EVENT DEPENDENCY MANAGEMENT APPARATUS AND EVENT DEPENDENCY MANAGEMENT METHOD

• US 20120159519A1
• Filed: 11/03/2011
• Published: 06/21/2012
• Est. Priority Date: 12/17/2010
• Status: Abandoned Application

• Current Assignee: Fujitsu Limited
• Original Assignee: Fujitsu Limited
• Inventors: Matsuda, Yuichi
• Application Number:
  US13/288,136
• Publication Number:
  US 20120159519A1
• Time in Patent Office: Days
• US Class Current: 719/318
• CPC Class Codes: G06F 11/0709 in a distributed system consisting of a plurality of standalone computer nodes, e.g. clusters, client-server systems
• CPC Class Codes: G06F 11/0754 by exceeding limits
• CPC Class Codes: G06F 11/3003 Monitoring arrangements specially adapted to the computing system or computing system component being monitored
• CPC Class Codes: G06F 11/3072 where the reporting involves data filtering, e.g. pattern matching, time or event triggered, adaptive or policy-based reporting
• CPC Class Codes: G06F 11/3089 Monitoring arrangements determined by the means or processing involved in sensing the monitored data, e.g. interfaces, connectors, sensors, probes, agents software debugging using additional hardware using a specific debug interface G06F11/3656; performance evaluation by tracing or monitoring G06F11/3466
• CPC Class Codes: G06F 2201/86 Event-based monitoring
• CPC Class Codes: G06F 2201/865 Monitoring of software

Abstract

An event dependency management apparatus manages a first managed object at which a first event may occur, a second managed object at which a second event may occur in dependence upon the first event, and a third managed object at which a third event may occur in dependence upon the second event. The event dependency management apparatus includes a processor to calculate a difference between an occurrence time of the first event and an occurrence time of the third event, and determine that the third event has occurred in dependence upon the first event when the calculated difference is smaller than a predetermined time.

Claims

1. An event dependency management apparatus for managing a first managed object at which a first event may occur, a second managed object at which a second event may occur in dependence upon the first event, and a third managed object at which a third event may occur in dependence upon the second event, the event dependency management apparatus comprising:

a processor to

calculate a difference between an occurrence time of the first event and an occurrence time of the third event, and

determine that the third event has occurred in dependence upon the first event when the calculated difference is smaller than a predetermined time.

2. An event dependency management apparatus for managing a first managed object at which a first event may occur and a plurality of second managed objects at each of which a second event may occur in dependence upon the first event, the event dependency management apparatus comprising:

a processor to

calculate differences between occurrence times of two second events among second events occurred at the plurality of second managed objects, and

determine that the second events have occurred in dependence upon the first event when the calculated differences are smaller than a predetermined time.

3. The event dependency management apparatus according to claim 2, wherein

the processor further

calculates a degree of reliability on the basis of an first number of the plurality of second managed objects and a second number of the second managed objects at which the second events have occurred, and

determines that the second events have occurred in dependence upon the first event when the calculated degree of reliability is larger than a predetermined value and the calculated differences are smaller than the predetermined time.

4. The event dependency management apparatus according to claim 2, wherein

the processor further

generates a dummy value of an occurrence time of the first event when the processor has determined that the second events have occurred in dependence upon the first event.

5. A computer-readable, non-transitory medium storing a program that causes a computer to execute an event dependency management method, the computer managing a first managed object at which a first event may occur, a second managed object at which a second event may occur in dependence upon the first event, and a third managed object at which a third event may occur in dependence upon the second event, the event dependency management method comprising:

calculating a difference between an occurrence time of the first event and an occurrence time of the third event, and

determining that the third event has occurred in dependence upon the first event when the calculated difference is smaller than a predetermined time.

6. A computer-readable, non-transitory medium storing a program that causes a computer to execute an event dependency management method, the computer managing a first managed object at which a first event may occur and a plurality of second managed objects at each of which a second event may occur in dependence upon the first event, the event dependency management method comprising:

calculating differences between occurrence times of two second events among second events occurred at the plurality of second managed objects, and

determining that the second events have occurred in dependence upon the first event when the calculated differences are smaller than a predetermined time.

7. An event dependency management method executed by an event dependency management apparatus for managing a first managed object at which a first event may occur, a second managed object at which a second event may occur in dependence upon the first event, and a third managed object at which a third event may occur in dependence upon the second event, the event dependency management method comprising:

calculating a difference between an occurrence time of the first event and an occurrence time of the third event, and

determining, by the event dependency management apparatus, that the third event has occurred in dependence upon the first event when the calculated difference is smaller than a predetermined time.

8. An event dependency management method executed by an event dependency management apparatus for managing a first managed object at which a first event may occur and a plurality of second managed objects at each of which a second event may occur in dependence upon the first event, the event dependency management method comprising:

calculating differences between occurrence times of two second events among second events occurred at the plurality of second managed objects, and

determining, by the event dependency management apparatus, that the second events have occurred in dependence upon the first event when the calculated differences are smaller than a predetermined time.