JP2004164253A - Queue controller and registration suppression method used therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a queue controller which improves terminal operability in time of congestion of transaction processing to improve operating efficiency of a terminal operator. <P>SOLUTION: A queue registration means 123 confirms a queue limit length notified from a queue registration condition decision means 122, and acquires the number of telegrams remaining in queues 125-1 to 125-n, i.e., a queue length. When the queue length is smaller than the queue limit length, the queue registration means 123 puts the telegrams into the queues 125-1 to 125-n. When the queue length is not smaller, the queue registration means 123 does not put the telegrams into the queues 125-1 to 125-n, and calls an execution impossibility notification generation means 124 to notify a terminal device 2 of the effect that a transaction is not executed. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a queue control device and a registration suppression method used therefor, and more particularly to a queue control method used for transaction processing.
[0002]
[Prior art]
Conventionally, as a queue control method, there is a method in which attention is paid only to the number of messages staying in a queue, and control is performed to suppress entry into the queue when the number exceeds a value set in advance (for example, And Patent Document 1).
[0003]
In the case of this method, when the computer constituting the online system receives data from the terminal, it detects the processing queue length of the corresponding data processing, and when the data is longer than the preset queue length, the received data is queued. Without registration, the terminal operator is notified of the fact that the data processing is not to be performed because the waiting time for the processing becomes large.
[0004]
In addition, as another queue control method, without entering the queue, the queue is first entered, and then the waiting time is monitored for each message, so that the waiting time can be reduced. There is a method of suspending waiting for a message that has reached a limit (for example, see Patent Document 2).
[0005]
In the case of this method, the transactions held in the queue of the transaction processing device are individually monitored, and the elapsed time from the start of the hold is monitored, and when the transaction reaches a preset hold limit time. The event is reported to the terminal to suppress the transition.
[0006]
Further, as another queue control method, there is a method of performing suppression control based on statistical information of a CPU (Central Processing Unit) (for example, see Patent Document 2). In the case of this method, the transaction amount automatic control unit counts the transactions input from the transaction input / output unit as the number of in-system stale transactions before allocating the transactions to the online business processing, and periodically updates the CPU utilization monitoring unit. The CPU utilization notified from the server exceeds the risk value of the preset CPU utilization, and the number of transactions staying in the system per unit time tends to increase, and it is determined that the CPU utilization becomes 100% at the next processing. At this time, the transaction input / output unit is instructed to restrict input of a new transaction.
[0007]
[Patent Document 1]
JP-A-5-233547 (pages 2, 3; FIG. 1)
[Patent Document 2]
JP-A-2000-222357 (pages 3 and 4, FIG. 1)
[Patent Document 3]
JP-A-6-266669 (pages 2, 3; FIG. 1)
[0008]
[Problems to be solved by the invention]
However, in the conventional queuing control method described above, in the case of the above-mentioned Patent Document 1, the time until a message in the queue is executed and a response is returned does not depend only on the queue length. There is a problem that it is difficult to guarantee the response time in the suppression control by the head. For example, when the entire transaction system is in a load state and when it is not, the response time differs even with the same queue length, and the same applies when the execution multiplicity increases or decreases due to a failure or the like. I can say that.
[0009]
Further, in the case of Patent Document 2 described above, although the upper limit of the waiting time is guaranteed, there is a possibility that repeated execution will not be performed after waiting, which is preferable in terms of work efficiency and mental health of the terminal operator. There is no problem.
[0010]
Further, in the case of the above-mentioned Patent Document 3, since the CPU utilization of a transaction is focused on and is suppressed when it exceeds a certain level, the execution multiplicity is small and the CPU utilization does not increase. In the case where the CPU is not used but the response waiting time from the DB (database) server is long, the suppression cannot be performed. Therefore, the suppression control is performed when the execution multiplicity is small or when the DB server is another server. There's a problem.
[0011]
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to solve the above-mentioned problems, improve the terminal operability when transaction processing is congested, and improve the work efficiency of a terminal operator, and a registration suppression method used therefor. Is to provide.
[0012]
[Means for Solving the Problems]
A queuing control device according to the present invention is a queuing control device that registers a request in a queue to receive and execute a request from a terminal device,
Determining means for predicting in advance whether or not the time from the reception of the request to returning the response exceeds a predetermined allowable range on the user side, and when the determining means predicts in advance that the time exceeds the allowable range. A registration unit for inhibiting execution of the request in the queue; and a notifying unit for notifying the terminal device that the execution of the request in the queue is inhibited.
[0013]
A registration suppression method according to the present invention is a registration suppression method for a queue control device that registers a request in a queue to accept and execute a request from a terminal device,
A first step of predicting in advance whether the time from receiving the request until returning a response exceeds a preset allowable range on the user side; And a third step of notifying the terminal device that the execution of the registration of the request in the queue has been suppressed.
[0014]
That is, in the online transaction processing system, the queuing control device of the present invention, when it is expected that the time from receiving a request from a terminal to returning a response is expected to exceed the allowable range on the user side, the queue control device The present invention provides a device that suppresses the execution of registration of a terminal and immediately notifies the terminal of the fact.
[0015]
More specifically, in the queue control device of the present invention, the average processing time information per transaction in the execution unit and the multiplicity of the execution unit are registered in the operation information table, and the user waits in the operation definition file. The time at which the queue can be used is registered in advance, and the queue registration condition determination means determines the upper limit of the queue length for entering the queue based on the information. The queue registration means inhibits the execution of the registration in the queue when it detects that the queue length is larger than the upper limit.
[0016]
As a result, the queuing control device of the present invention enables suppression control by predicting the response time in advance, improves terminal operability when transaction processing is congested, and improves terminal operator work efficiency. Become.
[0017]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing the configuration of an online transaction processing system according to one embodiment of the present invention. FIG. 1 shows an example of an online transaction processing system to which a queue control device according to an embodiment of the present invention is applied.
[0018]
The online transaction processing system 1 includes a communication device 11 that communicates with the terminal device 2, a queue control device 12 that performs processing from analysis of a received message to entry into an execution queue, and a transaction processing device 13 that executes a transaction. , An operation definition file 14, and an operation information table 15.
The communication device 11 includes a receiving unit 111 and a transmitting unit 112, and performs reception of a message from the terminal device 2 and transmission of a message to the terminal device 2, respectively.
[0019]
The queue control device 12 includes a received message analysis unit 121, a queue registration condition determination unit 122, a queue registration unit 123, an execution impossible notification creation unit 124, and queues 125-1 to 125-n. These means operate roughly as follows.
[0020]
The received message analysis unit 121 analyzes the received message and specifies the transaction execution units 131-1 to 131-n to be called as necessary. The queue registration condition judging unit 122 enters the queues 125-1 to 125-n from the information from the received message analyzing unit 121, the information recorded in the operation definition file 14, and the information recorded in the operation information table 15. Calculate the queue limit length to determine whether to send a message.
[0021]
The queue registration unit 123 confirms the queue length prior to the entry into the queues 125-1 to 125-n, and if the length is smaller than the queue limit length notified from the queue registration condition determination unit 122. For example, it submits to the queues 125-1 to 125-n, otherwise calls the execution-impossible-notification creating means 124 without submitting. The execution-impossible-notification creating unit 124 creates a message indicating that execution has been suppressed, and calls the transmitting unit 112.
[0022]
The transaction processing device 13 includes transaction execution means 131-1 to 131-n, and fetches a message from the queues 125-1 to 125-n and executes the message.
[0023]
The operation definition file 14 is a file storing information for a user to customize the operation of the transaction processing system, and is characterized in that the operation definition file 14 includes a queue upper limit 141 in this embodiment.
[0024]
The operation information table 15 is a table which appropriately reflects the operation information of the transaction execution units 131-1 to 131-n. In the present embodiment, the multiplicity 151 of the transaction execution units 131-1 to 131-n and the number of transactions It is characterized by including the average processing time information 152.
[0025]
2 and 3 are flowcharts showing the operation of the queue control device 12 according to one embodiment of the present invention. The operation of the queue control device 12 according to one embodiment of the present invention will be described with reference to FIGS. FIG. 2 shows a detailed operation of the queue registration condition determining means 122, and FIG. 3 shows a detailed operation of the queue registration means 123.
[0026]
First, the received message analyzer 121 verifies the validity of the message received from the terminal device 2 by the receiver 111. When the queues 125-1 to 125-n and the transaction execution units 131-1 to 131-n are divided into two or more according to the characteristics of the business or the like, the queue 125- to be put in from the message content is used. Make a determination of 1-125-n. As a result of the analysis, if there is a problem, a response to the terminal device 2 is created and transmitted by the non-executable notice creating unit 124.
[0027]
The queue registration condition determining means 122 first takes in the upper limit 141 of the waiting time from the operation definition file 14 defined by the user, and sets the upper limit 141 of the waiting time to W1 (step S1 in FIG. 2).
[0028]
Next, the queue registration condition judging means 122 fetches the multiplicity 151 of the transaction executing means 131-1 to 131-n from the operation information table 15, and sets the multiplicity 151 to M1 (step S2 in FIG. 2).
[0029]
Similarly to the above, the queue registration condition determining means 122 fetches the average processing time information 152 in which the transaction execution means 131-1 to 131-n records the time required for processing one transaction from the operation information table 15, and The average processing time information 152 is set to T1 (step S3 in FIG. 2).
[0030]
The queue registration condition determination means 122 calculates a queue limit length [= W1 / (T1 / M1)] based on the above information (step S4 in FIG. 2), and notifies the queue registration means 123 together with the received message. (Step S5 in FIG. 2).
[0031]
The queue registration unit 123 first checks the queue limit length notified from the queue registration condition determination unit 122, and sets the queue limit length to QL (step S11 in FIG. 3).
[0032]
Next, the queue registration unit 123 acquires the number of messages staying in the queues 125-1 to 125-n, that is, the queue length, and sets the queue length to Q1 (step S12 in FIG. 3).
[0033]
Here, if the queue length Q1 is smaller than the queue limit length QL (Q1 <QL) (step S13 in FIG. 3), a message is input to the queues 125-1 to 125-n (step S14 in FIG. 3). Otherwise (step S13 in FIG. 3), the non-executable-notification creating unit 124 is called without entering the queues 125-1 to 125-n (step S15 in FIG. 3), and the transaction is transmitted to the terminal device 2. Notify that it was not executed.
[0034]
The execution-impossible-notification creating unit 124 receives the notification from the received-message analyzing unit 121 and the queue registering unit 123, creates a notification message indicating that the transaction was not executed to the terminal device 2, The event is notified to the device 2.
[0035]
FIG. 4 is a block diagram showing a specific example of the online transaction processing system 1 according to one embodiment of the present invention. The operation of the online transaction processing system 1 according to one embodiment of the present invention will be described with reference to FIG.
[0036]
In FIG. 4, the user has previously set in the operation definition information file 14 that the upper limit of waiting for 10 seconds for the operation “AP1” and the upper limit of 60 seconds for the operation of “AP2”.
[0037]
The operation information table 15 reflects the operation information of the transaction execution units 131-1 to 131-n as needed. At this time, the operation of "AP1" is executed in five multiplexes, It is recorded that the processing time is 2 seconds per case, and that the work of "AP2" is executed in duplicate, and the average processing time is 10 seconds per case.
[0038]
In this state, the message received from the terminal device 2 is analyzed by the received message analysis unit 121, and here, the input job is analyzed to be “AP1”, and the fact is transmitted to the next queue registration condition determination unit 122. Notified.
[0039]
The queue registration condition determining unit 122 acquires information on the business name “AP1” from the operation definition file 14 and the operation information table 15, and determines from the information based on the information that the message staying in the queues 125-1 to 125n is determined. If the number is less than 25, it is determined that the input to the queues 125-1 to 125-n is performed. If the number is more than 25, it is determined that the input to the queues 125-1 to 125-n is to be suppressed. The fact is notified to the queue registration means 123.
[0040]
When the queue registration unit 123 checks the number of messages stored in the queue immediately before entering the queues 125-1 to 125-n for the business name "AP1", the number of messages stored was 25. -1 to 125-n are suppressed, and the execution avoidance notice creating means 124 is requested to create a response message to the terminal device 2.
[0041]
As described above, in the present embodiment, the execution of the input to the queues 125-1 to 125-n is waited only when the response time is predicted to fall within the allowable range, and immediately when the response time is predicted not to fall within the allowable range. By responding to the terminal device 2 to the effect that the waiting time of the operator of the terminal device 2 can be suppressed within the designated time, the terminal operability at the time of congestion of transaction processing is improved, and the work efficiency of the terminal operator is improved. I can do it.
[0042]
【The invention's effect】
As described above, according to the present invention, in a queuing control device that registers a request from a terminal device in a queue in order to receive and execute the request, a time period from receiving the request to returning a response is set in advance. Predict whether or not it exceeds the allowable range on the user side, and when it is predicted to exceed the allowable range, suppress execution of request enqueue in the queue and inhibit execution of request enqueue in the queue. By notifying the terminal device that the operation has been performed, it is possible to obtain an effect that the terminal operability during congestion of the transaction processing can be improved and the work efficiency of the terminal operator can be improved.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a configuration of an online transaction processing system according to one embodiment of the present invention.
FIG. 2 is a flowchart showing a detailed operation of a queue registration condition determining means of FIG. 1;
FIG. 3 is a flowchart showing a detailed operation of a queue registration unit of FIG. 1;
FIG. 4 is a block diagram showing a specific example of an online transaction processing system according to one embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Online transaction processing system 2 Terminal device 11 Communication device 12 Queue control device 13 Transaction processing device 14 Operation definition file 15 Operation information table 111 Receiving means 112 Transmission means 121 Received message analysis means 122 Queue registration condition judgment means 123 Queue registration Means 124 Non-executable notification creating means 125-1 to 125-n Queues 131-1 to 131-n Transaction executing means 141 Queue upper limit 151 Multiplicity 152 Average processing time information

Claims (6)

A queuing control device for registering the request in a queue to receive and execute the request from the terminal device,
Determining means for predicting in advance whether or not the time from the reception of the request to returning the response exceeds a predetermined allowable range on the user side, and when the determining means predicts in advance that the time exceeds the allowable range. A queue comprising: a registration unit that suppresses execution of registration of the request in a queue; and a notification unit that notifies the terminal device that execution of registration of the request in the queue is inhibited. Control device. An operation information table for registering the average processing time information per case in the request execution unit and the multiplicity of the execution unit, and an operation definition file in which the user can wait for a time in advance. ,
2. The queuing control device according to claim 1, wherein the determination unit predicts in advance whether or not the allowable range is exceeded, based on information in the operation information table and information in the operation definition file. The determining means determines a queue length upper limit for putting into the queue based on the information of the operation information table and the information of the operation definition file,
The registration unit suppresses registration of the request in the queue when detecting that the queue length is larger than the queue length upper limit calculated by the determination unit when registering the request in the queue. 3. The queuing control device according to claim 2, wherein: A method for suppressing registration of a queuing control device that registers a request in a queue to receive and execute a request from a terminal device,
A first step of predicting in advance whether the time from receiving the request until returning a response exceeds a preset allowable range on the user side; And a third step of notifying the terminal device that execution of the registration of the request in the queue has been suppressed. Registration suppression method. The first step includes: an operation information table for registering average processing time information per case in the request execution unit and a multiplicity of the execution unit; and a time in which the user can wait in advance. 5. The registration suppression method according to claim 4, wherein whether or not the allowable range is exceeded is predicted in advance based on information of the registered operation definition file.
Queue control unit. The first step determines a queue length upper limit for putting into the queue based on the information of the operation information table and the information of the operation definition file,
The second step is characterized in that when the request is registered in the queue, when the queue length is detected to be larger than the queue length upper limit, the request is prevented from being registered in the queue. 6. The registration suppression method according to claim 5, wherein:

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