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Policy based service load balancing method

A load balancing and policy technology, applied in two-way working systems, selective content distribution, electrical components, etc., can solve the problems of not being able to know the server difference, not being able to know the current status of the server, not being able to guide users to access, etc., and achieve low cost , the effect of uniform load distribution

Inactive Publication Date: 2008-02-06
ZTE CORP
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Problems solved by technology

[0003] At present, there is a DNS load balancing method to solve the above problems. This method is to obtain multiple IP addresses when resolving the same domain name, that is, corresponding to multiple servers. It distributes the request for the same domain name to multiple servers with independent IP addresses. Address server, this method is simple and easy to implement, but its disadvantages are also obvious. It cannot know the difference between servers, nor can it understand the current status of the server, and it cannot guide user access to the device with the current lighter load. And require the operator to apply for a domain name

Method used

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  • Policy based service load balancing method

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Embodiment Construction

[0031] Below in conjunction with accompanying drawing, the present invention will be described in further detail:

[0032] Main points of the present invention are:

[0033] The master control process maintains a device performance table.

[0034] The master control process maintains a channel list.

[0035] The master control process maintains a session information table.

[0036] The strategy of dynamically selecting the optimal device is to calculate the performance value of the device by comprehensively considering the number of users currently being served by the device, the CPU usage rate of the device and other information. For content on demand, traverse the device performance table to filter out unavailable devices, and the remaining available device with the smallest performance value is the optimal device; for channel on demand, it is necessary to parse out the channel ID according to the RTSP request, and then traverse the channel table to calculate The performa...

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Abstract

The invention discloses a server load balance method based on the strategy, solving the problem that the prior content transport network is incapable of knowing the differences of servers, learning the current statuses of the servers, and leading the customer to the equipment which has a lighter load. The server load balance method based on the strategy includes the steps as follows: (1) the turn process records the load condition of each server; (2) when the customer demands to the service, the invention chooses the server which has the lightest load serving for the customer. The present invention provides a high efficiency load balance method and has a low cost, making the whole loads in the node are distributed uniformly, achieving a real load balance.

Description

technical field [0001] The invention relates to a content delivery network (CDN), in particular to a policy-based service load balancing method. Background technique [0002] The content delivery network CDN is to optimize the distribution of content in the network, so that the most popular content is distributed in the edge node closest to the user. When a user requests content, the global redirector gives priority to using the node closest to the user and having content to serve the user. Generally, a node must be able to support thousands of users. In addition to providing video services for users, the streaming media server also undertakes many tasks such as content pull-down, uploading, recording and broadcasting, etc., which puts high demands on the service capabilities of the streaming media server. , so in order to solve this problem, consider using multiple streaming servers to serve users, that is, distributing user access to multiple servers, which not only incre...

Claims

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Application Information

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IPC IPC(8): H04L29/00H04N7/173H04N21/25
Inventor 印和平王印龙郭亮胡捷
Owner ZTE CORP
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