Method and device for selecting cache replacement strategy, proxy server and system

Abstract

The embodiment of the invention provides a method and device for selecting a cache replacement strategy, a proxy server and a system, which can reduce artificial participation and automatically switches the cache replacement strategy. The method comprises the following steps: obtaining the statistical data of a plurality of cache replacement strategies simultaneously operated; according to the cache replacement strategies, deciding a decision event and the statistical data; and switching the main cache replacement strategy into the cache replacement strategy satisfying a decision requirement. The cache replacement strategies provided by the embodiment of the invention are automatically switched to lower technical requirements on management personnel; in addition, when a proxy cache operates, a cache replacement strategy which is suitable for the current scene and most conforms to the expectation of user performance can be automatically selected; and the cache replacement strategy has good adaptability. Compared with the scheme in the prior art that only one cache replacement strategy is used throughout, the method and the device can further improve the performance of the proxy cache.

Description

technical field [0001] The invention relates to the communication field, in particular to a selection method, device, proxy server and system of a cache replacement strategy. Background technique [0002] With the rapid development of the Internet (Internet), more and more people obtain rich information resources through the Internet. However, the sharp increase in the number of users will inevitably bring about problems such as increased load on the web server, increased response delay from the client, and congestion on the backbone network. Especially in recent years, Internet streaming media applications such as video-on-demand, distance education and e-commerce have become increasingly widespread, making these problems more serious. [0003] The traditional way to solve these problems is to continuously upgrade the network server and increase the network access bandwidth. However, this traditional method cannot fundamentally solve the problem, because, usually, the upg...

AI Technical Summary

Problems solved by technology

Once Squid Cache is running, it cannot be changed; once changed, Squid Cache needs to be restarted for the new configuration to take effect

The defect of Squid Cache is that the selection and update of the cache replacement strategy requires human judgment, selection and update by the administrator, that is, which algorithm to choose requires the administrator to have a clear understanding of various factors such as the current user access model and application , It also requires the administrator to know which cache replacement strategy is suitable for the current scenario, which is too demanding for the administrator; on the other hand, when the scenario changes, for example, when the user access model changes or the application changes, Squid Cache doesn't fit well

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