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Method and system for reducing website access time delay by using caches in fog computing architecture

A technology for website access and fog computing, applied in the field of fog computing, can solve the problems of increasing time delay, aggravating time delay, affecting user experience, etc., to reduce time delay, shorten distance, and improve user experience.

Active Publication Date: 2018-06-12
SHANDONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

By June 2017, the number of Internet users in China had reached 751 million. With the rapid increase in the number of Internet users, a large number of web service requests have caused heavy load pressure on web sites in cloud data centers, thereby increasing the time delay for users to obtain responses; at the same time , the transmission distance between the client and the cloud data center in the WAN is long, and there are many relays in gateway devices such as routers, which also aggravate the problem of time delay and affect the user experience

Method used

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  • Method and system for reducing website access time delay by using caches in fog computing architecture

Examples

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Embodiment 1

[0034] A method of using cache to improve website access delay in fog computing architecture, such as figure 2 As shown, the whole system is set up on the local area network, and the management end uses a host with centos6.5 operating system, 8-core CPU, 8GB memory, and 100MB / S bandwidth; the fog node cluster includes 6 hosts with centos6.5 operating system: three of them One 2G memory, 2 cores, 10MB / S bandwidth; the other three 1G memory, 2 cores, 100M / s bandwidth.

[0035] (1) Construction and testing process: Upload the redis source code installation package on the management side, use the make and make install commands to install the Redis database; install jdk 1.7, and configure the java program used by the management side to access the cache and execute the load balancing algorithm, install The jsch library is used to remotely obtain the utilization rate of various indicators of the fog node; the jedis library is installed to use the java program to operate the redis da...

Embodiment 2

[0052] A system that uses cache to improve network access delay in a fog computing architecture, such as figure 1 As shown, it includes the user terminal layer, the fog computing layer, and the cloud computing layer connected in sequence.

[0053] The user terminal layer includes multiple windows operating system hosts in the local area network; the fog computing layer includes multiple linux operating system hosts in the local area network; the cloud computing layer is the cloud data center in the wide area network.

[0054] The fog computing layer includes management nodes and fog nodes. The management nodes and fog nodes are connected to several switches in the local area network, and the upper layers of several switches are connected to routers. The control node is used to store the metadata of cached resources, intercept the http access request of the LAN, and judge whether the resource has been cached in the fog node cluster, and select the fog node with the least load a...

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Abstract

The invention relates to a method and system for reducing website access time delay by using caches in fog computing architecture. On the premise of not influencing normal running of a cloud data center website, fog nodes are used for caching static resources in a local area network to reduce the time delay of user access and improve the user experience. In the method and system, hot resources with the request quantity exceeding a threshold value set by the system are subjected to multi-copy caching in multiple fog nodes; when the resources need to be read, the most suitable fog node is selected to provide services according to the load balancing algorithm; cache management nodes are set to conduct record management on meta information of system cache resources.

Description

technical field [0001] The invention relates to a method and system for improving website access delay by using a cache in a fog computing framework, and belongs to the technical field of fog computing. Background technique [0002] In 2011, CISCO proposed the concept of fog computing. The core idea is to make full use of the storage and computing capabilities of devices near the edge of the network between cloud computing and user terminal devices to provide computing and storage services for end users. Fog computing has the characteristics of being close to the edge of the network, so it can effectively shorten the transmission distance and reduce time delay; and it can reduce the pressure on the cloud data center in the wide area network. [0003] The cache was first used to alleviate the mismatch between the speed of the computer's central processing unit and the input and output devices. The computer controls the pre-reading of the data required by the central processin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08
CPCH04L67/02H04L67/1008H04L67/568
Inventor 袁东风赵晟伟
Owner SHANDONG UNIV
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