apache kafka教程

Why we built this Kafka is a messaging system that was originally developed at LinkedIn to serve as the foundation for LinkedIn's activity stream and operational data processing pipeline. It is now used at a variety of different companies for various data pipeline and messaging uses. Activity stream data is a normal part of any website for reporting on usage of the site. Activity data is things like page views, information about what content was shown, searches, etc. This kind of thing is usually handled by logging the activity out to some kind of file and then periodically aggregating these files for analysis. Operational data is data about the performance of servers (CPU, IO usage, request times, service logs, etc) and a variety of different approaches to aggregating operational data are used. In recent years, activity and operational data has become a critical part of the production features of