apache kafka online course

650) this.width=650; "Src=" http://dl2.iteye.com/upload/attachment/0117/7226/ E9d40ea7-3982-3e47-8856-51eae85c41b3.jpg "title=" click to view original size picture "class=" Magplus "width=" "height=" 131 "style=" border : 0px;float:left; "/>Apache Top Project Introduction Series-1, we start with Kafka. Why Popular + name Cool.Kafka official website is a relatively simple, direct visit to the site, "

Apache Kafka recently launched version 0.11. This is a major milestone version, especially Kafka from this release to support the "Exactly-once" semantics (hereinafter called EOS, Exactly-once semantics). This article briefly describes the major functional changes in the 0.11 release, each of which deserves a special article for a good chat.First, modify the uncl

groups. 2. Why do we need Kafka? Data typically includes user activity, event logins, page access, clicks, social networking activities such as like, share, and comment, actionsand system metrics (due to high throughput (millions of messages per second), typically handled by logging Legacy Log Aggregation solutions-for offline analysis Eg.hadoop)Very limited to building real-time processing systems. Real-time analysis includes:① based on search-rela

650) this.width=650; "src=" Http://storm.apache.org/images/logo.png "class=" logo "alt=" logo.png "/>Storm provides a common set of primitives for distributed real-time computing that can be used in "streaming" to process messages and update databases in real time. This is another way to manage queues and worker clusters. Storm can also be used for "continuous computing" (continuous computation), which makes continuous queries on the data stream, and outputs the results as streams to the user at

Apache to play, so two ports can ensure that two servers can be normal use (because the default port after installation is 80), the other servers are similar, the deeper meaning, I also say, we are interested to communicate with each other, Can give me Baidu account message Ah!2.IIS Publish directory changes very simple right-click on "My Computer" "manage" services and applications "Internet Information Services" Web site "Properties" in "Home Direc