云计算PaaS平台下拓扑展示的实现

In order to monitor applications in cloud computing PaaS platform, the concept of topology management was brought up. In one hand, the application topology can monitor the relationship between applications and resources, in another hand, resource topology can monitor the relationship between resources and applications, Both of them can realize monitoring of applications from different angles. We use a hash array to store topology information, and the message bus publish -subscribe model to pass the messages. After that, we can achieve the topology information, and then demonstrate the results in web pages.