CN105553874A - Flow control method and system for NAS gateway of distributed file system - Google Patents

Abstract

The invention discloses a flow control method and system of a distributed file system NAS gateway. The method includes: when detecting a flow request message to be received, instead of directly receiving the flow request message, first judging the receiving flag bit Whether the current state of the receiving flag is receivable; only when the current state of the receiving flag is receivable, the traffic request message is received; otherwise, the timer is started and counted; when the timing reaches the preset time threshold, the judgment reception flag is returned Whether the current state of the bit is acceptable, so that the above-mentioned time threshold can be set aside to process those traffic request messages that have been received but not yet processed. It can be seen that the present invention effectively achieves the purpose of avoiding processing blockage, and then making the system work in a stable and efficient state.

Description

A flow control method and system for a distributed file system NAS gateway

technical field

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

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.

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 capability of the server cannot keep up with the speed of traffic request messages, 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.

Therefore, there is an urgent need for a new flow control method for distributed file system NAS gateways, so as to avoid processing blockages and make the system in a stable and efficient working state.

Contents of the invention

In view of this, the present invention provides a flow control method and system for a distributed file system NAS gateway, so as to avoid processing blockage and make the system in a stable and efficient working state.

In order to solve the above-mentioned technical problems, the present invention provides a flow control method of a distributed file system NAS gateway, the method comprising:

When the traffic request message to be received is detected, it is judged whether the current state of the receiving flag bit is an acceptable state;

When it is determined that the current state of the receiving flag bit is an acceptable state, receiving the traffic request message;

When it is determined that the current state of the receiving flag bit is an unacceptable state, start a timer and perform timing;

When the timing reaches the preset time threshold, return to determine whether the current state of the receiving flag bit is a receivable state.

In the above method, preferably, before the judging whether the current state of the receiving flag bit is an acceptable state, it also includes:

Determine the number of current request message return queues;

When the number of the request message return queue is greater than or equal to the preset number upper limit value, determine that the current state of the receiving flag bit is an unacceptable state;

When the data in the request message return queue is less than the upper limit value, it is determined that the current state of the receiving flag bit is an acceptable state.

In the above method, preferably, after determining the number of current request message return queues, it further includes:

Obtain the preset upper limit value of the quantity.

In the above method, preferably, after receiving the traffic request message, further comprising:

Complete the processing operation corresponding to the traffic request message.

The present invention also provides a flow control system of a distributed file system NAS gateway, the system comprising:

The state judging unit is used for judging whether the current state of the receiving flag bit is an acceptable state when detecting a traffic request message to be received; when the timing reaches a preset time threshold, judging whether the current state of the receiving flag bit is receivable status;

A message receiving unit, configured to receive the flow request message when it is determined that the current state of the receiving flag bit is an acceptable state;

The timer starting unit is configured to start the timer and perform timing when it is determined that the current state of the receiving flag bit is unreceivable.

In the above system, preferably, it also includes:

A state determination unit, configured to determine the current number of request message return queues before the judgment of whether the current state of the receiving flag is an acceptable state; when the number of request message return queues is greater than or equal to the preset upper limit value, it is determined that the current state of the receiving flag bit is an unacceptable state; when the data of the request message return queue is less than the upper limit value, it is determined that the current state of the receiving flag bit is an acceptable state.

In the above system, preferably, it also includes:

The obtaining unit is configured to obtain the preset upper limit value of the number after the determination of the current number of request message return queues.

In the above system, preferably, it also includes:

A processing unit, configured to complete a processing operation corresponding to the traffic request message after the traffic request message is received.

In the flow control method and system of a distributed file system NAS gateway provided by the present invention, when a flow request message to be received is detected, the flow request message is not directly received, but the current state of the receiving flag bit is judged first. Whether the state is receivable; only when the current state of the receiving flag bit is receivable, the flow request message is received; otherwise, the timer is started and timed; when the timing reaches the preset time threshold, the judgment is returned Whether the current state of the receiving flag bit is receivable, so that the above-mentioned time threshold can be set aside to process those traffic request messages that have been received but not yet processed. It can be seen that the present invention effectively achieves the purpose of avoiding processing blockage, and then making the system work in a stable and efficient state.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only It is an embodiment of the present invention, and those skilled in the art can also obtain other drawings according to the provided drawings without creative work.

FIG. 1 is a flow chart of a flow control method of a distributed file system NAS gateway provided by an embodiment of the present invention;

FIG. 2 is a schematic structural block diagram of a flow control system of a distributed file system NAS gateway provided by an embodiment of the present invention.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

The core of the present invention is to provide a flow control method and system of a distributed file system NAS gateway, so as to avoid processing blockage and make the system in a stable and efficient working state.

In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Referring to FIG. 1, FIG. 1 shows a flow chart of a flow control method for a distributed file system NAS gateway provided by an embodiment of the present invention. The method may specifically include the following steps:

Step S100 , when a flow request message to be received is detected, judge whether the current status of the receiving flag is receivable; if yes, go to step S101 ; otherwise, go to step S102 .

In the present invention, it is determined whether the flow request message from the client can continue to be received according to the flow request message currently processed by the system. Specifically, a receiving flag bit is introduced to represent whether the flow request message can continue to be received currently. The receiving flag bit has two There are two states, one is acceptable state and the other is unacceptable state. When detecting the traffic request message to be received, instead of directly receiving the traffic request message, it is first judged whether the current state of the receiving flag is acceptable; only when the current state of the receiving flag is acceptable, the Receive traffic request messages.

Further, in the present invention, it is judged whether the system can continue to receive and process subsequent traffic request messages according to the number of current request message return queues in the system. Specifically, technicians can return the number of request message queues according to the actual situation. Set a quantity upper limit value.

Specifically, the setting of the state of the receiving flag can be realized through the following content: After the system obtains the above-mentioned preset upper limit value and determines the number of the current request message return queue, compare the numerical value of the two data , when the number of request messages returned to the queue is greater than or equal to the preset number upper limit, it is considered that the system does not have enough capacity to process other subsequent traffic request messages at this time, and then the current state of the receiving flag is determined to be unacceptable; When the data of the request message return queue is less than the upper limit value, it is considered that the system has sufficient capacity to process other subsequent traffic request messages at this time, and the current state of the receiving flag bit is determined to be an acceptable state.

Therefore, it can be understood that, when it is determined that the current state of the receiving flag is an acceptable state, step S101 is performed to directly receive the detected flow request message to be received, and complete the processing operation corresponding to the flow request message; When the current status of the receiving flag is unacceptable, go to step S102.

Step S101, receiving a traffic request message.

Step S102, start the timer and count the time, and go to step S103.

Step S103, determine whether the timing has reached the preset time threshold, if so, return to step S100 and continue to determine whether the current state of the receiving flag is an acceptable state; otherwise, continue to determine whether the timing has reached the above-mentioned time threshold.

When the traffic request message to be received is detected and the current state of the receiving flag is unacceptable, start the timer and count; when the timing reaches the preset time threshold, return to step S100 to determine whether the current state of the receiving flag is Acceptable status, and cycle like this. In a specific implementation process, the specific value of the time threshold can be specifically set by those skilled in the art as the case may be, and is not strictly limited in the present invention.

It can be understood that, during each timer counting process, the above-mentioned time threshold may be set aside to process those traffic request messages that have been received but not yet processed. If within this period of time, the system has processed enough traffic request messages, then when the timing reaches the preset time threshold and returns to step S100 to determine whether the current state of the receiving flag is an acceptable state, the receiving flag may have changed to becomes a receivable state, at this time, the currently detected traffic request message to be received can be directly received.

It can be seen that the present invention effectively achieves the purpose of avoiding processing blockage, and then making the system work in a stable and efficient state.

Based on the flow control method of the distributed file system NAS gateway provided by the above-mentioned embodiment of the present invention, the embodiment of the present invention also provides a flow control system of the distributed file system NAS gateway. Referring to FIG. 2, the system 200 may include the following contents :

The state judging unit 201 is used for judging whether the current state of the receiving flag bit is an acceptable state when a traffic request message to be received is detected; when the timing reaches a preset time threshold, judging whether the current state of the receiving flag bit is acceptable receiving status;

A message receiving unit 202, configured to receive a flow request message when it is determined that the current state of the receiving flag is an acceptable state;

The timer starting unit 203 is configured to start a timer and perform timing when it is determined that the current state of the receiving flag is unreceivable.

In the present invention, the above-mentioned system 200 may specifically include a state determination unit, which is used to determine the number of current request message return queues before judging whether the current state of the receiving flag is an acceptable state; when the number of request message return queues is greater than Or when it is equal to the preset upper limit value, determine that the current state of the receiving flag bit is an unacceptable state; when the data in the request message return queue is less than the upper limit value, determine that the current state of the receiving flag bit is an acceptable state.

In the present invention, the above-mentioned system 200 may specifically include an acquiring unit, configured to acquire a preset upper limit value of the number after determining the current number of request messages returned to the queue.

In the present invention, the above-mentioned system 200 may specifically further include a processing unit configured to complete the processing operation corresponding to the traffic request message after receiving the traffic request message.

It should be noted that each embodiment in this specification is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. For the same and similar parts in each embodiment, refer to each other, that is, Can. As for the system embodiment, because it is basically similar to the method embodiment, the description is relatively simple, and for related parts, please refer to the part of the description of the method embodiment.

The flow control method and system of a distributed file system NAS gateway provided by the present invention have been introduced in detail above. In this paper, specific examples are used to illustrate the principle and implementation of the present invention, and the descriptions of the above embodiments are only used to help understand the method and core idea of the present invention. It should be pointed out that for those skilled in the art, without departing from the principle of the present invention, some improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims (8)

1. a flow control method of distributed file system NAS gateway, it is characterized in that, the method comprises: When the traffic request message to be received is detected, it is judged whether the current state of the receiving flag bit is an acceptable state; When it is determined that the current state of the receiving flag bit is an acceptable state, receiving the traffic request message; When it is determined that the current state of the receiving flag bit is an unreceivable state, start a timer and perform timing; When the timing reaches the preset time threshold, return to determine whether the current state of the receiving flag bit is a receivable state. 2. The method according to claim 1, further comprising: Determine the number of current request message return queues; When the number of the request message return queue is greater than or equal to the preset number upper limit value, determine that the current state of the receiving flag bit is an unacceptable state; When the data in the request message return queue is less than the upper limit value, it is determined that the current state of the receiving flag bit is an acceptable state. 3. The method according to claim 2, further comprising: Obtain the preset upper limit value of the quantity. 4. The method according to any one of claims 1 to 3, further comprising: after receiving the traffic request message, Complete the processing operation corresponding to the traffic request message. 5. a flow control system of a distributed file system NAS gateway, characterized in that the system comprises: The state judging unit is used for judging whether the current state of the receiving flag bit is an acceptable state when detecting a traffic request message to be received; when the timing reaches a preset time threshold, judging whether the current state of the receiving flag bit is receivable status; A message receiving unit, configured to receive the flow request message when it is determined that the current state of the receiving flag bit is an acceptable state; The timer starting unit is configured to start the timer and perform timing when it is determined that the current state of the receiving flag bit is unreceivable. 6. The system of claim 5, further comprising: A state determination unit, configured to determine the current number of request message return queues before the judgment of whether the current state of the receiving flag is an acceptable state; when the number of request message return queues is greater than or equal to the preset upper limit value, it is determined that the current state of the receiving flag bit is an unacceptable state; when the data of the request message return queue is less than the upper limit value, it is determined that the current state of the receiving flag bit is an acceptable state. 7. The system of claim 6, further comprising: The obtaining unit is configured to obtain the preset upper limit value of the number after the determination of the current number of request message return queues. 8. The system according to any one of claims 5 to 7, further comprising: A processing unit, configured to complete a processing operation corresponding to the traffic request message after the traffic request message is received.