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A method and device for determining whether to initiate a backup request

A technology for user equipment and sending requests, applied in the distributed field, can solve the problem that the final income of backup requests is difficult to achieve the ideal state, and achieve the effect of improving the overall performance

Active Publication Date: 2019-10-11
BEIJING BAIDU NETCOM SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing configuration method using unified fixed parameters makes it difficult to achieve the ideal state for the final income of backup requests

Method used

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  • A method and device for determining whether to initiate a backup request
  • A method and device for determining whether to initiate a backup request
  • A method and device for determining whether to initiate a backup request

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Embodiment Construction

[0020] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0021] figure 1 It shows a user equipment 1 for determining whether to initiate a backup request according to one aspect of the present invention, wherein the user equipment 1 includes a device for determining an RTO value according to a predetermined rule, so that the user equipment 1 determines whether to initiate a backup The requesting device (hereinafter referred to as "the first determining device 11"). specifically. The first determining means 11 determines the RTO value according to a predetermined rule, wherein the RTO value is used as a new expected response time of the next request for determining whether to initiate a backup request, wherein the predetermined rule includes at least any of the following 1) If the request sent by the user equipment to the corresponding first network device is successfully responded, update the SRTT value and the R...

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Abstract

The purpose of the present invention is to provide a method and device for determining whether to initiate a backup request. Specifically, the RTO value is determined according to a predetermined rule, wherein the RTO value is used as a new expected response time of the next request to determine whether to initiate a backup request; wherein the predetermined rule includes at least any of the following: - If the user equipment sends Corresponding to the request sent by the first network device being successfully responded, the SRTT value and the RTTVAR value are updated according to the actual response time corresponding to the request to obtain the first SRTT value and the first RTTVAR value, and according to the first SRTT value and the first RTTVAR value The value determines the RTO value; if the user equipment sends a request to the corresponding first network device and does not receive a response for longer than the expected response time, determine the RTO value according to the expected response time. Compared with the prior art, the present invention achieves the following beneficial effects: dynamic calculation of RTO value, self-adaptive backup request, and improved overall system performance.

Description

technical field [0001] The invention relates to the field of distributed technology, in particular to a technology for determining whether to initiate a backup request. Background technique [0002] In distributed systems, especially online real-time systems, delay and long tail are important indicators to measure the quality of the system. The backup request (also known as tie request) mechanism is an effective solution to reduce latency and long tail. Its core idea is: after the client initiates a request to the server, if it does not receive a response within a certain period of time, it initiates the same request to another server (called a backup request). In this way, the client will subsequently accept the successful response returned by any server first, and cancel the request on the other server. [0003] The key to the backup request mechanism is when to initiate the backup request. In the existing implementation schemes, most of them adopt the method of configu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/08
CPCH04L67/1095H04L67/62H04L67/60
Inventor 赵文洪韵棋
Owner BEIJING BAIDU NETCOM SCI & TECH CO LTD
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