WO2004102409A1 - ネットワークシステム、ネットワーク制御方法及びプログラム - Google Patents
ネットワークシステム、ネットワーク制御方法及びプログラム Download PDFInfo
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- WO2004102409A1 WO2004102409A1 PCT/JP2004/006541 JP2004006541W WO2004102409A1 WO 2004102409 A1 WO2004102409 A1 WO 2004102409A1 JP 2004006541 W JP2004006541 W JP 2004006541W WO 2004102409 A1 WO2004102409 A1 WO 2004102409A1
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- WIPO (PCT)
- Prior art keywords
- client
- processing
- request
- distribution server
- data
- Prior art date
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F15/00—Digital computers in general; Data processing equipment in general
- G06F15/16—Combinations of two or more digital computers each having at least an arithmetic unit, a program unit and a register, e.g. for a simultaneous processing of several programs
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/06—Protocols specially adapted for file transfer, e.g. file transfer protocol [FTP]
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1001—Protocols in which an application is distributed across nodes in the network for accessing one among a plurality of replicated servers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1001—Protocols in which an application is distributed across nodes in the network for accessing one among a plurality of replicated servers
- H04L67/1004—Server selection for load balancing
- H04L67/1008—Server selection for load balancing based on parameters of servers, e.g. available memory or workload
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1001—Protocols in which an application is distributed across nodes in the network for accessing one among a plurality of replicated servers
- H04L67/1004—Server selection for load balancing
- H04L67/101—Server selection for load balancing based on network conditions
Definitions
- the present invention relates to a network system, a network control method, and a program used for performing processing in response to a request from a client connected to a server via a network.
- FTP File Transfer Protocol
- the FTP server exceeded the processing capacity of the FTP server required to provide data to the client.
- the load is high, and in some cases, the data cannot be distributed in response to the data download request from the FTP server.
- FTP servers More and more clients are requesting data downloads.
- the amount of data provided by FTP servers is increasing. For this reason, the load on the FTP server is rapidly increasing. In such a situation, if the ability to request data download from the client becomes more concentrated on the FTP server than the processing capacity of the FTP server required for distributing data to the client and the network capacity, the FTP server will be Will not be able to deliver data in response to such requests.
- the problem described above is not limited to the case where the client downloads data from the FTP server, but also the case where the client requests the server for processing such as computation, and the server executes the processing in response to this request. Occurs similarly.
- the present inventor considers the fact that the user tries to acquire the data stored in the FTP server, for example, predicts a time period during which download requests are not concentrated on the FTP server, and then re-transmits the request to the FTP server.
- An object of the present invention is to provide a network control method, a network system, and a program used for the network control method, in which a user does not have to make a processing request from a client to a server by selecting a time during which the processing is not performed.
- the invention according to claim 1 is a network system which is connected to a plurality of clients via a network and has processing execution means for executing processing requested by each client.
- the client that has requested processing is selectively connected to the processing execution means or the processing request control means based on the processing status of the processing execution means or the use status of a network line connected to the processing execution means.
- a load distribution unit wherein the processing request control unit rejects a request related to the processing from the client. And instructing the client, based on a predetermined condition, a re-request timing for the client to make the request again.
- the network system in a network system that is connected to a plurality of clients via a network and has processing execution means for executing a process requested by each client, the network system includes: The processing request control means and the client requesting the processing based on the processing status of the processing execution means or the use status of the network line connected to the processing execution means are selectively connected to the processing execution means or the processing request control means.
- the processing request control means rejects a request relating to the processing from the client, and instructs the client on a re-request timing for the client to make the request again based on a predetermined condition.
- the load distribution unit selects a server to be connected to the client based on the processing status of the processing execution unit or the use status of the network line connected to the processing execution unit. For example, if the processing load of the processing execution means and the use status of the network line can perform the processing requested by the client, the processing execution means is selected, and the load of the processing execution means and the usage status of the network line are selected. If it is more than a predetermined value and it is not desirable to execute the processing, the processing request control means is selected. Thus, for example, when the processing load of the processing execution means is so large that the processing cannot be executed, the processing is executed by the processing request control means connected to the client instead of executing the processing by the processing execution means.
- rejection of the processing request means temporarily suspending, suspending, postponing, or stopping the processing request on the assumption that the client makes the processing request again under predetermined conditions.
- rejection of the processing request means temporarily suspending, suspending, postponing, or stopping the processing request on the assumption that the client makes the processing request again under predetermined conditions.
- the processing request control means causes the client to formally perform processing by causing the client to download data that is significantly lighter than the file data requested to be downloaded.
- the present invention also includes a mode in which the request is executed, and when a predetermined condition is satisfied later, the client requests the client to again execute the download request of the actually requested file data.
- the invention according to claim 2 of the present invention is a network system connected to a plurality of clients via a network and connected to a processing executing means for executing processing requested by each client,
- the client that has requested processing is selectively connected to the processing execution means or the processing request control means based on the processing status of the processing execution means or the use status of a network line connected to the processing execution means.
- a load distribution unit wherein the processing request control unit rejects a request related to the processing from the client, and sets a re-request timing for the client to make the request again to the client based on a predetermined condition. It is characterized by instructing.
- a network system connected to a plurality of clients via a network and connected to processing executing means for executing a process requested by each client.
- the processing request control means and the processing status of the processing execution means or the client requesting the processing based on the processing status of the network line connected to the processing execution means are selectively connected to the processing execution means or the processing request control means.
- the processing request control means rejects a request relating to the processing from the client, and instructs the client on a re-request timing for the client to make the request again based on a predetermined condition.
- the load distribution unit selects a server that connects to the client based on the processing status of the processing execution unit or the usage status of the network line connected to the processing execution unit. For example, if the processing load of the processing execution means or the load of the network line can be performed by the S client, the processing execution means is selected, and the load on the processing execution means or the load on the network line is selected. If it is more than a predetermined value and it is not desirable to execute the processing, the processing request control means is selected. As a result, for example, when the processing load on the processing execution means is so large that the processing cannot be executed, the processing is executed. Instead of executing the process by the execution unit, the request for the process from the client can be rejected by the process request control unit connected to the client, and the timing for the client to make the request again is determined. The client can be instructed based on the specified conditions.
- the invention according to claim 3 is the network system according to claim 1 or 2, wherein the processing request control means distributes a re-request program for causing the client to make the request again.
- the re-request timing is indicated by the following.
- the processing request control means executes a re-request program for causing the client to make the request again. , The re-request timing is indicated.
- a re-request program for distributing the processing request to the client requesting the processing is distributed to each client.
- the client receives and starts the re-request program, the client can perform re-request processing when a predetermined condition is satisfied.
- the processing request control means determines that a predetermined time has elapsed from a reference time or a predetermined time has elapsed.
- the re-request timing is instructed to the client as the predetermined condition.
- the processing request control means determines that a predetermined time has elapsed from a reference time or that a predetermined time has elapsed. As the predetermined condition, the re-request timing is instructed to the client.
- the reference time is a time when a client first makes a request, a preset time, or the like.
- the processing request control means receives a desired re-request timing from a user, and selects the re-request timing from the user.
- the re-request timing is instructed to the client as the predetermined condition that the re-request timing is reached.
- the processing request control means receives a desired re-request timing from a user and selects the re-request timing from the user. Further, the re-request timing is instructed to the client as the predetermined condition that the re-request timing is reached. That is, by selecting a desired time at which a processing request is made again via the user power client, a re-request timing desired by the user is accepted from the client to the processing request control means.
- the client By causing the client to execute the processing request again using the re-request timing selected by the user as a predetermined condition, the client requests the processing execution unit to perform the processing again at the re-request timing desired by the user who operates the client. can do.
- the term “timing” used in this specification is a general term for a temporal concept including a predetermined time, a predetermined time period, a desired time after a certain time, and a relative time from a certain time. That is.
- the processing request control unit instructs the client that has requested the processing to make the request again.
- the re-request timing is instructed by transmitting a signal to perform the re-request.
- the processing request control means makes the request again to the client which has requested the processing.
- the re-request timing is indicated by transmitting an instruction signal. That is, the processing request control means sends a signal to the client that has requested the processing, thereby instructing the client to make the processing request again.
- the client can request the process execution server again for the process according to the instruction from the process request control unit.
- the processing request control means includes request storage means for storing each client that has requested the processing, and the instruction of the re-request timing is And transmitting a signal instructing the request to be made again in the order stored in the request storage means.
- the processing request control unit includes a request storage unit configured to store each client that has requested the processing, and As the timing instruction, a signal is transmitted to instruct the request to be made again in the order stored in the request storage means.
- the re-request distribution signal is transmitted from the processing request control unit to each client that has requested the processing in the order of the clients stored in the request storage unit.
- the processing request control unit can transmit a signal instructing each client to make a request to the processing execution unit again, in accordance with the order of each client that has requested processing.
- the invention according to claim 8 is a network control method for causing a process execution unit connected to a plurality of clients via a network to execute a process requested by each client,
- the load distribution unit includes: The client requesting the processing is sent to the processing execution means or the processing request control based on the processing status in the processing execution means. Selectively connect to the means.
- the processing request control means instructs a client requesting the processing for a re-request timing for making the request again based on a predetermined condition.
- the load distribution unit selects which of the processing execution unit and the processing request control unit is connected to the client, based on the processing status of the processing execution unit. For example, if the processing load of the processing execution unit is capable of performing the processing requested by the S client, the processing execution unit is selected, and if the load on the processing execution unit exceeds a predetermined value and the processing cannot be performed, etc. , The processing request control means is selected. As a result, depending on the processing status of the processing execution means or the use status of the network line connected to the processing execution means, for example, the processing load of the processing execution means or the network line becomes too small to execute the processing. When the load on the client is heavy, the client makes the above request again to the client which has requested the processing by the processing request control means connected to the client instead of executing the processing by the processing executing means. Can be instructed based on predetermined conditions.
- a process executing means for executing a process requested by each client via a network, rejecting a request related to the process from the client, and re-executing the request at the client.
- Request processing means for instructing a re-request timing for performing the processing based on predetermined conditions, and requesting the above-mentioned processing based on the processing status of the processing execution means or the use status of a network line connected to the processing execution means.
- a network system including a load distribution unit selectively connecting a client to the processing execution unit or the processing request control unit, a program in which the processing request control unit is also transmitted to the client. When it is determined that the re-request timing has arrived, the request is issued. It is characterized by functioning as a means to perform again.
- a process executing means for executing a process requested by each client via a network, a request related to the process from the client is rejected, and the request is Processing request control means for instructing re-request timing for re-executing based on predetermined conditions;
- Load balancing means for selectively connecting the client requesting the processing to the processing execution means or the processing request control means based on the processing status or the use status of the network line connected to the processing execution means.
- the user operating the client does not need to perform an operation for requesting the processing execution means to perform the processing again on the client, and the client automatically operates according to the re-request timing. Can request processing.
- FIG. 1 is a diagram schematically showing a data providing system and a client connected to the data providing system according to a first embodiment of the present invention.
- FIG. 2 is a functional block diagram showing main functions of a data providing system and a client shown in FIG. 1.
- FIG. 3 is a flowchart showing an example of a processing procedure for the data providing system shown in FIG. 2 to provide a file to the client 10a.
- FIG. 4 is a flowchart showing another example of a processing procedure for providing a file to the client 10a by the data providing system shown in FIG. 2.
- FIG. 5 is a functional block diagram illustrating main functions of a data providing system and a client according to a second embodiment of the present invention.
- FIG. 6 is a flowchart showing an example of a processing procedure for the data providing system shown in FIG. 5 to provide a file to a client.
- FIG. 7 is a functional block diagram showing main functions of a data providing system and a client according to a third embodiment of the present invention.
- FIG. 8 is a flowchart showing an example of a processing procedure for providing a file to a client by the data providing system shown in FIG. 7.
- FIG. 9 is a data providing system and a data providing system according to a fourth embodiment of the present invention. It is a figure showing the outline of the client connected to the providing system.
- FIG. 10 is a functional block diagram showing main functions of the data providing system and the client shown in FIG. 9.
- FIG. 11 is a diagram schematically showing a data providing system working in a fifth embodiment of the present invention and a client connected to the data providing system.
- FIG. 12 is a functional block diagram showing main functions of a data providing system and a client shown in FIG. 11.
- FIG. 1 is a diagram schematically illustrating a data providing system 1 as a network system and a client connected to the data providing system 1 according to the first embodiment of the present invention.
- a data providing system 1 according to the first embodiment of the present invention includes a load distribution device 30 functioning as load distribution means, a data distribution server 40 functioning as processing execution means, It includes a reservation ticket distribution server 50 functioning as a processing request control means, and is connected to the client 10 via a network 20 such as the Internet.
- the data distribution server 40 is, for example, an FTP server
- the client 10 is a terminal device having communication means or connected to the communication means, such as a so-called general-purpose computer, personal computer, mobile terminal, or mobile phone. is there.
- the load balancer 30 is connected between the network 20 and the data distribution server O and the reservation ticket distribution server 50, and mediates the connection between the client 10 and the data distribution server O and the reservation ticket distribution server 50. I do.
- the load distribution device 30 receives a download request when a download request requesting distribution of a file such as an application provided by the data distribution server 40 is transmitted by a client. Thereafter, the load distribution device 30 sends the client 10 to the data distribution server 0 and the reservation ticket distribution server in accordance with the state of the data distribution server 0 or the use state (for example, traffic) of the network line 20a connected to the data distribution server 0. Selectively connect to any of 50.
- the load distribution device 30 indicates the status of the processing load of the data distribution server 40.
- the data distribution server 40 can distribute the files stored in the data distribution server to the client 10 by periodically receiving the information or the use status of the network line 20a connected to the data distribution server O from the data distribution server 40. It is determined whether the power is in a proper state or in a state where there is no obstacle to distribution. Here, if the load distribution device 30 determines that the file stored in the data distribution server can be distributed to the client 10 by the data distribution server 40, the load distribution device 30 Connect to distribution server 40.
- the load balancer 30 determines that there is a problem, the load balancer 30 connects the client 10 to the reservation ticket distribution server 50.
- the function of the load distribution device 30 is realized by, for example, a device called a load balancer, an L4 ZL7 switch, or a device including this device.
- the data distribution server 0 stores file data of an application or the like (hereinafter, simply referred to as a file).
- the data distribution server 40 When the data distribution server 40 is connected to the client 10 by the load distribution device 30, the data distribution server 40 transmits the stored file in response to a download request from the client. In addition, the data distribution server 0 periodically loads information indicating the processing load status of the data distribution server 0 itself by distributing the file data to the client 10 and the usage status of the connected network line 20a. Transmit to the distribution device 30.
- Whether the file can be delivered from the data distribution server 40 to the client 10 without any problem is determined by the load distribution device 30 based on the processing load of the data distribution server 40 and the usage status of Z or the network line 20a.
- the load distribution device 30 determines whether the file can be delivered from the data distribution server 40 to the client 10 without any problem.
- a part that may become a bottleneck in the data distribution server 40 for example, a CPU or memory usage rate is used as a judgment material. Is larger than a predetermined value, it is determined that there is a problem with the distribution.
- the line utilization rate with respect to the line capacity of the network line 20a is used as a criterion. If the utilization rate is a predetermined ratio with respect to the line capacity, it is determined that there is a problem with the distribution.
- the number of clients currently connected to the data distribution server may be used as a criterion, and if the number exceeds a predetermined number, the state may be determined as having a problem with distribution.
- the above determinations may be used in combination.
- the reservation ticket distribution server 50 stores a reservation ticket program.
- the reservation ticket program is a program that causes the client 10 to request the download again at the re-request timing.
- the re-request timing in the reservation ticket program refers to the time period during which it is expected that there will be few download requests and the processing load of the data distribution server O will be small, at the time of the client's previous download request. This is a predetermined time selected from the band. A plurality of re-request timings are selected, and a reservation ticket program is prepared for each re-request timing. Actually, the time when a predetermined time has elapsed from the time when the download request was issued, specifically, the time when N hours or N minutes (N is a positive number) specified by the client 10 may be used as the re-request timing.
- the reservation ticket distribution server 50 connected to the client 10 by the load distribution device 30 rejects the download request from the client 10 and distributes the reservation ticket program to the client 10 in order from the earliest re-request timing. I do.
- the data distribution server 0 will receive the download requests from the plurality of clients 10 again at the re-request timing. .
- the processing load and the line load of the data distribution server 40 increase, and the file may not be provided to the plurality of clients 10.
- the reservation ticket distribution server prepares a plurality of predetermined times, that is, re-request timings in the reservation ticket program.
- the reservation ticket distribution server limits the number of distributions of re-request programs that make re-requests at the same time in consideration of the number of requests that can be processed without any problem in the data distribution server 0.
- the re-request program is stored, and each time the re-request program is delivered or whenever the above-mentioned distribution limit is exceeded, a re-request program with a changed re-request timing is generated and stored in the reservation ticket distribution server. Also good. As described above, when the load distribution device 30 receives the download request from the client 10 and determines that the data distribution server 40 has a problem in distributing the file, the load distribution device 30 Instead of O, the reservation ticket distribution server 50 is connected to the client 10 that has made the download request, and the reservation ticket distribution server 50 distributes the reservation ticket program to the client 10.
- the client 10 that has received the reservation ticket program automatically executes the data transmission when the re-request timing is expected to reduce the processing load of the data distribution server 0.
- the download request is made to the distribution server 40 again.
- the reservation ticket program estimates the time when the processing load of the data distribution server 40 will be small, and automatically transmits the time to the data distribution server 40. Since the download request is made again, the user does not need to perform the operation for the download request again on the client, and can easily download the file via the client 10.
- FIG. 2 is a functional block diagram showing an example of main functions of the data providing system 1 and the client 10 shown in FIG.
- a case where the client 10a shown in FIG. 1 makes a download request will be described as an example.
- the client 10a includes an input unit 101, a client-side transmitting / receiving unit 102, a client-side storage unit 103, and a program execution unit 104.
- the input unit 101 receives a download command for causing the client 10a to execute a download request in which user power is also input, and transmits the download command to the client-side transmitting / receiving unit 102.
- the client-side transmitting / receiving unit 102 functions as a transmitting / receiving unit, receives a download command from the input unit 101, and issues a download request to the load distribution device 30 according to the download command.
- the client-side transmitting / receiving unit 102 is connected to the data distribution server 40 via the network 20 and receives the file.
- the client-side receiving unit 102 is connected to the reservation ticket distribution server 50 via the network 20 and receives the reservation ticket program. Then, the client-side receiving unit 102 According to the reservation ticket program, a download request is made to the load distribution device 30 at a predetermined time.
- the client-side storage unit 103 is realized by a memory or the like, stores a reservation ticket program received by the client-side transmission / reception unit 102, and stores the reservation ticket program while the reservation ticket program is being activated by the program execution unit 104. Make the program resident.
- the program execution unit 104 functions as a transmission / reception control unit, sequentially executes the reservation ticket program stored in the client-side storage unit 103, and when the re-request timing comes, the client-side transmission / reception unit 102 sends the load distribution device 30 A download request is made to the data distribution server 0 via.
- the load balancer 30 includes a load balancer-side transmitting / receiving unit 301 and a server selecting unit 302.
- the load balancer-side transmitting / receiving section 301 receives the download request from the client-side transmitting / receiving section 102, and transmits one of the data distribution server 0 and the reservation ticket distribution server 50 selected by the server selecting section 302 to the download request.
- the client-side transmitting / receiving section 102 is connected.
- the load balancer-side transmitting / receiving section 301 periodically receives information indicating the processing load status of the data distribution server 40 from the data distribution server 40, and transmits the received information indicating the processing load status of the data distribution server 0. Sent to server selector 302.
- the server selection unit 302 receives information indicating the processing load status of the data distribution server 40 from the load distribution device-side transmitting / receiving unit 301, and, based on the information, transmits data from the data distribution server 40 and the reservation ticket distribution server 50 to the client. Server to be connected to the transmitting / receiving unit 102 is selected. For example, when the received information indicating the processing load status of the data distribution server 40 indicates that the file can be distributed without any trouble, the server selection unit 302 selects the data distribution server 40. If the received information indicating the processing load status of the data distribution server 40 indicates that the processing load of the data distribution server 40 is large enough to hinder file distribution, the server selection unit 302 makes a reservation. Select the ticket distribution server 50. Then, the load balancer-side transmitting / receiving section 301 connects the client-side transmitting / receiving section 102 to the selected server 40.
- the data delivery server 0 includes a data delivery server-side transmitting / receiving unit 401 and a file storage unit 402. And The data transmission / reception server side transmission / reception unit 401 reads a file stored in the file storage unit 402 when connected to the client side transmission / reception unit 102 by the load distribution device side transmission / reception unit 301. Then, the data distribution server-side transmission / reception unit 401 transmits the file to the client-side transmission / reception unit 102 via the load distribution device 30. Further, the data distribution server-side transmission / reception unit 401 periodically transmits information indicating the processing load status of the data distribution server 40 to the load distribution device-side transmission / reception unit 301.
- the file storage unit 402 stores a file to be provided to the client 10.
- the reservation ticket distribution server 50 includes a reservation ticket distribution server-side transmitting / receiving unit 501 and a reservation ticket storage unit 502.
- the reservation ticket distribution server-side transmission / reception unit 501 rejects a download request from the client 10a and stores the request in the reservation ticket storage unit 502 when connected to the client-side transmission / reception unit 102 by the load distribution device-side transmission / reception unit 301. Read the reservation ticket program you want to use.
- the reservation ticket distribution server-side transmitting / receiving section 501 transmits the reservation ticket program to the client-side transmitting / receiving section 102 via the load distribution device 30 in response to the download request.
- the data providing system 1 shown in FIG. A processing procedure for providing a file to the client 10a will be described with reference to FIGS.
- FIG. 3 is a flowchart showing an example of a processing procedure for providing a file to the client 10a by the data providing system 1 shown in FIG.
- step S1 the input unit 101 of the client 10a receives a download command in which user power is also input.
- the input unit 101 transmits the received download command to the client-side transmitting / receiving unit 102.
- the client-side transmission / reception unit 102 that has received the download instruction transmits a download request to the load distribution device 30 according to the download instruction (S2).
- the download request transmitted in step S2 is received by the load balancer-side transmitting / receiving section 301 (S3).
- the download request is transmitted from the load balancer-side transmitting / receiving section 301 to the server selecting section 302.
- the server selection unit 302 determines whether the processing load of the data distribution server 0 periodically transmitted from the transmission / reception unit 401 on the data distribution server side or the usage status of the network line 20a. It is determined based on the information indicating whether the data distribution server 40 is in a state where the file can be distributed without any trouble (S4).
- the server selection unit 302 selects the reservation ticket distribution server 50 and transmits / receives the load distribution device side transmission / reception unit 301.
- the client-side transmitting / receiving unit 102 and the reservation ticket distribution server 50 are connected via the server (S5).
- the reservation ticket distribution server-side transmission / reception unit 501 rejects the download request from the client 10a, reads the reservation ticket program stored in the reservation ticket storage unit 502, and transmits the request via the load distribution device-side transmission / reception unit 301. Then, the reservation ticket program is transmitted to the connected client transmitting / receiving section 102 (S6).
- the client-side transmitting / receiving section 102 receives the reserved ticket program from the reserved ticket distribution server-side transmitting / receiving section 501, and stores the reserved ticket program in the client-side storage section 103.
- the program execution unit 104 activates the reservation ticket program stored in the client-side storage unit 103 (S7).
- the program execution unit 104 reads the time at predetermined intervals according to the activated reservation ticket program, and determines whether or not the re-request timing has come (S8).
- an advertisement may be displayed on a display screen (not shown). With this display, the reservation ticket program has a function as an advertisement medium. This display also serves as a marker for the user to recognize that the reservation ticket program is running.
- step S8 is repeatedly executed until it is determined that the re-request timing has come. If it is determined that the re-request timing has come (YES in S8), step S2 is executed, and the program executing unit 104 causes the client-side transmitting / receiving unit 102 to execute the download request. If it is determined in step S8 that the re-request timing has come, a voice control device (not shown) may generate an alarm using a speaker power (not shown). Thus, the user can be notified that the download request is made.
- the program executing unit 104 deletes the reservation ticket program stored in the client-side storage unit 103.
- the reservation ticket program stored in the client side storage unit 103 is deleted.
- the unnecessary reservation ticket program after the download request is made by the client side transmission / reception section 102 is deleted from the client side storage section 103. be able to. Therefore, the storable capacity (free space) of the client-side storage unit 103 can be prevented from being unnecessarily reduced by storing unnecessary reservation ticket programs.
- the program execution unit 104 determines in step S8 that the re-request timing has come. I can't do that. Even in such a case, if the power supply for supplying power to the client 10a is turned on at a time exceeding the re-request timing, the program execution unit 104 will be turned on every predetermined period from the time when the power supply is turned on. The time is read and it is determined whether or not the force has come to the re-request timing.
- step S8 since the predetermined period that is first read when the power is turned on has already reached the re-request timing, it is determined in step S8 that the re-request timing has come. Thus, even if the user cannot turn on the client 10a at the re-request timing, step S2 is executed when the user turns on the power, and the program execution unit 104 It is possible to execute a download request.
- step S2 The download request transmitted from the client-side transmitting / receiving section 102 in step S2 is received by the load balancer-side transmitting / receiving section 301 in step S3. Then, in step S4, based on the information indicating the processing load status of the data distribution server 0 periodically transmitted from the data distribution server side transmitting / receiving section 401, the server selection section 302 performs data distribution. It is determined whether or not the server 40 is in a state where the file can be delivered without any trouble.
- Step S5 is executed again, and the client-side transmitting / receiving section 102 and the reservation ticket distribution server-side transmission / reception section 501 are connected via the load distribution apparatus-side transmission / reception section 301, and the reservation ticket program is transmitted by the reservation ticket distribution server-side transmission / reception section 501. It is transmitted to client side transmitting / receiving section 102 (S6).
- the client-side transmission / reception unit 102 does not need to input the download command again until the file is received. Can be sent repeatedly. That is, a user who wants to obtain a file via the client 10a does not need to input a download command to the client 10a many times until the data distribution server 0 can distribute the file.
- step S4 the server selection unit 302 determines in step S4 that the data distribution server 0 can distribute the file without any trouble.
- the server selection unit 302 selects the data distribution server 40 and sends it through the load distribution device side transmission / reception unit 301. Then, the client side transmitting / receiving section 102 and the data distribution server side transmitting / receiving section 401 are connected (S9).
- the transmission / reception unit 401 on the data distribution server side reads out the file stored in the file storage unit 402 for the connected transmission / reception unit 102 on the client side and reads the file via the transmission / reception unit 301 on the load distribution device side. Transmit to 102 (S10).
- the client-side transmitting / receiving unit 102 receives the file transmitted in step S10 (S11).
- the client-side transmitting / receiving section 102 stores the received file in the client-side storage section 103. As a result, the file download by the client 10a is completed, and the process ends.
- the data distribution server 0 When the data distribution server 0 distributes a file in response to a download request by the reservation ticket program, or when the reservation ticket distribution server 50 causes the client 10a to download the reservation ticket program, the data distribution server 0 or The reservation ticket distribution server 50 may provide the file with a bonus such as a game.
- a bonus such as a game.
- step S9 only when it is determined in step S4 that the data delivery server O is in a state where the file can be delivered without any trouble, in step S9, the load balancer-side transmitting / receiving unit 301 and the client-side transmitting / receiving unit 102 The transmission / reception unit 401 on the data distribution server side can be connected.
- step S4 when it is determined in step S4 that the data distribution server 0 is not in a state where the file can be distributed, the load balancer-side transmission / reception section 301 sends the client-side transmission / reception section 102 and the reservation ticket distribution server 50 Can be connected.
- the load distribution device 30 quickly connects the reservation ticket distribution server 50 or the data distribution server 0 to the client 10a in accordance with the load condition of the data distribution server 40, so that the file or the reservation ticket program is promptly transmitted. Can be provided to clients. As a result, it is possible to instruct the client 10a at a re-request timing for the client 10a to make a download request again. Also, the data distribution server-side transmitting / receiving section 401 of the data distribution server 40 can perform processing for transmitting a file exclusively, and the reserved ticket storage section 502 of the reserved ticket distribution server 50 transmits the reserved ticket program. Processing can be performed exclusively. Therefore, the file or the reservation ticket program can be promptly provided to the client 10a.
- the reservation ticket program requests the download again after a lapse of a predetermined time from the time when the user has first requested the download with the re-request timing set in advance and the power stored in the reservation ticket distribution server 50. May be.
- the data providing system 1 receives a download request from the client 10a and it is determined that the processing by the data distribution server 0 is difficult, and the client 10a is connected to the reservation ticket distribution server 50,
- the time at which the download request was received is acquired by a timer (not shown), and the reservation ticket program with the time attached as information is delivered to the client 10a.
- the reservation ticket program uses the attached time as a reference time, and makes a download request again after a lapse of a predetermined time from the reference time. That is, here, the time at which the predetermined time has elapsed from the reference time is the re-request timing.
- the reservation ticket distribution server 50 A reservation ticket program that causes the client 10a to make a download request again will be described.
- the difference from the processing procedure shown in FIG. 3 is that steps S6, S8 are not executed, and steps S21, S22, S23 are executed.
- the reservation ticket storage unit 502 stores a reservation ticket program in which the time after a predetermined time has elapsed from the time set as the reference time is set as the re-request timing.
- step S21 when the transmission / reception unit 501 on the reservation ticket distribution server side is connected to the client 10a, the connection time is obtained by a timer (not shown), and the obtained time is set as a reference time.
- the indicated information is stored in the reservation ticket storage unit 502.
- the transmission / reception unit 501 on the reservation ticket distribution server side attaches the information indicating the reference time stored in the reservation ticket storage unit 502 to the reservation ticket program, and stores the reservation ticket program stored in the reservation ticket storage unit 502. Is transmitted to the client 10a (S22).
- the reservation ticket program received by the client-side transmitting / receiving section 102 is started.
- step S23 it is determined whether or not the program execution unit 104 has applied a predetermined period of time from the reference time. If it is not determined that the predetermined period has elapsed from the reference time (S23; NO), the repetition step S23 is executed. If it is determined that the predetermined period has elapsed from the reference time (S23; YES), step S2 is executed, and the client-side transmitting / receiving unit 102 transmits the download request again.
- the reservation ticket program automatically estimates the time when the processing load of the data distribution server 40 will be small and automatically distributes the data. Since the download request is made to the server 40 again, the user does not need to perform the operation for the download request again on the client, and can easily download the file via the client 10.
- the reference time is not limited to the time at which the download request is made, and may be a time at which the load on the server is expected to be small.
- a reservation ticket program may be generated with the time after a predetermined time has elapsed from the time when the download reservation is received from the client 10 as the re-request timing. Then, the reservation ticket program may be stored in the reservation ticket distribution server and downloaded to the client.
- the data providing system 2 is designed to provide a reservation ticket if the data delivery server 40 is not in a state where the file can be delivered without any trouble when the client 100 makes a download request.
- the distribution server 50 provides a re-request timing selection menu for the client 100 that has made the download request to select the user's desired predetermined time or time period from a plurality of predetermined times or time periods as the re-request timing. The point of distribution is different from the data providing system 1 according to the first embodiment of the present invention.
- the data providing system 2 receives the re-request timing data indicating the re-request timing based on the re-request timing selection menu, and
- the difference from the data providing system 1 according to the first embodiment of the present invention is that a reservation ticket program for requesting the client 100 to download is transmitted to the client 100.
- FIG. 5 is a functional block diagram showing main functions of the data providing system and the client 100 according to the second embodiment of the present invention.
- the client 100a further includes a display unit 105 in addition to the input unit 101, the client-side transmitting / receiving unit 102, the client-side storage unit 103, and the program execution unit 104.
- the display unit 105 displays a re-request timing selection menu based on the menu data transmitted by the reservation ticket distribution server-side transmitting / receiving unit 501 in a case where the data distribution server 40 described below cannot distribute the file.
- the re-request timing selection menu is a menu for allowing the user to select a predetermined time or a predetermined time zone desired by the user as re-request timing.
- the user looks at the re-request timing selection menu displayed on the display unit 105, and checks a plurality of predetermined times or predetermined time periods indicated in the re-request timing selection menu. An operation of selecting is performed on the input unit 101.
- the input unit 101 receives a re-request timing transmission command input by the user performing an operation of selecting a re-request timing.
- the re-request timing transmission command is a command for transmitting re-request timing data indicating the re-request timing selected by the user from the input unit 101 to the reservation ticket distribution server 50 via the client-side transmitting / receiving unit 102.
- the client-side transmitting / receiving section 102 receives the re-request timing transmission command via the input section 101, and transmits the re-request timing data to the reservation ticket distribution server-side transmitting / receiving section 501 according to the re-request timing transmission command.
- the reservation ticket distribution server 50a includes a menu storage unit 503 in addition to the reservation ticket distribution server side transmitting / receiving unit 501 and the reservation ticket storage unit 502a.
- the menu storage unit 503 stores menu data which is image data for displaying the above-described re-requested timing selection menu.
- the reservation ticket distribution server-side transmitting / receiving section 501 receives the re-request timing data indicating the re-request timing selected by the user from the client-side transmitting / receiving section 102, and when the re-request timing indicated by the re-request timing data comes,
- the reservation ticket program that causes the client 100a to execute the download request again is read from the reservation ticket storage unit 502a and transmitted to the client-side transmitting / receiving unit 102.
- the reservation ticket storage unit 502a stores a reservation ticket program.
- the client 100a receives the re-request timing indicated by the re-request timing data received by the reservation ticket distribution server-side transmission / reception unit 501.
- a reservation ticket program corresponding to a plurality of predetermined times or a plurality of predetermined time zones indicated in the re-request timing selection menu is stored in the reservation ticket storage unit 502a, and the reservation ticket distribution server side transmitting / receiving unit 501 is stored.
- the reservation ticket program corresponding to the re-request timing indicated by the received re-request timing data may be appropriately read out from a plurality of reservation ticket programs stored in the reservation ticket storage unit 502a. .
- the reservation ticket distribution server-side transmitting / receiving section 501 transmits the menu data to the client 10 Oa, and transmits the reservation ticket program corresponding to the re-request timing selected by the user based on the menu data to the re-request timing. Is sent to the client 100a corresponding to the selected user.
- the user can cause the client 100a to execute the download request again at a time or a time zone according to the user's desire.
- FIG. 6 is a flowchart showing an example of a processing procedure for the data providing system 2 shown in FIG.
- FIG. 6 the same reference numerals are given to the same steps as the steps of the processing procedure when the data providing system 1 according to the first embodiment of the present invention shown in FIG. 3 provides a file to the client 100a.
- step S3 the download request is sent to the load distribution device 30 in the same manner as the processing procedure for the data providing system 1 according to the first embodiment of the present invention shown in FIG. 3 to provide a file to the client 100a.
- the load distribution device 30 determines whether the data distribution server 40 is in a state where the file can be distributed. If the data distribution server 40 determines that the file cannot be distributed, in step S5, the client-side transmitting / receiving unit 102 and the reservation ticket distribution server 50a are connected to each other according to the second embodiment of the present invention.
- the reservation ticket distribution server-side transmitting / receiving section 501 rejects the download request from the client 100a and stores the menu stored in the menu storage section 503.
- the data is transmitted to the client side transmitting / receiving unit 102.
- the client side transmitting / receiving unit 102 The menu data is received from the reservation ticket distribution server-side transmitting / receiving section 501, and the menu data is stored in the client-side storage section 103 (S32). Then, based on the menu data stored in the client-side storage unit 103, the program executing unit 104 selects a re-request timing indicating a plurality of predetermined times or a plurality of predetermined time zones selectable by the user. A menu is created, and a re-request timing selection menu is displayed on the display unit 105 (S33).
- the input unit 101 receives a re-request timing transmission command (S34).
- the client-side transmitting / receiving section 102 receives the re-request timing transmission command via the input section 101, and transmits re-request timing data indicating the re-request timing to the reservation ticket distribution server-side transmitting / receiving section 501 in accordance with the re-request timing transmission command. (S35). Then, the reservation ticket distribution server-side transmitting / receiving section 501 receives the re-request timing data from the client-side transmitting / receiving section 102 (S36).
- the reservation ticket distribution server-side transmitting / receiving unit 501 rewrites the reservation ticket program stored in the reservation ticket storage unit 502a to make the client 100a request the download again at the re-request timing indicated by the re-request timing data.
- the rewritten reservation ticket program is read from the reservation ticket storage unit 502a.
- the reserved ticket distribution server side transmitting / receiving section 501 transmits the reserved ticket program read from the reserved ticket storage section 502a to the client side transmitting / receiving section 102 (S6).
- step S7 the client-side transmitting / receiving section 102 receives the reservation ticket program from the reservation ticket distribution server-side transmitting / receiving section 501 and stores it in the client-side storage section 103, and the program execution section 104 stores the program in the client-side storage section 103. Activate the stored reservation ticket program. If it is determined in step S8 that the re-request timing has come, step S2 is executed, and the program execution unit 104 causes the client-side transmission / reception unit 102 to execute a download request.
- the client-side transmitting / receiving unit 102 makes a download request again.
- the client 100a is started at a user's desired time according to the situation of the user, and the client 100a is started.
- a download request can be executed. Therefore, even if the user does not input the download request command again to the S client 100a, the user of the client 100a predicts the time period during which the data distribution server 40 can transmit the file, and the user's convenience. At a different time, the file becomes available.
- the data providing system 3 is designed so that the data delivery server 40 cannot provide the file without any trouble when the client 10a makes a download request.
- the distribution server 50b distributes the reservation ticket program to the client 10a that has issued the download request, and issues an instruction signal to issue a download request to the client 1 Oa that has received the reservation ticket program at a predetermined time. Send.
- the reservation ticket distribution server 50b is different from the data providing system according to the first and second embodiments of the present invention in that the reservation ticket distribution server 50b indicates the re-request timing.
- the client 10a that has received the reservation ticket program enters a standby state.
- the client 10a releases the standby state, and the client 10a makes a download request by the reservation ticket program.
- the instruction signal is distributed to each client in the order in which the reservation ticket distribution server 50b receives the download request.
- FIG. 7 is a functional block diagram showing main functions of the data providing system 3 and the client 10a according to the third embodiment of the present invention.
- the reservation ticket distribution server 50b of the present embodiment has a request storage unit 504 as request storage means for storing each client who has requested download.
- the reservation ticket distribution server side transmitting / receiving section 501 transmits an instruction signal for instructing the client 10a requesting the download to make the download request again.
- FIG. 8 is a flowchart illustrating an example of a processing procedure for providing a file to the data providing system 3 S client 10a illustrated in FIG. In FIG. 8, the same steps as those in the processing procedure for providing a file to the client 10a by the data providing system 1 according to the first embodiment of the present invention shown in FIG. Is attached.
- the reservation ticket distribution server 50b connected to the client 10a in steps S3 to S5 rejects the download request from the client 10a and transmits the reservation ticket program to the client 10a in step S6.
- the reservation ticket program of the present embodiment is for causing the client 10a to execute the download request again when the client 10a receives the instruction signal from the reservation ticket distribution server 50b.
- the client 10a that has received the reservation ticket program in step S7 enters a standby state.
- the request storage unit 504 stores the client 10a together with the storage order.
- the request storage unit 504 stores each client that has made a download request, along with the order between the clients. For example, when the client 10a makes a download request after the client 10b and is connected to the reservation ticket distribution server 50b, the client 10a is stored in the request storage unit 504 in an order after the client 10b. become.
- step S42 when the data distribution server 0 can distribute the file without any trouble, the reservation ticket distribution server 30 sends the file to the client 10 that has requested the download according to the order stored in the request storage unit 504. An instruction signal for instructing the user to make a download request again is sequentially transmitted.
- the reservation ticket distribution server 30 determines whether the data distribution server 40 can distribute the file without any trouble at predetermined time intervals. The reservation ticket distribution server 30 determines by receiving information indicating the processing load from the data distribution server 40.
- step S43 the client-side transmitting / receiving section 102 receives the instruction signal. Then, the program execution unit 104 detects the reception of the instruction signal, cancels the standby state, and executes the reservation ticket program. As a result, the process returns to step S2, and the program execution unit 104 causes the client-side transmission / reception unit 102 to execute a download request.
- step S42 when the data distribution server 0 can distribute the file without any trouble, the above instruction signal is transmitted from the reservation ticket distribution server 30 to the client 10a. It is possible to make a download request when downloading is possible. As a result, the client 10a can download the file with a higher probability than the data providing systems 1 and 2 according to the first and second embodiments of the present invention.
- the request storage unit 504 stores the order of the client 1 Oa and the client 10a, and transmits the above-described instruction signal to each client 10 according to the order. It is less likely that there will be a delay between the waiting times.
- FIG. 9 is a diagram schematically showing a data providing system 4 as a network system and a client 10 connected to the data providing system 1 according to the fourth embodiment of the present invention.
- FIG. 10 is a functional block diagram showing an example of main functions of the data providing system 4 and the client 10 shown in FIG. Here, a case where the client 10a shown in FIG.
- the data providing system 4 is characterized in that the client 10a, the data distribution server 40, and the reservation ticket distribution server 50 are not connected via the load distribution device 300 but are connected to each other. This is different from the data providing system 1 according to the first embodiment.
- the load balancer 300 is implemented by a router, and when the client 10a transmits a download request, first, the load balancer 300 receives the download request, refers to its own routing table, and receives the download request. Request the data distribution The transfer is made to one of the coupon distribution servers 50.
- the routing table is managed by the administrator, and is updated according to the processing status of the data distribution server 40. If there is a problem in the file distribution by the data distribution server 0, the load distribution device 30 transfers the download request to the reservation ticket distribution server 50 instead of the data distribution server 40. If the data distribution server 0 can distribute the file without any trouble, the load distribution device 30 transfers the download request to the data distribution server 40 instead of the reserved ticket distribution server 50.
- the server selection unit 302a refers to the routing table and determines the transfer path indicated by the routing table.
- the load balancer-side transmitting / receiving section 301a transfers the download request to one of the data distribution server 0 and the reservation ticket distribution server 50 according to the determined transfer path.
- the data distribution server-side transmission / reception unit 401 transmits a file such as an application stored in the file storage unit 402 to the client 10a.
- the reservation ticket distribution server-side transmission / reception unit 501 rejects the download request from the client 10a and also stores the reservation ticket stored in the reservation ticket storage unit 502. Send the program to client 10a.
- the reservation ticket program or the data distribution client 10a distributes the data to the file client 10a distributed by the data distribution server 0, in addition to the effects of the data distribution system 1. In this case, it is not necessary to go through the load distribution device 300, so that the overall traffic including the line load in the data providing system can be reduced.
- the data providing system 4 may be configured to use one of the reserved ticket distribution server 50a (see FIG. 5) and the reserved ticket distribution server 50b (see FIG. 7) instead of the reserved ticket distribution server 50. ,.
- FIG. 11 shows a network system according to a fifth embodiment of the present invention.
- FIG. 1 is a diagram schematically illustrating all data providing systems 5 and a client 10 connected to the data providing system 1.
- FIG. 12 is a functional block diagram showing an example of main functions of the data providing system 5 and the client 10 shown in FIG.
- a case where the client 10a shown in FIG. 11 makes a download request will be described as an example.
- the data providing system 5 is characterized in that the client 10a and the reservation ticket distribution server 50 are connected via the load distribution device 300, and the data distribution server 40 and the client 10a are connected. This is different from the data providing system 4 according to the fourth embodiment of the invention.
- the load distribution device 300 is realized by a router. When the client 10a transmits a download request, first, the load distribution device 300 receives the request. Next, the load distribution device 300 refers to its own routing table and transfers the received download request to the data distribution server 0, and relays the client 10a and the reservation ticket distribution server 50.
- the load distribution device 30 relays the download request between the client 10a and the reservation ticket distribution server 50, and the data distribution server 40 has a problem. If the file can be distributed without any change, the load distribution device 30 transfers the download request to the data distribution server 40.
- server selection section 302a refers to the routing table and determines the transfer path indicated by the routing table.
- the load balancer-side transmitting / receiving unit 301a relays the download request between the client 1 Oa and the reservation ticket distribution server 50 according to the determined transfer path, and transfers the download request to the data distribution server 0.
- the data distribution server-side transmission / reception unit 401 transmits a file such as an application stored in the file storage unit 402 to the client 10a.
- the transmission / reception unit 501 on the reservation ticket distribution server side receives the transferred download request
- the transmission / reception unit 501 on the reservation ticket distribution server side transmits the reservation ticket program stored in the reservation ticket storage unit 502 to the client 10a.
- the data providing system 5 when the reservation ticket program is transmitted to the client 10a, in addition to the effect of the data providing system 1, Since the load does not pass through the load distribution device 300, overall traffic including the line load in the data providing system can be reduced.
- the data providing system 5 may be configured to use either the reservation ticket distribution server 50a (see FIG. 5) or the reservation ticket distribution server 50b (see FIG. 7) instead of the reservation ticket distribution server 50. Yo! / ,.
- the configuration may be such that the client 10a and the reservation ticket distribution server 50 are connected, and the data distribution server 40 and the client 10a are connected via the load distribution device 300.
- the data distribution server 40 When a file to be distributed is transmitted to the client 10a, the traffic does not pass through the load distribution device 300, so that traffic in the data providing system can be reduced.
- the reservation ticket distribution servers 50, 50a, 50b do not have the reservation ticket storage unit 502 and do not distribute the reservation ticket program.
- the reservation ticket distribution server 50, 50a, 50b communicates with the connected client when the re-request timing comes or when the data distribution server 40 can distribute the file without any trouble. It is conceivable that the user directly instructs a download request or sends a message instructing a download request by e-mail or the like.
- any one of the reservation ticket distribution server 50, the reservation ticket distribution server 50a, and the reservation ticket distribution server 50b is loaded. It has the distribution device 30 or the load distribution device 300, but is not necessarily limited to this.
- the data distribution server 40 has a storage unit for storing the reservation ticket program, and stores the file.
- the data distribution server-side transmitting / receiving unit 401 reads the reservation ticket program stored in the storage unit and transmits the data to the client-side transmitting / receiving unit 102. Data providing system.
- the data providing system 115 which is powerful according to the first to fifth embodiments of the present invention, provides, in response to a request, a file, such as an application, which is not necessarily limited to this. Just data.
- the re-request timing in the reservation ticket program is the same as that of the first to fifth embodiments of the present invention.
- the download request does not necessarily have to be concentrated on the data distribution server O! What,
- the data distribution server O distributes the file to the clients 10 and 100, and the reservation ticket distribution servers 50 and 50a.
- the data distribution server 40 and the reservation ticket distribution servers 50, 50a, 50b may be POP (Post Office Protocol) servers.
- the reservation ticket program is attached to e-mail and distributed.
- the reservation ticket program makes the client request again to receive data, programs, and the like by e-mail at the re-request timing.
- the process execution server that processes a request from a client since the process execution server that processes a request from a client has a data delivery server, the process execution server in the present invention is not necessarily configured as a data providing system.
- a server that does not need to be a server for distributing data itself may execute the processing requested by the client on the server itself, or a server that executes processing in cooperation with the client.
- the processing execution unit or the network line load connected to the processing execution unit is so large that the processing cannot be executed, depending on the processing status of the processing execution unit.
- the request is temporarily refused by the processing request means connected to the client, and then, when the predetermined condition is satisfied, the request is made again to the client which requested the processing.
- the re-request processing will be performed.
- the predetermined condition to be satisfied is, for example, a condition that the processing load of the processing execution unit becomes equal to or less than the predetermined load. Therefore, when the processing execution means can execute the processing requested by the client without any trouble, the client executes the processing execution means again. Can be requested for processing.
- the processing load of the processing execution unit and the network line load connected to the processing execution unit are so large that the processing cannot be executed according to the processing status of the processing execution unit.
- the client requesting the processing when the predetermined condition is satisfied by the processing requesting means connected to the client is re-requested to perform the request again. It will be.
- the predetermined condition to be satisfied is set to, for example, the condition when the processing load of the processing execution unit becomes equal to or less than the predetermined value.
- the client when the client receives and starts the re-request program stored in the processing request control means, the client automatically re-requests when a predetermined condition is satisfied.
- the processing is performed for the network system. Therefore, even when the processing execution means cannot execute the processing requested by the client, the processing is automatically performed when the user satisfies a predetermined condition for performing the operation of requesting the processing execution means to request the processing again. , The client can make this request again.
- the client when a predetermined time has elapsed or the predetermined time has elapsed from the time of the network system acquired by the timer, the client automatically requests the download again. Therefore, for example, a re-request program in which the time at which the processing load of the processing execution unit is estimated not to be large is set as the predetermined time, or the time from the time obtained by the timer to the predetermined time is set as the predetermined time is stored. In this case, the user can request the process execution unit to perform the process at the time without estimating the time at which the processing load of the process execution unit is assumed not to be large.
- the re-request program distribution means stores a re-request program for making a request again at a desired predetermined time selected by the user, and distributes the desired predetermined time to the selected client.
- the client activates the re-request program, a request for processing is sent to the client at the re-request timing desired by the user. Can be made.
- the client can request the process execution means again for the process according to the instruction, so that the user of the client does not need to judge again the timing for requesting the process. Is also good. Also, if the re-request instructing unit is configured to instruct the client requesting the process to make the request again at a time when the processing load of the process executing unit is not large, the processing load of the process executing unit may be changed. According to the present invention as set forth in claim 7, it is possible to request the processing execution means in accordance with the order of the processing without estimating the time. Therefore, each client can request the processing to the processing execution unit in the order of requesting the processing.
- the processing status of the processing executing means for example, when the processing load of the processing executing means is large enough to hinder the execution of the processing, the processing is executed by the processing executing means.
- the client is connected to the client and the predetermined condition is satisfied by the processing request means, the client requesting the processing is re-requested to perform the request again.
- the predetermined condition to be satisfied is, for example, when the processing load of the processing execution means becomes equal to or less than the predetermined value!
- the client can request the processing execution means again for the processing.
- a client that does not perform an operation for requesting a process again to the process execution means to the client requests the process automatically when a predetermined condition is satisfied. It will be.
- the process execution unit can perform the process without giving the user the trouble of performing the operation of requesting the client to perform the process of the process execution means.
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Abstract
Description
Claims
Priority Applications (3)
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US10/557,256 US7711833B2 (en) | 2003-05-16 | 2004-05-14 | Network system, network control method, and program |
EP04733091A EP1628226A4 (en) | 2003-05-16 | 2004-05-14 | NETWORK SYSTEM, NETWORK CONTROL METHOD, AND PROGRAM |
HK06108544A HK1088408A1 (en) | 2003-05-16 | 2006-08-01 | Network system and network control method |
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JP2003138766A JP3829125B2 (ja) | 2003-05-16 | 2003-05-16 | ネットワークシステム、ネットワーク制御方法及びプログラム |
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JP4642674B2 (ja) * | 2006-02-27 | 2011-03-02 | 京セラ株式会社 | 端末管理システム |
JP2008191938A (ja) * | 2007-02-05 | 2008-08-21 | Balantec Ltd | 負荷軽減化処理方法及び装置 |
KR100914771B1 (ko) * | 2007-05-09 | 2009-09-01 | 주식회사 웰비아닷컴 | 일회용 실행 코드를 이용한 보안 시스템 및 보안 방법 |
JP2009081852A (ja) * | 2007-09-04 | 2009-04-16 | Seiko Epson Corp | ファイル転送システムおよびその方法 |
JP5182701B2 (ja) * | 2008-09-16 | 2013-04-17 | Necエンジニアリング株式会社 | Sipシステム |
JP5115745B2 (ja) * | 2009-01-23 | 2013-01-09 | Necビッグローブ株式会社 | アクセスコントロールシステム、及びアクセスコントロール方法 |
US9503390B2 (en) * | 2011-07-27 | 2016-11-22 | Zte Corporation | System and method for sharing multiple network resources on stand-alone machine |
KR101728417B1 (ko) | 2011-12-15 | 2017-05-04 | 엔트릭스 주식회사 | 클라우드 스트리밍 기반 서비스메뉴 제공 시스템 및 그 방법 |
JP6092546B2 (ja) * | 2012-08-22 | 2017-03-08 | キヤノン株式会社 | データ配信システムおよびその制御方法 |
JP5801269B2 (ja) * | 2012-09-14 | 2015-10-28 | 株式会社 日立産業制御ソリューションズ | 医用装置制御システムおよび医用装置制御サーバ |
JP2016220103A (ja) * | 2015-05-22 | 2016-12-22 | 三菱電機株式会社 | 通信システム、配信装置及び操作装置 |
US11616719B2 (en) * | 2015-10-23 | 2023-03-28 | Netflix, Inc | Techniques for determining client-side effects of server-side behavior using canary analysis |
CN110324163B (zh) * | 2018-03-29 | 2020-11-17 | 华为技术有限公司 | 一种数据传输的方法及相关装置 |
JP7084197B2 (ja) * | 2018-04-18 | 2022-06-14 | 三菱電機インフォメーションネットワーク株式会社 | データ配信装置、データ配信方法及びデータ配信プログラム |
JP7214517B2 (ja) * | 2018-11-26 | 2023-01-30 | キヤノン株式会社 | システム、管理装置、方法及びプログラム |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002099831A (ja) * | 2000-09-21 | 2002-04-05 | Association For Electric Home Appliances | 家電リサイクル券管理システム及び家電リサイクル券管理方法 |
JP2002143566A (ja) * | 2000-11-07 | 2002-05-21 | Namco Ltd | ゲーム用のシステムおよび情報記憶媒体 |
JP2002149534A (ja) * | 2000-11-09 | 2002-05-24 | Uniden Corp | プロキシ・サーバ及びこれを用いた通信方法並びに記録媒体 |
JP2003058499A (ja) * | 2001-08-10 | 2003-02-28 | Fujitsu Ltd | 負荷を管理するサーバ、プログラム、および媒体 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6134584A (en) * | 1997-11-21 | 2000-10-17 | International Business Machines Corporation | Method for accessing and retrieving information from a source maintained by a network server |
US8756342B1 (en) * | 2000-02-07 | 2014-06-17 | Parallel Networks, Llc | Method and apparatus for content synchronization |
US6832239B1 (en) * | 2000-07-07 | 2004-12-14 | International Business Machines Corporation | Systems for managing network resources |
JP4307747B2 (ja) * | 2001-01-25 | 2009-08-05 | インターナショナル・ビジネス・マシーンズ・コーポレーション | 接続受付システム、受付サーバ、クライアント端末、接続受付管理方法、記憶媒体、コンピュータプログラム |
US20020161913A1 (en) * | 2001-04-30 | 2002-10-31 | Manuel Gonzalez | System and method for performing a download |
US20020184369A1 (en) * | 2001-05-31 | 2002-12-05 | Parkinson Steven William | Appointment scheme for redistributing service access |
GB2381424B (en) * | 2001-10-26 | 2005-01-05 | Roke Manor Research | A method of controlling the amount of data transferred between a terminal and a server |
JP3984086B2 (ja) * | 2002-03-27 | 2007-09-26 | 株式会社東芝 | キャッシュサーバ、データ転送装置及びプログラム |
US20030220983A1 (en) * | 2002-05-24 | 2003-11-27 | Waikwan Hui | Method, system, and program for requesting objects to download over a network |
-
2003
- 2003-05-16 JP JP2003138766A patent/JP3829125B2/ja not_active Expired - Fee Related
-
2004
- 2004-05-14 US US10/557,256 patent/US7711833B2/en not_active Expired - Fee Related
- 2004-05-14 CN CNB2004800133718A patent/CN100362505C/zh not_active Expired - Fee Related
- 2004-05-14 WO PCT/JP2004/006541 patent/WO2004102409A1/ja active Application Filing
- 2004-05-14 EP EP04733091A patent/EP1628226A4/en not_active Withdrawn
- 2004-05-14 KR KR1020057021439A patent/KR100745303B1/ko not_active IP Right Cessation
-
2006
- 2006-08-01 HK HK06108544A patent/HK1088408A1/xx not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002099831A (ja) * | 2000-09-21 | 2002-04-05 | Association For Electric Home Appliances | 家電リサイクル券管理システム及び家電リサイクル券管理方法 |
JP2002143566A (ja) * | 2000-11-07 | 2002-05-21 | Namco Ltd | ゲーム用のシステムおよび情報記憶媒体 |
JP2002149534A (ja) * | 2000-11-09 | 2002-05-24 | Uniden Corp | プロキシ・サーバ及びこれを用いた通信方法並びに記録媒体 |
JP2003058499A (ja) * | 2001-08-10 | 2003-02-28 | Fujitsu Ltd | 負荷を管理するサーバ、プログラム、および媒体 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1628226A4 * |
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US20070083654A1 (en) | 2007-04-12 |
CN1791870A (zh) | 2006-06-21 |
US7711833B2 (en) | 2010-05-04 |
CN100362505C (zh) | 2008-01-16 |
EP1628226A1 (en) | 2006-02-22 |
JP2004348176A (ja) | 2004-12-09 |
KR20060015724A (ko) | 2006-02-20 |
KR100745303B1 (ko) | 2007-08-01 |
JP3829125B2 (ja) | 2006-10-04 |
EP1628226A4 (en) | 2010-12-29 |
HK1088408A1 (en) | 2006-11-03 |
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