Server for managing load, program and medium

• US 20030033359A1
• Filed: 03/13/2002
• Published: 02/13/2003
• Est. Priority Date: 08/10/2001
• Status: Abandoned Application

• Current Assignee: Fujitsu Limited
• Original Assignee: Fujitsu Limited
• Inventors: Asoh, Youichirou
• Application Number:
  US10/095,437
• Publication Number:
  US 20030033359A1
• Time in Patent Office: Days
• US Class Current: 709/203
• CPC Class Codes: H04L 47/11 Identifying congestion
• CPC Class Codes: H04L 47/17 Interaction among intermediate nodes, e.g. hop by hop
• CPC Class Codes: H04L 47/19 at layers above the network layer network arrangements for networked applications for scheduling or organising the servicing of application requests H04L67/60
• CPC Class Codes: H04L 47/28 in relation to timing considerations
• CPC Class Codes: H04L 47/32 by discarding or delaying data units, e.g. packets or frames
• CPC Class Codes: H04L 67/1001 for accessing one among a plurality of replicated servers
• CPC Class Codes: H04L 67/10015 Access to distributed or replicated servers, e.g. using brokers
• CPC Class Codes: H04L 67/1008 based on parameters of servers, e.g. available memory or workload monitoring of computer activity G06F11/30
• CPC Class Codes: H04L 67/1012 based on compliance of requirements or conditions with available server resources
• CPC Class Codes: H04L 67/14 Session management for real-time applications in data packet communications networks H04L65/1066
• CPC Class Codes: H04L 67/56 Provisioning of proxy services store-and-forward switching systems in data switching networks H04L12/54
• CPC Class Codes: H04L 67/564 Enhancement of application control based on intercepted application data
• CPC Class Codes: H04L 67/62 Establishing a time schedule for servicing the requests
• CPC Class Codes: H04L 69/28 Timers or timing mechanisms used in protocols
• CPC Class Codes: H04L 69/329 in the application layer [OSI layer 7]
• CPC Class Codes: H04L 9/40 Network security protocols

Abstract

A server providing a function to a terminal on a network comprises a communication module receiving a connection request from a terminal (A-E) on a network, a processing unit (1) providing a function to the terminal (A-E) connected, a load judging module (21) judging a load of the processing unit, a reservation module reserving a connection of a terminal (A-E) of which a connection is rejected, and a control module (22) controlling the connection of the terminal (A-E). The control module (22), when the load of the processing unit (1) exceeds a predetermined range, rejects the connection request but reserves the connection of the terminal (A-E) in the reservation module, and, when the load of the processing unit falls within the predetermined range, connects the terminal (A-E) with reservation already made.

Claims

1. A server comprising:

a communication module receiving a connection request from a terminal on a network;

a processing unit providing a function to said terminal connected;

a load judging module judging a load of said processing unit;

a reservation module reserving a connection of a terminal of which a connection is rejected; and

a control module controlling the connection of said terminal,

wherein said control module, when the load of said processing unit exceeds a predetermined range, rejects the connection request but reserves the connection of said terminal in said reservation module, and, when the load of said processing unit falls within the predetermined range, connects said terminal with reservation already made.

2. A server according to claim 1, wherein said control module gives, in the reservation, a piece of reservation identifying information to said terminal of which the connection has been reserved, gives a piece of permission information to said terminal with the reservation already made in sequence of reservation priorities when the load of said processing unit falls within the predetermined range, and connects said terminal when said terminal given the permission information makes a connection request with the reservation identifying information shown.

3. A server according to claim 2, wherein the permission information contains a piece of authenticating information mapped to the reservation identifying information, and

said control module, when said terminal shows the reservation identifying information and the authenticating information, connects said terminal.

4. A server according to claim 2, further comprising a setting module setting information for specifying a destination to which the permission information is transmitted.

5. A server providing a function to a terminal on a network and communicating a notification related to said terminal to a predetermined communication terminal, comprising:

a communication module receiving a connection request from a terminal on a network;

a processing unit providing a function to said terminal connected;

a load judging module judging a load of said processing unit;

a reservation module reserving a connection of a terminal of which a connection is rejected; and

a control module controlling the connection of said terminal,

wherein said control module, when the load of said processing unit exceeds a predetermined range, rejects the connection request but reserves the connection of said terminal in said reservation module, and, when the load of said processing unit falls within the predetermined range if the connection of said terminal is reserved in said reservation module, gives the permission information indicating a permission of the connection to said communication terminal.

6. A terminal connected to a server on a network and provided with a function from said server, comprising:

a communication module making a connection request to said server;

a recording module recording information; and

a control module controlling the connection to said server,

wherein said control module, when the connection is rejected, receives and records said recording module with a piece of reservation identifying information indicating a reservation of connection, and when making the connection request to said server next time, shows the reservation identifying information.

7. A load management method, executed by a computer, comprising:

receiving a connection request from a terminal on a network;

controlling a processing unit actualizing a predetermined function to provide this function to said terminal connected;

judging a load of said processing unit;

connecting said terminal making the connection request when the load of said processing unit does not exceed a predetermined range;

rejecting, when the load of said processing unit exceeds the predetermined range, the connection request but reserving the connection of said terminal; and

connecting, when the load of said processing unit falls within the predetermined range, said terminal with the reservation already made.

8. A load management method according to claim 7, wherein said reserving the connection involves giving a piece of reservation identifying information to said terminal making the connection request, and

said connecting said terminal includes, when the load of said processing unit falls within the predetermined range, giving a piece of permission information to said terminal with the reservation already made in sequence of reservation priorities, and, when said terminal given the permission information makes a connection request with the reservation identifying information shown, permitting said terminal to be connected.

9. A load management method according to claim 8, wherein the permission information contains a piece of authenticating information mapped to the reservation identifying information, and

said connecting said terminal involves, when said terminal shows the reservation identifying information and the authenticating information, permitting said terminal to be connected.

10. A load management method according to claim 8, further comprising prompting to set information for specifying a destination to which the permission information is transmitted.

11. A load management method of transmitting a notification related to a terminal on a network to a predetermined communication terminal and managing a load on a computer to which said terminal is connected, said method comprising:

receiving a connection request from a terminal on a network;

controlling a processing unit actualizing a predetermined function to provide this function to said terminal connected;

judging a load of said processing unit;

connecting said terminal making the connection request when the load of said processing unit does not exceed a predetermined range;

rejecting, when the load of said processing unit exceeds the predetermined range, the connection request but reserving the connection of said terminal; and

giving, when the load of said processing unit falls within the predetermined range, a piece of permission information indicating a connection permission to said communication terminal.

12. A method of making a terminal on a network connect to a server and making said terminal receive a function provided from said server, said method comprising:

making said server on the network to establish a connection;

receiving a piece of reservation identifying information indicating a reservation of the connection when the connection is rejected; and

making said terminal show the reservation identifying information when making the connection request to said server next time.

13. A readable-by-computer recording medium recorded with a program, executed by a computer, comprising:

receiving a connection request from a terminal on a network;

controlling a processing unit actualizing a predetermined function to provide this function to said terminal connected;

judging a load of said processing unit;

connecting said terminal making the connection request when the load of said processing unit does not exceed a predetermined range;

rejecting, when the load of said processing unit exceeds the predetermined range, the connection request but reserving the connection of said terminal; and

connecting, when the load of said processing unit falls within the predetermined range, said terminal with the reservation already made.

14. A readable-by-computer recording medium recorded with a program according to claim 13, wherein said reserving the connection involves giving a piece of reservation identifying information to said terminal making the connection request, and

said connecting said terminal includes, when the load of said processing unit falls within the predetermined range, giving a piece of permission information to said terminal with the reservation already made in sequence of reservation priorities, and, when said terminal given the permission information makes a connection request with the reservation identifying information shown, permitting said terminal to be connected.

15. A readable-by-computer recording medium recorded with a program according to claim 14, wherein the permission information contains a piece of authenticating information mapped to the reservation identifying information, and

said connecting said terminal involves, when said terminal shows the reservation identifying information and the authenticating information, permitting said terminal to be connected.

16. A readable-by-computer recording medium recorded with a program according to claim 14, further comprising prompting to set information for specifying a destination to which the permission information is transmitted.

17. A readable-by-computer recording medium recorded with a program executed by a computer to transmit a notification related to a terminal on a network to a predetermined communication terminal and to manage a load on a computer to which said terminal is connected or a load on other computer, said program comprising:

receiving a connection request from a terminal on a network;

controlling a processing unit actualizing a predetermined function to provide this function to said terminal connected;

judging a load of said processing unit;

connecting said terminal making the connection request when the load of said processing unit does not exceed a predetermined range;

rejecting, when the load of said processing unit exceeds the predetermined range, the connection request but reserving the connection of said terminal; and

giving, when the load of said processing unit falls within the predetermined range, a piece of permission information indicating a connection permission to said communication terminal.

18. A readable-by-computer recording medium recorded with a program for making a terminal on a network connect to a server and making said terminal receive a function provided from said server, said program comprising:

requesting said server on the network to establish a connection;

receiving apiece of reservation identifying information indicating a reservation of the connection when the connection is rejected; and

showing the reservation identifying information when making the connection request to said server next time.