Method and system for expanding and contracting resource quantity of resource pool of PAAS platform

Abstract

The invention discloses a method and system for expanding and contracting the resource quantity of a resource pool of a PAAS platform. The method for expanding the resource quantity of the resource pool comprises the steps of counting the number of applying virtual machines in a first period, calculating a first applying speed, comparing the first applying speed and a predefined applying speed threshold value, counting the number of the applying virtual machines in a second period to calculate a second applying speed if the first applying speed is larger than the applying speed threshold value, comparing the first applying speed and the second applying speed, determining the larger one, and returning the period and the applying number of the virtual machines corresponding to the larger applying speed to be used as the expanding period and the expanding number of the virtual machines used for resource expanding. According to the method and system for expanding and contracting the resource quantity of the resource pool of the PAAS platform, the applying / returning speed of the virtual machines is calculated to compare the applying / returning speed, the resource quantity of the resource pool can be automatically expanded or contracted according to the actual using condition of the virtual machines, and therefore more effective utilization of the resource pool can be achieved.

Description

technical field [0001] The present invention relates to the field of cloud computing, and more specifically, to a method and a system for expanding and shrinking the resource quantity of a resource pool of a PAAS platform. Background technique [0002] PAAS (Platform-as-a-Service, Platform as a Service) platform is a business model that provides a server platform as a service. In the era of cloud computing, the corresponding server platform or development environment is provided as a service, which becomes PAAS. The platform service application mentioned in the present invention is an application that provides basic service capabilities based on the PaaS platform. [0003] The PAAS platform refers to the application infrastructure service in the cloud environment, and it can also be said to be middleware as a service. The PAAS platform is located in the middle layer of the cloud architecture, its upper layer is SAAS (Software as a Service), and its lower layer is IAAS (Inf...

AI Technical Summary

Problems solved by technology

[0005] However, the expansion and scaling of the resource pool of the current mainstream PAAS platform is mainly described by a fixed configuration, that is, the number of automatic expansion and automatic contraction is fixed, so that only a certain number of virtual machines can be created or a certain number of virtual machines can be deleted

Images