and Kafka integration. 1 overview Kafka differs from traditional me

The purpose of this paper is to realize ACTIVEMQ login authentication by developing customized Plug-ins. Of course, ACTIVEMQ can do simple authentication by setting up a user, password, and connection in the configuration file. Think about this scenario: 1. Each MQTT client has its own clientid, user, and password 2. Over time, the original MQTT client no longer allowed access to broker, while the new MQTT

Installing the Kafka cluster on CentOS Installation Preparation: Version Kafka version: kafka_2.11-0.9.0.0 Zookeeper version: zookeeper-3.4.7 Zookeeper cluster: bjrenrui0001 bjrenrui0002 bjrenrui0003 Zookeeper cluster construction See: Installing Zookeeper clusters on CentOS Physical environment Install three physical machines: 192.168.100.200 bjrenrui0001 (run 3 broker) 192.168.100.201 bjrenrui0002 (run 2

Introduced Kafka is a distributed, partitioned, replicable messaging system. It provides the functionality of a common messaging system, but has its own unique design. What does this unique design look like? Let's first look at a few basic messaging system terms: Kafka the message to topic as a unit.• The program that will release the message to Kafka topic be

Activemq installation and cluster configuration 1. Create a folder activemq/server Mkdir server 2. Authorization Chmod 777 server 3. Download The activeMQ installation package and copy it to the/activemq/server Directory. Apache-activemq-5.9.0-bin.tar.gz ,: Http://activemq

1. Create a new folder Activemq/servermkdir Server2. Authorizationchmod 777 Server3. Download the ACTIVEMQ installation package and copy it to the/activemq/server directoryApache-activemq-5.9.0-bin.tar.gz,:Http://activemq.apache.org/download.html4. Unzip the file to the running directory/

ACTIVEMQ is a message middleware that implements the JMS specification, providing both point-to-point and subscription-release modes. The following describes the use of ACTIVEMQ;First, the construction of the environmentFirst we need to download the ACTIVEMQ installation package, http://activemq.apache.org/activemq-510

Http://www.ibm.com/developerworks/cn/opensource/os-cn-kafka/index.html Message QueuingMessage Queuing technology is a technique for exchanging information among distributed applications. Message Queuing can reside in memory or on disk, and queues store messages until they are read by the application. With Message Queuing, applications can execute independently-they do not need to know each other's location, or wait for the receiving program to receive

In the real enterprise, the application of message communication has been very hot, and plays a special role in the enterprise application of the Java EE, so it is very necessary to study it.In brief, the basic concept of JMS (a) –JMS, we introduce the canonical JMS of message communication, we introduce an open source JMS concrete implementation--activemq. ACTIVEMQ is an easy-to-use message middleware.Mess

Recently there are projects that use Message Queuing, the best open source framework in the JMS specification is ACTIVEMQ, so choose it (of course, this is my boss's decision, like I just into the workplace of the little rookie to consider the problem is not comprehensive) as a message queue to transmit data, the company has a formed Message queue framework implementation, However, the framework of the company in the implementation of a good and compr

Original: http://blog.csdn.net/jiuqiyuliang/article/details/47160259In the real enterprise, the application of message communication has been very hot, and plays a special role in the enterprise application of the Java EE, so it is very necessary to study it.In brief, the basic concept of JMS (a) –JMS, we introduce the canonical JMS of message communication, we introduce an open source JMS concrete implementation--activemq.