China Unionpay Co., Ltd.

Chengrong Wu

Hongfeng Chai

Zhijun Lu

Jie Ping Wu

Jun Zhang

Hong Li

Jinzhi Hua

Dongjie He

Zhihui Lv

Zhenfang Wang

Jianping Zeng

Mingbo Wang

The application discloses a load evaluation system for virtual machines in a cloud environment, comprising: a monitored data collecting module which is configured to collect monitored data from one or more virtual machines in a cloud data center; a monitored data processing module which is coupled with the monitored data collecting module and is configured to: perform aggregated grouping on the monitored data by using a first KMeans algorithm for each of the one or more virtual machines, each group having a center point coordinate, and calculate a performance characteristic of each virtual machine of the one or more virtual machines according to the grouping and the center point coordinates of individual groups, i.e., a first characteristic value; perform aggregated grouping on the one or more virtual machines using a second KMeans algorithm based on the first characteristic value of each virtual machine, thus determining the characteristic type and performance load value of each virtual machine of the one or more virtual machines. The application also discloses a load evaluation method for virtual machines in a cloud environment as well as a service node.

System and method for load estimation of virtual machines in a cloud environment and serving node

The invention provides a compliance detecting method of payment applications in a virtualized environment, and pertains to the field of security technology of payment applications. The detecting method is used for compliance detection for PCI DSS isolation demands. The detecting method can determine whether it is a compliance state by analyzing the current virtual machine domain and its connection from data stream, and can also determine whether it is a compliance state by analyzing the purity of network flow of virtual machines. The detecting method is suitable for a virtualized environment and makes the detection of compliance accurate in the virtualized environment, thus being advantageous for guaranteeing the security of payment applications.

Method for checking compliance of payment application in virtualized environment

The present invention proposes a method for offline upgrading virtual machine mirror images. The method comprises: an mirror image security server collecting virtual machine mirror images, and extracting and storing the information of the collected virtual machine mirror images; and the mirror image security server executing an upgrade operation of virtual machine mirror images in an offline way based on the information of the collected virtual machine mirror images. The method for offline upgrading virtual machine mirror images disclosed in the present invention has higher upgrade efficiency and is capable of upgrading the virtual machine mirror images in an offline way.

Method for offline updating virtual machine images

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Shanghai, China

Chengrong Wu