Flow control method, device and system

Abstract

The invention relates to a flow control method, device and system, and the method comprises the steps: responding to a service access request for a to-be-accessed virtual storage region in a current period, determining a target preset storage region, corresponding to the to-be-accessed virtual storage region, in a storage cluster; determining a target single connection corresponding to the targetpreset storage region; sending the service access request to the storage cluster through the target single connection; receiving request processing abnormal state information fed back by the storage cluster through the target single connection; and based on at least one item of request processing abnormal state information fed back through the target single connection in the current period, adjusting the number of service access requests sent to the storage cluster through the target single connection. According to the invention, the flow can be adjusted in real time to avoid system function abnormality caused by instantaneous high flow, and the flow control granularity is small, so that the flow control accuracy is improved.

Description

technical field [0001] The present application relates to the technical field of the Internet, and in particular to a flow control method, device and system. Background technique [0002] The requests to be processed by the system are random and uncontrollable, and the processing capacity of the system is limited, so it is necessary to control the flow according to the processing capacity of the system. [0003] The flow control method commonly used in related technologies is to specify a QPS (Queries-per-second, query rate per second) threshold for a specific system service. When the request received by the system exceeds the QPS threshold, the service is refused or the request is added to the waiting queue at a constant speed. processing; some distributed systems also use independent traffic control modules to configure specific traffic thresholds for each client, and monitor the status of the server according to a certain period of time. When the traffic of the server is ...

AI Technical Summary

Problems solved by technology

[0003] The flow control method commonly used in related technologies is to specify a QPS (Queries-per-second, query rate per second) threshold for a specific system service. When the request received by the system exceeds the QPS threshold, the service is refused or the request is added to the waiting queue at a constant speed. processing; some distributed systems also use independent traffic control modules to configure specific traffic thresholds for each client, and monitor the status of the server according to a certain period of time. When the traffic of the server is too high or abnormal, update the client's The traffic threshold is used to suppress the client traffic until the server status returns to normal; the long process of the existing traffic control method leads to slow response speed, and it is difficult to solve the problem of high instantaneous traffic, and the traffic control module generally controls the entire On the client side, the flow control granularity is large, resulting in inaccurate flow control

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