JP2020003965A - Information processing system and information processing method - Google Patents

Abstract

To provide an information processing system and an information processing method that can prevent an increase of network load even at a situation where a number of information processors needs to acquire data.SOLUTION: An information processing system includes multiple information processing terminals 3 acquiring distribution data built in an information processor and an administrative server 2 storing the distribution data. The administrative server 2 comprises transmission means 22 transmitting the distribution data with multi-cast to at least one information processing terminal 3 among multiple information processing terminals 3. Further, the information processing terminal 3 comprises acquisition means 35 acquiring the distribution data transmitted from the administrative server 2 or other information processing terminals 3 to store and transmission means 33 transmitting the acquired and stored distribution data to another information processing terminal 3 that does not hold the distribution data.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an information processing system and an information processing method for managing data distribution.

  In offices such as corporations, many computers used by employees are used, and each computer is installed with various software such as an operating system. Such software requires updating of an update program with the addition or modification of a function. In recent years, the update program is often distributed to each computer through a network. In addition to the computer, various information processing devices such as printers and communication devices are installed in the office, and software such as firmware for controlling these devices is also updated.

  As described above, since a large number of information processing apparatuses are installed in an office, it becomes difficult to manage software incorporated therein. For this reason, as disclosed in Patent Document 1, a program management system that manages updates of update programs for software installed in each information processing apparatus has been introduced. Specifically, in the program management system described in Patent Document 1, the update program is updated at a timing when the information processing apparatus to be updated is not operating, so that the update program can be surely and efficiently updated. I have.

JP 2010-198630 A

  Here, as described above, when the update program is distributed to each information processing device via the network to perform the update, there is a problem that the network load further increases. For example, immediately after an update program is released, a large number of information processing apparatuses simultaneously download the update program, so that the network load increases. In addition, such a problem is not limited to the case where a large number of information processing apparatuses update an update program, and the large number of information processing apparatuses acquire some data to be incorporated in the large number of information processing apparatuses at substantially the same timing. It can also occur when necessary.

  Therefore, an object of the present invention is to solve the above-mentioned problem that a network load increases in a situation where many information processing devices need to acquire data.

An information processing system according to one embodiment of the present invention includes:
A plurality of information processing terminals for acquiring distribution data incorporated in the information processing apparatus;
A management server that stores the distribution data,
The management server includes a transmission unit that transmits the distribution data by multicast to at least one of the information processing terminals among the plurality of information processing terminals,
The information processing terminal has an acquiring unit that acquires and stores the distribution data transmitted from the management server or another information processing terminal, and holds the distribution data that has been acquired and stored. Propagation means for transmitting to another information processing terminal,
Take the configuration.

In the above information processing system,
The propagation means of the information processing terminal, the distribution data acquired and stored from the management server or another of the information processing terminal, the distribution data of another of the information processing terminals as a preset destination, Transmitting to the information processing terminal that does not hold data,
Take the configuration.

In the above information processing system,
The transmitting means of the management server transmits the distribution data by multicast to the information processing terminal set as a relay device,
The propagation means of the information processing terminal, when the terminal itself is set as the relay device, another distribution of the distribution data acquired and stored from the management server as a preset destination. Send to terminal,
Take the configuration.

In the above information processing system,
The propagation means of the information processing terminal, when its own terminal is set as the relay device, transmits the distribution data to the information processing terminal set as another relay device,
Take the configuration.

In the above information processing system,
The information processing terminal includes a setting unit that sets an acquisition destination of the distribution data,
The acquisition unit of the information processing terminal acquires and stores the distribution data from the management server or another information processing terminal set as the relay device based on the set acquisition destination,
Take the configuration.

In the above information processing system,
The setting unit of the information processing terminal may be configured to obtain the distribution data as the management server, the other information processing terminal set as the relay device, or the information server set as the management server and the relay device. Any of the information processing terminals of the above is selectable,
Take the configuration.

An information processing method according to another aspect of the present invention includes:
A plurality of information processing terminals for acquiring and processing distribution data incorporated in the information processing apparatus;
An information processing method by an information processing system comprising: a management server that stores the distribution data.
The management server transmits the distribution data by multicast to at least one of the information processing terminals among the plurality of information processing terminals,
The information processing terminal obtains and stores the distribution data transmitted from the management server or another information processing terminal, and stores the obtained distribution data in another form that does not hold the distribution data. Transmitting to the information processing terminal,
Take the configuration.

In the above information processing method,
The management server transmits the distribution data by multicast to the information processing terminal set as a relay device,
The information processing terminal set as the relay device transmits the distribution data acquired and stored from the management server to another information processing terminal serving as a preset destination,
Further, the information processing terminal acquires and stores the distribution data transmitted from the other information processing device set as the relay device, and retains the acquired and stored distribution data. Not yet transmitting to another information processing terminal,
Take the configuration.

  With the configuration described above, the present invention suppresses a large number of information processing apparatuses from acquiring distribution data from the management server at substantially the same timing, thereby suppressing an increase in network load. .

FIG. 1 is a block diagram illustrating a configuration of an entire information processing system according to a first exemplary embodiment of the present invention. FIG. 2 is a diagram illustrating configurations of a management server and a user terminal disclosed in FIG. 1. FIG. 2 is a diagram illustrating a setting screen displayed on the user terminal disclosed in FIG. 1. FIG. 4 is a diagram illustrating an example of an operation at the time of data distribution in the information processing system disclosed in FIG. 1. FIG. 4 is a diagram illustrating an example of an operation at the time of data distribution in the information processing system disclosed in FIG. 1.

<First embodiment>
A first embodiment of the present invention will be described with reference to FIGS. 1 to 3 are diagrams for explaining the configuration of the information processing system. 4 and 5 are diagrams for explaining the operation of the information processing system.

[Constitution]
FIG. 1 shows the overall configuration of an information processing system according to the present invention. As shown in this figure, the information processing system includes a data server 1, a management server 2, and a plurality of user terminals 3 connected via networks N1 and N2. For example, in the present embodiment, it is assumed that the management server 2 and the user terminal 3 are installed in a company and are connected via a wired or wireless network N2 such as an intranet. The management server 2 and the data server 1 are connected via a network N1 such as a public network such as the Internet.

  Here, the user terminal 3 is an information processing terminal operated by an employee of a company, and has installed therein various software such as an operating system. Such software requires an update of an update program according to the addition or modification of a function. Such an update program is provided from the data server 1. Then, the update program is distributed from the data server 1 to the management server 2 in the company, and is distributed to each user terminal 3 in the company by the management server 2 and is incorporated in each user terminal 3. Hereinafter, the configuration of each device will be described in detail.

  The data server 1 is an information processing device provided with an arithmetic device and a storage device installed on a network N1 such as the Internet. The data server 1 stores distribution data, which is a software update program incorporated in the user terminal 3, and has a function of transmitting the distribution data to the information processing apparatus that has requested the distribution data. For example, the data server 1 is an information processing device managed by a software developer.

  The management server 2 is an information processing device provided with a computing device and a storage device installed in a predetermined company. Then, as shown in FIG. 2, the management server 2 includes a management unit 21 and a transmission unit 22 constructed by executing a program on the arithmetic device. In addition, the management server 2 includes a management data storage unit 23 and a distribution data storage unit 24 formed in a storage device.

  The management unit 21 manages the configuration and status of the user terminal 3 installed in the company. For example, the management unit 21 associates an IP address unique to the user terminal 3 with terminal information such as a group to which the user terminal 3 belongs, a user name, a login password, hardware information constituting the user terminal 3, installed Manages management data including software information, etc. For example, the management unit 21 stores and manages management data regarding the user terminal 3 in the management data storage unit 23.

  Further, the management unit 21 has a function of managing the state of software installed in the user terminal 3 and controlling a process of installing software on the user terminal 3. Therefore, the management unit 21 first refers to the management data, refers to the software installed in the user terminal 3, and determines whether or not an update program that requires updating is distributed to the software. Access server 1 and check. Then, when distribution data, which is an update program requiring an update, is distributed, the distribution data is acquired from the data server 1 and stored in the distribution data storage unit 24. Note that the distribution data acquisition process by the management unit 21 may be automatically performed by the management unit 21 or may be performed in response to an operation by an administrator.

  Then, the management unit 21 outputs an operation screen for managing the state of the software to the administrator. Then, the management unit 21 receives a distribution command for transmitting the distribution data stored in the distribution data storage unit 24 to the user terminal 3 from the administrator via the operation screen. The distribution instruction includes, for example, information such as designation of distribution data corresponding to an update program that needs to be updated in the user terminal 3, designation of the user terminal 3 to be updated, designation of distribution date and time of the distribution data, and the like. Of these, the user terminal 3 to be updated may be specified by an individual user terminal 3 or may be specified by a group corresponding to the affiliation of the employee operating the user terminal 3 or by the installation position of the user terminal 3. The designation of a group or the designation of all the managed user terminals 3 may be performed.

  The transmission unit 22 (transmission means) transmits the distribution data stored in the distribution data storage unit 24 to the user terminal 3 by multicast in response to the distribution command received by the management unit 21 as described above. I do. At this time, as described above, when the user terminal 3 is designated by the distribution command, the user terminal 3 transmits the data by multicast so that the user terminal 3 can receive the distribution data. As an example, the transmission unit 22 transmits the distribution data to a preset multicast address for a group or a multicast address for all terminals as a distribution destination. As a result, for the multicast transmission, as described later, only the user terminal 3 for which distribution data acquisition is set to acquire distribution data by the distribution data acquisition setting, that is, the management server is set as the acquisition destination. Only the responding user terminal 3 responds, and only the responding user terminal 3 acquires distribution data. As a result, the transmission unit 22 can transmit the distribution data to a plurality of user terminals 3 set to acquire the distribution data by the multicast in one multicast transmission.

  The transmission target of the transmission unit 22 includes the user terminal 3 set as the mirror terminal 3a (relay terminal), as described later. For example, when transmitting the distribution data to a plurality of user terminals 3 by multicast, the transmission unit 22 distributes the distribution data only to the mirror terminal 3a and the user terminal 3 which have responded to the transmission. I do. The mirror terminal 3a is, for example, an information processing device that is set in advance to operate as a “mirror terminal” by an administrator or the like, as described later. The mirror terminal 3a that acquires the distribution data transmitted from the management server 2 as described above is a terminal whose management server is set as the acquisition destination in the distribution data acquisition setting.

  The user terminal 3 is an information processing device provided with a computing device and a storage device installed in a predetermined company. Then, as shown in FIG. 2, the user terminal 3 includes a setting unit 31, an acquisition unit 32, a propagation unit 33, and a built-in unit 34 constructed by executing a program on the arithmetic device. In addition, the user terminal 3 includes a distribution data storage unit 35 formed in the storage device.

  The setting unit 31 (setting means) displays a setting screen 4 as shown in FIG. 3 on the display screen of the user terminal 3, and sets an information processing apparatus from which the user terminal 3 itself obtains distribution data. The input is accepted, and the setting contents are stored and held in the terminal itself. For example, the setting screen 4 has an input field for designating a “connection destination server” indicated by reference numeral 41, and an access address to the management server 2 which is a base for distributing distribution data is input to the input field. .

  Further, the setting screen has a selection field for selecting “perform distributed distribution of files” as indicated by reference numeral 42. This is a column selected when the user terminal 3 itself receives distribution data and wishes to distribute the received distribution data to other user terminals 3. Then, when “perform distributed distribution of files” indicated by reference numeral 42 is selected, the setting unit 31 also accepts a setting of an acquisition destination of distribution data. As a source of the distribution data, one of “acquire only from multicast” indicated by reference numeral 43 and “use a mirror computer” indicated by reference numeral 44 can be selected.

  “Acquire a file only from a multicast” indicated by a reference numeral 43 indicates that the distribution data is acquired from the management server 2. In this case, the user terminal 3 acquires the distribution data in response to the multicast transmission of the management server 2 only when the distribution data is transmitted by multicast from the management server 2 as described above. Further, “using a mirror computer” indicated by reference numeral 44 indicates that the distribution data is obtained from the mirror terminal 3a, which is another user terminal 3. In this case, the user terminal 3 acquires distribution data transmitted not directly from the management server 2 but from another user terminal 3 set as the mirror terminal 3a. Therefore, when “use mirror computer” indicated by reference numeral 44 is selected, a mirror computer setting screen (not shown) displayed by selecting “mirror computer setting” indicated by reference numeral 44a is displayed. , The identification information and the address information of the mirror terminal 3a as the acquisition destination are set.

  When “use mirror computer” indicated by reference numeral 44 is selected, it is also possible to select not only the mirror terminal 3a but also the management server 2 as a distribution data acquisition destination. . For example, when “mirror computer and multicast” indicated by reference numeral 45 is selected, a case where distribution data is acquired from the mirror terminal 3a and a case where multicast data transmitted from the management server 2 are acquired are both used. Is set. In this case, it is possible to additionally select “obtain from the server when there is no response” indicated by reference numeral 46. For example, when the user terminal 3 requests the distribution data from the mirror terminal 3a and the mirror terminal 3a does not respond, the user terminal 3 is set to be able to acquire the distribution data from the management server 2. Is done.

  The acquisition unit 32 (acquisition unit) performs a process of acquiring distribution data according to the setting content of the distribution data acquisition destination input to the setting unit 31 described above. For example, in the case where “acquire files only from multicast” indicated by reference numeral 43 in FIG. 3 is set, when the user terminal 3 receives that the distribution data has been transmitted from the management server 2 by multicast, the user terminal 3 receives such information. The distribution data is received in response to the multicast transmission, and stored in the distribution data storage unit 35 of the own terminal. On the other hand, when “use mirror computer” indicated by reference numeral 44 in FIG. 3 is set and “mirror computer and multicast” indicated by reference numeral 45 is not selected, the acquisition unit 32 Even if the distribution data is transmitted by multicast, it does not respond to the multicast transmission and does not receive the distribution data. In this case, the acquisition unit 32 requests distribution data to the mirror terminal 3a set in the “mirror computer setting” indicated by the reference numeral 44a, and when the distribution data is transmitted from the mirror terminal 3a, The distribution data is received from the mirror terminal 3a and stored in the distribution data storage unit 35.

  In addition, when “use mirror computer” indicated by reference numeral 44 is set and “mirror computer and multicast” indicated by reference numeral 45 is selected, the acquisition unit 32 acquires the management server 2 as described above. The distribution data is received from any one of them, and the distribution data is received from the mirror terminal 3a.

  Regardless of the setting, the acquisition unit 32 may acquire distribution data transmitted from another user terminal 3 by the propagation unit 33 described later and store the distribution data in the distribution data storage unit 35 of the own terminal. it can.

  The propagation unit 33 (propagation unit) transmits the distribution data that the user terminal 3 has already received and stored in the distribution data storage unit 35 to another user terminal 3. At this time, the propagation unit 33 communicates, for example, directly or via a communication device with another user terminal 3 in a preset group to which the own terminal belongs, and performs communication with the user. Confirm whether or not. That is, in this case, another user terminal 3 in the same group is set as a propagation destination (transmission destination) of the distribution data. Then, the propagation unit 33, for example, inquires of other user terminals 3 existing around it for the presence or absence of specific distribution data and receives a response, or receives a request for specific distribution data from another user terminal 3. Thus, another user terminal 3 that does not hold the specific distribution data is specified. Then, the propagation unit 33 transmits the distribution data stored in the own terminal to another user terminal holding the specific distribution data. As a result, the acquisition unit 32 of the other user terminal 3 acquires the distribution data from the user terminal 3 that has transmitted the distribution data as described above, and stores the distribution data in the distribution data storage unit 35 of the own terminal. Can be.

  As described above, the incorporation unit 34 processes the distribution data acquired from the management server 2, the mirror terminal 3a, or another user terminal 3 and stored in the distribution data storage unit 35 of the own terminal. For example, when the distribution data is an update program for software incorporated in the user terminal 3, the update program is executed by executing the update program on the terminal itself.

  Here, the configuration of the mirror terminal 3a will be described. In the present embodiment, the case where the mirror terminal 3a is a specific information processing terminal among the user terminals 3 described above is exemplified. However, the mirror terminal 3a may be any information processing device. May be an information processing device that does not need to incorporate the information.

  The mirror terminal 3a in the present embodiment has the same configuration as the user terminal 3 described with reference to FIG. The mirror terminal 3a functions as the mirror terminal 3a, for example, when the setting unit 31 sets the mirror terminal 3a or sets the mirror server 3a from the management server 2.

  The setting unit 31 of the mirror terminal 3a is a source of distribution data, similarly to the user terminal 3 described above. That is, the setting unit 31 sets the distribution data acquisition destination (acquisition method) by the mirror terminal 3a to one of “multicast”, “mirror computer”, and “mirror computer and multicast”. However, in the mirror terminal 3a, it is not always necessary to set the acquisition destination of the distribution data.

  Further, the acquisition unit 32 of the mirror terminal 3a receives the distribution data transmitted by multicast from the management server 2 and stores the distribution data in the distribution data storage unit 35 of the terminal 3a itself, similarly to the user terminal 3 described above. Alternatively, the acquisition unit 32 of the mirror terminal 3a receives the distribution data transmitted from the other mirror terminal 3a, and stores the distribution data in the distribution data storage unit 35 of the own terminal 3a.

  Further, the propagation unit 33 of the mirror terminal 3a transmits the distribution data already received by the own terminal and stored in the distribution data storage unit 35 to another mirror terminal 3a or the user terminal 3. At this time, the propagation unit 33 of the mirror terminal 3a transmits the distribution data to, for example, another user terminal 3 in a preset group to which the own terminal belongs or a mirror terminal 3a in another group set as a transmission destination in advance. Is sent. As described above, the propagation unit 33 transmits the distribution data after confirming that the transmission destination user terminal 3 and the mirror terminal 3a do not hold the distribution data to be transmitted.

  When the software corresponding to the distribution data acquired and stored in the own terminal is installed in the own terminal, the installing unit 34 of the mirror terminal 3a installs the update program which is the distribution data. However, the mirror terminal 3a does not necessarily need to install the distribution data on its own terminal, but acquires the distribution data as described above and relays the distribution data to another mirror terminal 3a or the user terminal 3 only. It may function as a device.

[motion]
Next, the operation of the above-described information processing system will be described with reference to FIGS. FIG. 4 and FIG. 5 are diagrams showing a state of transmission of distribution data.

  In this example, the user terminals 3 (including the mirror terminal 3a) managed by the management server 2 are grouped into a plurality of groups G1, G2, G3 as shown in FIG. Also do not belong. Then, as the user terminal 3, a terminal that is “first setting” in which “acquire file only from multicast” indicated by reference numeral 43 is set by the setting unit 31 described above, and a terminal indicated by reference numeral 44 “ "Use mirror computer" is set as the "second setting" terminal, and "Use mirror computer" indicated by reference numeral 44 and "Mirror computer and multicast" indicated by reference numeral 45 are set. There is a terminal that is a “third setting”.

  First, the management server 2 acquires distribution data from the data server 1 and stores it. Then, the management server 2 transmits distribution data by multicast in response to a distribution command from the administrator. In this case, multicast transmission of distribution data is performed for all terminals.

  In the user terminal 3, the setting unit 31 previously sets the "first setting" in which "acquire files only from multicast" is set and the "third setting" in which "mirror computer multicast" is set. Only in the case of “setting”, the distribution server receives the distribution data in response to the multicast transmission from the management server 2 and stores it in the distribution data storage unit 35 of its own terminal. Similarly, the mirror terminal 3a that is the “first setting” or the “third setting” receives the distribution data in response to the multicast transmission from the management server 2 and stores the distribution data in the distribution data storage unit 35 of the terminal itself. Remember. Note that, even with the “first setting” or “third setting”, the user terminal 3 that has not been activated does not receive distribution data. Thereby, as indicated by the arrow in FIG. 4, only some of the user terminals 3 and the mirror terminals 3a receive the distribution data by multicast transmission from the management server 2.

  Thereafter, as described above, the user terminal 3 that has obtained and stored the distribution data from the management server 2 communicates with another user terminal 3 in a preset group to which the own terminal belongs and communicates with the other user. The distribution data is transmitted to the terminal 3. At this time, the user terminal 3 communicates with the other user terminals 3 to confirm that the other user terminals 3 do not hold the distribution data, and distributes the distribution data only to the other user terminals 3. Send Then, the other user terminals 3 that have obtained the distribution data from the user terminal 3 similarly transmit the distribution data to another user terminal 3 that does not hold the distribution data. Thereby, for example, as shown by the arrow in the group G1 in FIG. 5, the distribution data is propagated to each user terminal 3.

  Further, as described above, the mirror terminal 3a that acquires and stores the distribution data from the management server 2 transmits the distribution data to another mirror terminal 3a or the user terminal 3. At this time, the mirror terminal 3a communicates with the other mirror terminal 3a and the user terminal 3, and transmits the distribution data only to the other mirror terminal 3a and the user terminal 3 that do not hold the distribution data. For example, as shown in FIG. 5, a mirror terminal 3a that does not belong to any of the groups G1, G2, and G3 transmits the distribution data to another mirror terminal 3a that belongs to the groups G2 and G3 set as a destination in advance. I do. Note that the mirror terminals 3a belonging to the groups G2 and G3 may be in the “second setting” or the “third setting” for acquiring distribution data from the “mirror computer”.

  As described above, the mirror terminals 3a belonging to the groups G2 and G3 that have acquired and stored the distribution data transmit the distribution data to the other user terminals 3 in the preset group to which the own terminal belongs. I do. At this time, if the user terminal 3 is in the “second setting” where “use mirror computer” is selected, or the “third setting” where “mirror computer and multicast” is selected When it is running, the distribution data is acquired in response to the transmission from the mirror terminal 3a. Note that the user terminal 3 that has obtained the distribution data from the mirror terminal 3a in this manner also propagates the distribution data to another user terminal 3 as described above.

  After that, the user terminal 3 and the mirror terminal 3a process the obtained distribution data on their own terminal. For example, when the distribution data is an update program for software incorporated in the user terminal 3, the update program is executed by executing the update program on the terminal itself.

  As described above, in the present invention, first, distribution data is transmitted from the management server 2 to some of the user terminals 3 and the mirror terminals 3a by multicast, and thereafter, the user terminal 3 and the mirror terminals 3a transmit the other user terminals And the distribution data is transmitted to the other mirror terminal 3a. That is, in the present invention, the distribution data is not transmitted from the management server 2 to all the user terminals 3 at once, but is transmitted so as to gradually propagate through the user terminal 3 and the mirror terminal 3a. You. For this reason, it is possible to suppress data transmission on all communication paths at the same time, and to suppress a network load. At the same time, it is possible to suppress the load concentration of the device that performs distribution data distribution processing such as the management server 2.

  Here, the above-described program is stored in a storage device or is recorded on a computer-readable recording medium. For example, the recording medium is a portable medium such as a flexible disk, an optical disk, a magneto-optical disk, and a semiconductor memory.

  As described above, the present invention has been described with reference to the above embodiments and the like, but the present invention is not limited to the above embodiments. Various changes that can be understood by those skilled in the art can be made to the configuration and details of the present invention within the scope of the present invention.

1 data server 2 management server 21 management unit 22 transmission unit 23 management data storage unit 24 distribution data storage unit 3 user terminal 31 setting unit 32 acquisition unit 33 propagation unit 34 incorporation unit 35 distribution data storage unit 3a mirror terminal 4 setting screen

Claims (8)

A plurality of information processing terminals for acquiring distribution data incorporated in the information processing apparatus;
A management server that stores the distribution data,
The management server includes a transmission unit that transmits the distribution data by multicast to at least one of the information processing terminals among the plurality of information processing terminals,
The information processing terminal has an acquiring unit that acquires and stores the distribution data transmitted from the management server or another information processing terminal, and holds the distribution data that has been acquired and stored. Propagation means for transmitting to another information processing terminal,
Information processing system. The information processing system according to claim 1, wherein
The propagation means of the information processing terminal, the distribution data acquired and stored from the management server or another of the information processing terminal, the distribution data of another of the information processing terminals as a preset destination, Transmitting to the information processing terminal that does not hold data,
Information processing system. The information processing system according to claim 1 or 2,
The transmitting means of the management server transmits the distribution data by multicast to the information processing terminal set as a relay device,
The propagation means of the information processing terminal, when the terminal itself is set as the relay device, another distribution of the distribution data acquired and stored from the management server as a preset destination. Send to terminal,
Information processing system. The information processing system according to claim 3, wherein
The propagation means of the information processing terminal, when its own terminal is set as the relay device, transmits the distribution data to the information processing terminal set as another relay device,
Information processing system. The information processing system according to claim 3 or 4,
The information processing terminal includes a setting unit that sets an acquisition destination of the distribution data,
The acquisition unit of the information processing terminal acquires and stores the distribution data from the management server or another information processing terminal set as the relay device based on the set acquisition destination,
Information processing system. The information processing system according to claim 5, wherein
The setting unit of the information processing terminal may be configured to obtain the distribution data as the management server, the other information processing terminal set as the relay device, or the information server set as the management server and the relay device. Any of the information processing terminals of the above is selectable,
Information processing system. A plurality of information processing terminals for acquiring and processing distribution data incorporated in the information processing apparatus;
An information processing method by an information processing system comprising: a management server that stores the distribution data.
The management server transmits the distribution data by multicast to at least one of the information processing terminals among the plurality of information processing terminals,
The information processing terminal obtains and stores the distribution data transmitted from the management server or another information processing terminal, and stores the obtained distribution data in another form that does not hold the distribution data. Transmitting to the information processing terminal,
Information processing method. The information processing system according to claim 7, wherein
The management server transmits the distribution data by multicast to the information processing terminal set as a relay device,
The information processing terminal set as the relay device transmits the distribution data acquired and stored from the management server to another information processing terminal serving as a preset destination,
Further, the information processing terminal acquires and stores the distribution data transmitted from the other information processing device set as the relay device, and retains the acquired distribution data stored therein. Not yet transmitting to another information processing terminal,
Information processing system.

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