Scheduler, schedule adjusting method, distributed scheduler system and storage medium storing schedule adjusting program

• US 20020029238A1
• Filed: 10/31/2001
• Published: 03/07/2002
• Est. Priority Date: 08/12/1999
• Status: Abandoned Application

• Current Assignee: Fujitsu Limited
• Original Assignee: Fujitsu Limited
• Inventors: Okuhata, Akio
• Application Number:
  US09/984,829
• Publication Number:
  US 20020029238A1
• Time in Patent Office: Days
• US Class Current: 718/101
• CPC Class Codes: G06F 9/4881 Scheduling strategies for dispatcher, e.g. round robin, multi-level priority queues
• CPC Class Codes: G06Q 10/109 Time management, e.g. calendars, reminders, meetings or time accounting

Abstract

A plurality of schedulers is connected to each other through a network, thereby constructing a distributed schedule system. The scheduler processes a scheduler identifier for identifying a user and schedule information constituted by schedule data are stored by broadcasting with respect to another scheduler.

Claims

1. Schedulers for constructing a scheduler system by connecting the schedulers through a network, wherein each of said schedulers comprising

a database in which a scheduler identifier for identifying a user and schedule information constituted by schedule data are stored, and

a scheduler processing unit for processing the schedule information by broadcasting with respect to another scheduler.

2. The schedulers according to claim 1, wherein said scheduler processing unit includes a scheduler connecting processing unit which sends a scheduler connecting request meaning subscription into a scheduler group together with own schedule information to all of the schedulers in the group connected to the network when the scheduler is connected to the network or at given intervals.

3. The schedulers according to claim 2, wherein said scheduler processing unit monitors schedule information having the scheduler connecting request which is broadcasted on the network, and adds received schedule information to own database.

4. The schedulers according to claim 1, wherein said schedule information includes final renewal date, said scheduler processing unit sends a scheduler referring request meaning reference of schedule information of a specific scheduler which is schedule-adjusting other party together with scheduler identifier which is an adjusting other party to all of the schedulers connected to the network, receives response information from another scheduler within a given time from the above sending operation, and selects schedule information of the adjusting other party which has the latest final renewal date to renew the database.

5. The schedulers according to claim 4, wherein

said scheduler processing unit has a scheduler opening processing unit which retrieves schedule information corresponding to a scheduler identifier of the schedule-adjusting other party from own database when said scheduler processing unit received scheduler referring request from another scheduler, wherein said scheduler opening processing unit sends the schedule information together with a schedule opening response meaning a response to said scheduler referring request to the network.

6. The schedulers according to claim 1, wherein

said schedule information includes a final renewal date, said scheduler processing unit includes a scheduler deleting processing unit which deletes schedule information from the database if it has not been renewed for a given period of time based on the final renewal date of the schedule information stored in the own database.

7. The schedulers according to claim 1, wherein

said schedule information includes final renewal date, said scheduler processing unit includes a pseudo server processing unit which monitors and receives schedule information broadcasted on the network, and if a final renewal date of the received schedule information is newer than a final renewal date of schedule information stored in the own database, the database is renewed by the received schedule information.

8. The schedulers according to claim 1, wherein

said scheduler processing unit includes schedule display processing unit for taking in a plurality of schedule information which are required to be adjusted from own database, and for displaying superposing degree of the schedules having different identifiers with color gradation on a screen.

9. A schedule adjusting method for adjusting schedules between a plurality of schedulers connected to each other through a network, wherein

a scheduler identifier for identifying a user and schedule information constituted by schedule data are stored in a database of each of scheduler identifiers,

and the schedule information is processed by broadcasting with another scheduler.

10. The method according to claim 9, wherein

a scheduler connecting request meaning subscription into a scheduler group together with own schedule information are sent to all of the schedulers in the group connected to the network when the scheduler is connected to the network or at given intervals,

schedule information having the scheduler connecting request which is broadcasted on the network is monitored and received, and the received schedule information is added to own database,

a scheduler referring request meaning reference of schedule information of a specific scheduler which is schedule-adjusting other party is sent together with scheduler identifier which is an adjusting other party to all of the schedulers connected to the network, response information from another scheduler is received within a given time from the above sending operation, schedule information of the adjusting other party which has the latest final renewal date is selected to renew the database,

and when scheduler referring request was received from another scheduler, schedule information corresponding to a scheduler identifier of the schedule-adjusting other party is retrieved from own database, the schedule information together with a schedule opening response meaning a response to said scheduler referring request is sent to the network,

schedule information is deleted from the database if it has not been renewed for a given period of time based on the final renewal date of the schedule information stored in the own database.

11. A computer-readable storing medium in which schedule adjusting program for adjusting schedules between a plurality of schedulers connected to each other through a network is stored, wherein

a scheduler identifier for identifying a user and schedule information constituted by schedule data are stored in a database as the schedule adjusting program, and the schedule information is processed by broadcasting with respect to another scheduler.

12. The storing medium according to claim 11, wherein

a scheduler connecting request meaning subscription into a scheduler group together with own schedule information are sent to all of the schedulers in the group connected to the network when the scheduler is connected to the network or at given intervals, schedule information having the scheduler connecting request which is broadcasted on the network is monitored and received, and the received schedule information is added to own database,

a scheduler referring request meaning reference of schedule information of a specific scheduler which is schedule-adjusting other party is sent together with scheduler identifier which is an adjusting other party to all of the schedulers connected to the network, response information from another scheduler is received within a given time from the above sending operation, schedule information of the adjusting other party which has the latest final renewal date is selected to renew the database,

and when scheduler referring request was received from another scheduler, schedule information corresponding to a scheduler identifier of the schedule-adjusting other party is retrieved from own database, the schedule information together with a schedule opening response meaning a response to said scheduler referring request is sent to the network,

schedule information is deleted from the database if it has not been renewed for a given period of time based on the final renewal date of the schedule information stored in the own database.

13. A distributed scheduler system, wherein

a scheduler group is formed by connecting a plurality of schedulers to each other through a network,

each of said schedulers comprises

a database in which a scheduler identifier for identifying a user and schedule information constituted by schedule data are stored, and

a scheduler processing unit for processing the schedule information by broadcasting with respect to another scheduler.