Data center short flow acceleration method and system based on redundancy technology

Abstract

The invention discloses a data center short flow acceleration method and system based on redundancy technology. The method includes the steps of periodically running a redundant flow quantity allocation module, and allocating the redundant flow quantity for the short flow of the application program, and avoiding the path collision through the method The step of obtaining the set of source port numbers with non-overlapping paths to create the original flow and the corresponding number of redundant flows; the system includes a redundant flow number allocation module responsible for selecting the number of redundant flows, responsible for avoiding occurrences between the original flow and the redundant flow The path collision avoidance module with overlapping paths, the database, and the call interface used to provide the application with establishing TCP flow, and call the path collision avoidance module according to the number of redundant flows to obtain a set of source port numbers with non-overlapping paths to create the original flow and the corresponding Number of master modules for redundant streams. It avoids path overlap between the original flow and the redundant flow; and allocates different numbers of redundant flows to short flows of different sizes. The equal-cost path utilization is reasonable, and it is more efficient, easy to deploy, and low in load.

Description

technical field [0001] The invention relates to a method and system for accelerating short flows in a data center, in particular to a method and system for accelerating short flows in a data center based on redundancy technology. Background technique [0002] In the data center, the tasks of real-time applications are mostly composed of short flows, and the completion speed of these short flows has an important impact on user experience. Using redundancy technology to reduce the completion time of short streams is a potential method. The specific method is to create a stream (redundant stream) carrying the same content for each short stream (original stream), and the application uses the first completed stream. result of the flow. Ideally, this technique can take advantage of equal-cost paths in the data center to speed up the completion of short flows. However, due to the use of equal-cost multi-path protocols in data centers, the redundant flow and the original flow are ...

AI Technical Summary

Problems solved by technology

However, due to the use of equal-cost multi-path protocols in data centers, the redundant flow and the original flow are likely to be routed to the same path, which leads to a very limited effect of the redundancy technique on accelerating short flows

In addition, creating a redundant flow for each short flow does not effectively utilize multiple equal-cost paths in the data center

In the existing technology, there are problems such as the path collision between the redundant flow and the original flow, and the inability to fully utilize the equivalent path, which brings about a large performance loss. These problems need to be solved urgently

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