Flow control method and system for NAS gateway of distributed file system

Abstract

The invention discloses a flow control method and system for an NAS gateway of a distributed file system. The method comprises the following steps: when detecting a flow request message to be receive, instead of directly receiving the flow request message, judging whether a current state of a receiving flag bit is a receivable state at first; only when the current state of the receiving flag bit is the receivable state, receiving the flow request message; otherwise, starting a timer and timing; and when the timing reaches a preset time threshold, returning to judge whether the current state of the receiving flag bit is the receivable state, so that the time of the time threshold can be reserved for processing the flow request messages which have been received, but are not processed. Therefore, the flow control method disclosed by the invention is used for effectively avoiding processing congestion, so as to locate the system in a stable and efficient working state.

Description

technical field [0001] The invention relates to the technical field of gateway flow control, in particular to a flow control method and system for a distributed file system NAS gateway. Background technique [0002] Today, it is not difficult to understand that the traffic control strategy is to avoid system congestion. Just like the traffic flow on the road, if there are too many vehicles on the same road section and there is a traffic jam, the traffic on the entire road section will not flow. In severe cases Even the entire traffic is paralyzed. [0003] However, the existing distributed file system NAS gateway does not implement flow control. All traffic request messages are received as much as they come, and the pressure will be concentrated on the NAS gateway. When the pressure of traffic request messages to be processed reaches saturation, the NAS gateway If the processing capacity of the server cannot keep up with the speed of traffic request messages, the backlog of...

AI Technical Summary

Problems solved by technology

[0003] However, the existing distributed file system NAS gateway does not implement flow control. All traffic request messages are received as much as they come, and the pressure will be concentrated on the NAS gateway. When the pressure of traffic request messages to be processed reaches saturation, the NAS gateway The processing capacity of the system cannot keep up with the speed of traffic request messages, and the backlog of traffic request messages will increase, and some traffic request messages will not be processed for a long time

Such processing blockage will easily cause the connection between the NAS gateway and the client to be disconnected, which will cause the system to malfunction and fail to work normally.

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