JPH09160857A - Distributed computer device and its data access system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a distributed computer device and its data access system which has excellent operability and maintenance performance for data management by facilitating the access to various kinds of data to be used in a distributed data management. SOLUTION: The distributed computer device 1 is provided with plural server computers 3 being accessable in terms of transmission from a client computer 2 via a network 4. Then, the server computers 3 are provided with a user information storage part 5 storing user information, a data location information storage part 6 preserving location information, etc., of data on the networks 4 distributed to every user and a data managing part 8 executing management such as the display, generation and erasion, etc., of information which is stored in the data location information storage part 6. The client computer 2 is provided with a display part 2b where data location information, etc., is displayed and a data access part 9 performing access to data which is selected by the display part 2b.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a distributed computer apparatus that includes a plurality of server computers that can be transparently accessed from a client computer via a network to manage data, and a data access method thereof.

[0002]

2. Description of the Related Art In recent years, in distributed computer systems, various data locations are dispersed due to the high performance and high performance of the distributed data access system and the remarkable increase in the data storage capacity, and the data management system becomes extremely complicated. It is becoming.

A client / server model using a conventional distributed data management system will be described below. FIG. 7 is a block diagram showing the configuration of a conventional distributed computer device. Reference numeral 21 is a conventional distributed computer device, 22 is a client computer that executes a user interface with a user and an application, and includes an input unit 22a for inputting data and commands, and a display unit 22b for displaying data and the like. . A server computer 23 stores data and has a data management system, and includes a database unit 23a and a data management unit 23b. 24 is a plurality of client computers 2
A network that connects two and a plurality of server computers 23 to enable data transmission and reception.

The distributed data access method of the conventional distributed computer system having the above-mentioned structure will be described below. To search for desired data from the server computer 23 on the network 24 by the user of the client computer 22, first,
Determine the target server computer on the network.
Next, after connecting to the target server computer, accessible data on the server computer is selected from a list or the like to access the target data.

[0005]

In this distributed computer system, as the amount of data increases and the data is widely distributed on the network, the user cannot store the location of the data one by one, and the purpose is The search process for accessing the data is complicated and time-consuming, and there are cases where the data cannot be accessed, and improvement in operability of data management has been demanded.

The present invention relates to distributed data management,
It is possible to easily access the data to be used for various distributed data, and a distributed computer device with excellent operability and maintainability of data management, and excellent operability and maintainability of data management. Another object of the present invention is to provide a data access method for distributed computer equipment.

[0007]

In order to solve this problem, the present invention is a distributed computer device comprising a plurality of server computers that can be transparently accessed from a client computer via a network. At least one of the above is a user information storage unit that stores user information, and data that stores a record having a data name and location information of data on a network that is dispersed for each user who uses a client computer. The client computer includes a location information storage unit and a data management unit that manages display, creation, deletion, etc. of the records stored in the data location information storage unit.
It is configured to include a display unit for displaying information of data stored in the data location information storage unit, and a data access unit for accessing the data by selecting the data displayed on the display unit. is there.

As a result, when the data is distributed in a complex and diversified manner on the network by the distributed data access method, the location of the data can be easily accessed to the target data for each user. It is possible to remarkably improve the operability and maintainability of data management of the type computer device.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A distributed computer device according to claim 1 of the present invention is a distributed computer device provided with a plurality of server computers transparently accessible from a client computer through a network, At least one of the server computers stores a user information storage unit that stores user information and a record having a data name and location information of data on a network distributed for each user who uses the client computer. The client computer is stored in the data location information storage unit, and the data location information storage unit and a data management unit that manages display, creation, deletion, etc. of the records stored in the data location information storage unit. It is possible to select the display part that displays data information and the data displayed on the display part. The data access unit that accesses the data is provided, and even if the data required by the user is dispersed on the network, the location of the data can be easily set to the target data for each user. Can be accessed, and the operability and maintainability of data management of the distributed computer device can be significantly improved. Furthermore, by managing the data location information storage unit on the network for each user and saving it on the server computer side to which the user first connects (logs in), the client computer used by the user is changed. Even in such a case, the access information of the same data can always be provided to the user, and the maintainability can be improved.

According to a second aspect of the present invention, in the distributed computer system according to the first aspect, the user information storage unit has a record for recording a data name, location information, etc. for data newly used by each user. It is equipped with a configuration that has a location information automatic registration flag that specifies whether or not to automatically add to the data location information storage unit, and the location information of newly used data can be automatically recorded in a record. It has the expected effect and can improve the operability.

According to a third aspect of the present invention, in the distributed computer system according to the first or second aspect, the user information storage section sets a location information retention period item for setting a retention period of data for each record of each user. When a certain data is not accessed for a predetermined period, the record is automatically deleted, so that the data amount is prevented from increasing unilaterally and the maintenance of the data management is automated. Has the effect of.

A distributed data access method according to a fourth aspect is a distributed access method of a distributed computer device in which a client computer can transparently access a server computer through a network, and a user who uses the client computer. A record is stored that has the data name and location information of the data distributed on each network, and the stored records are displayed, created, and deleted, and the data is accessed according to the record information. Even if the data required by the user is dispersed on the network, it is possible to easily access the desired data for each user without having to re-conscious of the location of the data. And can significantly improve the operability of the distributed computer system. .

Hereinafter, an embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIG. (Embodiment 1) FIG. 1 is a block diagram showing a configuration of a distributed computer device according to an embodiment of the present invention. Reference numeral 1 is a distributed computer apparatus according to an embodiment of the present invention, 2 is a client computer, and an input unit 2a for inputting data and commands and the location information of data stored in a data location information storage unit 6 described later Is provided with a display unit 2b. Reference numeral 3 denotes a server computer that has a database and manages data. Reference numeral 4 denotes a network that connects the client computer 2 and the server computer 3 so that the client computer 2 can access a plurality of server computers 3. Further, in the server computer 3, 5 is a user information storage unit for storing user information, and 6 is a record having a data name of network data distributed for each user who uses the client computer and a location information. A data location information storage unit to be stored, 7 is a database unit that stores data, 8 is a data management unit that manages display, creation, deletion, etc. of the records stored in the data location information storage unit 5. The information on the data stored in the storage unit 6 is sent to the client computer 2 and displayed on the display unit 2b. In the client computer 2, 9 is a data access unit for accessing the target data by selecting the data displayed on the display unit 2b using the input unit 2a.

The data items of the data location information record in the data location information storage unit 6 stored in the server computer 3 of the distributed computer system 1 according to the first embodiment of the present invention configured as above will be described below with reference to FIG. 2 is used for the explanation. FIG. 2A is a configuration diagram of the data items of the record that stores the data location information record of the data location information storage unit, and FIG. 2B is the data of the data location information record stored in the data location information storage unit. It is a block diagram which shows the content of the attached information in an item. In FIG. 2A, each data location information record 11 has a data name 1
2, data type 13, data location information 14 and auxiliary information 15. The data name 12 is an arbitrary name given to target data on the network 4. The data type 13 is information indicating the type of target data such as cabinets, folders, and files.
The data location information 14 is composed of location information and the like indicating location information for accessing data on the network 4. Next, data location information record 1
The contents of the attached information 15 of No. 1 are shown in FIG. The attached information 15 is the user designation flag 15a and the last access date / time 1
5b, access count 15c, display position 15d on the client screen, and the like. User designation flag 15a
Indicates whether or not the user has explicitly specified and stored the location information. When the user designation flag 15a is 1, it is assumed that the user has explicitly designated the location information, and when it is 0, the location information is automatically provided by the data management system when the user accesses the data. Indicates that the data is registered as. When the user designation flag 15a is 0, the location information data is automatically deleted from data that has not been accessed for a long time.

Next, the configuration of the user information storage unit 5 stored in the server computer 3 of the distributed computer system according to the embodiment of the present invention will be described below with reference to FIG. FIG. 3 is a configuration diagram showing the contents of the user information in the user information storage unit. User information 16 that uses the server computer 3 is stored in the user information storage unit 5. The user information 16 in the user information storage unit 5 is the user name 16
a, user detailed information 16b, location information automatic registration flag 1
6c, a location information storage period 16d, etc. The location information automatic registration flag 16c is used for the data location information storage unit 6
Whether or not the data location information record 11 of is automatically registered is recorded. The location information storage period 16d records a period in which the automatically registered data location information record 11 is stored. For example, when the location information automatic registration flag 16c is set to 1, when the data on the network 4 is accessed, the location information of the data is automatically registered in the data location information storage unit 6 of the user. When the location information automatic registration flag 16c is set to 0, it is not registered in the data location information storage unit 6 unless the user explicitly registers the location information. Location information retention period 16d
Specifies the period, in days, for storing the data location information record 11 when the user designation flag 15a is designated as 0. The data location information record 11 in which the user designation flag 15a is 0 is automatically deleted by the data management system after the storage period.

The operation of the data access method in the distributed computer system according to the embodiment of the present invention configured as described above will be described below with reference to FIGS. 4 to 6. FIG. 4 is a flow chart showing processing in the data access method of the distributed computer system according to the embodiment of the present invention. 5A is a storage example of the data location information of the user A at a certain point in the data location information storage unit stored on the server computer side, and FIG. 5B shows the information of FIG. 5A. 7 is a display screen diagram displayed on the display unit of the client computer used by user A. FIG. or,
FIG. 6A is a storage example of the data location information of the user A of the data location information storage unit stored on the server computer side after newly accessing the data in the state of FIG. 6B is a display screen diagram in which the information of FIG. 6A is displayed on the display unit of the client computer used by the user A. In this embodiment, three pieces of location information are registered on the server computer 3 (A) side as the location information data of the user A. For data in which the location information data exists, the name of the data is displayed on the screen together with an icon according to the type of the data. Also, a server computer that can be connected to access data for which location information does not exist is displayed as an icon at the bottom of the screen. First, when the user A connects to the server computer 3 (A) from the client computer 2 in order to use the data management system, a screen as shown in FIG. 5 (b) is displayed on the display unit 2b. At this time, general-purpose data or programs that have been used before are displayed. Here, the user A wants to refer to the data “specification XYZ”, but since the location information for directly referencing does not exist on the screen, the data “specification XYZ” present on the server computer 3 (B). For reference, the server computer 3 (B) is selected from the icon and the target data “specification XYZ” is designated from the data list (S11). By this operation, the data management system refers to the information of the user A from the user information of the user information storage unit 5 in the server computer 3 (A) (S12).
When the location information automatic flag of the user A is 1 (1: automatic registration, 0: not automatic registration) (S13), the location information data of the user A is referred to by the determination (S1).
4). The location information of the user A is the server computer 3
It is inspected whether it is registered in (A) (S1
5). If the location of the data is not registered in the server computer 3, such as when the target data is accessed for the first time, the data location information record 11 displays “Specification XY
Z ”will be additionally registered (S17). By this series of processing, the location information data of FIG. 5A stored on the server computer 3 side is changed as shown in FIG. 6A, and the screen on the client computer side is changed accordingly as shown in FIG. 6B. Like After that, the user A can access the “specification XYZ” without being aware of the location on the network 4.

Here, the data location information record 11 of the data location information storage unit 6 can be freely registered, deleted, changed, etc. by the user's operation, and the data name, icon position, etc. Can also be changed. The data location information record 11 on the server computer 3 side is updated each time such a user operation on the client computer 2 occurs. Since the data location information storage unit 6 is stored on the server computer 3 side, each content of the same data location information record 11 can be always displayed even when the client computer 2 used by the user changes.

As described above, according to the present embodiment, even if the data required by the user is distributed in a complex and diverse manner on the network, the desired data can be obtained without being aware of their location. It is possible to easily access, and it is possible to significantly improve the operability and maintainability of distributed data management.

[0019]

As described above, according to the present invention, in distributed data management, it is possible to easily access data to be used for various distributed data, and to improve the operability of data management. The advantageous effect of excellent maintainability is obtained.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a distributed computer device according to a first embodiment of the present invention.

FIG. 2A is a configuration diagram of a data item of a record that stores a data location information record in a data location information storage unit, and FIG. 2B is a diagram illustrating ancillary information of data items of a data location information record stored in the data location information storage unit. Configuration diagram showing the contents

FIG. 3 is a configuration diagram showing contents of user information in a user information storage unit.

FIG. 4 is a flowchart showing a process in the data access method of the distributed computer device according to the embodiment of the present invention.

5A is a diagram showing a storage example of the data location information of a user A at a certain time in the data location information storage unit stored on the server computer side. FIG. 5B is the information of FIG. 5A. A display screen image displayed on the display unit of the client computer used by A

FIG. 6A is a diagram showing a storage example of data location information of a user A of a data location information storage unit stored on the server computer side after newly accessing data in the state of FIG. 5A. b) Display screen diagram in which the information of FIG. 6A is displayed on the display unit of the client computer used by user A

FIG. 7 is a block diagram showing a configuration of a conventional distributed computer device.

[Explanation of symbols]

 1 distributed computer device 2, 22 client computer 2a, 22a input unit 2b, 22b display unit 3,23 server computer 4,24 network 5 user information storage unit 6 data location information storage unit 7, 23a database unit 8, 23b data Management section 9 Data access section 11 Data location information record 12 Data name 13 Data type 14 Data location information 15 Ancillary information 15a User designation flag 15b Last access date and time 15c Number of accesses 15d Display position on client screen 16 User information 16a User Name 16b User detailed information 16c Location information automatic registration flag 16d Location information retention period 21 Conventional distributed computer device

Claims (4)

[Claims] 1. A distributed computer device comprising a plurality of server computers transparently accessible from a client computer via a network, wherein at least one of the server computers stores user information. A user information storage unit, a data location information storage unit for storing records having data names and location information of data on the network distributed for each user who uses the client computer, and the data location information storage Display and create records stored in the department,
A data management unit that manages erasing and the like, the client computer, a display unit for displaying information and the like of the data stored in the data location information storage unit,
And a data access unit for accessing the data by selecting the data displayed on the display unit. 2. The user information storage unit automatically adds, to the data location information storage unit, the record that records a data name, location information, etc. for the data newly used by each user. 2. The distributed computer apparatus according to claim 1, further comprising a location information automatic registration flag that specifies whether or not to do so. 3. The user information storage unit according to claim 1, further comprising a location information retention period item for setting a retention period of the data for each record of each user. Distributed computer equipment. 4. A distributed access method of a distributed computer device capable of transparently accessing a server computer from a client computer via a network, wherein the network is distributed for each user who uses the client computer. A distributed computer characterized by storing a record having a data name of data, location information, etc., managing display, creation, deletion, etc. of the stored record, and accessing the data by the information of the record. Device data access method.