Dynamic monitoring architecture

• US 5,787,409 A
• Filed: 05/17/1996
• Issued: 07/28/1998
• Est. Priority Date: 05/17/1996
• Status: Expired due to Fees

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Seiffert, Roland, Wong, Stan
• Primary Examiner(s): Downs, Robert W.
• Application Number:
  US08/650,900
• Time in Patent Office: 802 Days
• Field of Search: 395/183.02, 395/64, 395/10, 395/11, 395/50, 395/60, 395/916, 364/550, 364/551.01
• US Class Current: 706/45
• CPC Class Codes: G06F 11/0757 by exceeding a time limit, i.e. time-out, e.g. watchdogs
• CPC Class Codes: G06F 11/3006 where the computing system is distributed, e.g. networked systems, clusters, multiprocessor systems multiprogramming arrangements G06F9/46; allocation of resources G06F9/50
• CPC Class Codes: G06F 11/3055 Monitoring arrangements for monitoring the status of the computing system or of the computing system component, e.g. monitoring if the computing system is on, off, available, not available error or fault processing without redundancy G06F11/0703; error detection or correction by redundancy in data representation G06F11/08; error detection or correction by redundancy in operation G06F11/14; error detection or correction by redundancy in hardware G06F11/16
• 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 11/34 Recording or statistical evaluation of computer activity, e.g. of down time, of input/output operation ; Recording or statistical evaluation of user activity, e.g. usability assessment
• CPC Class Codes: G06F 11/3495 for systems
• CPC Class Codes: Y10S 706/916 Electronic or computer, internal or network, circuit

Abstract

A dynamic monitoring system for monitoring a computer system. The monitoring system is based on an optimized distributed policies or rules evaluation knowledge-base for monitoring the current state and conditions of the computer system in real-time. The monitoring system is further designed to monitor and dynamically reconfigure itself in real-time, based on the changing state and conditions of the computer system being monitored. The dynamic monitoring system continuously changes and adjusts to the present state of the computer system.

Claims

1. A dynamic monitoring system for monitoring status and conditions of a computer system, said dynamic monitoring system comprising:

one or more watchdog checks, each defining a predetermined characteristic of said computer system to be monitored, and one or more watchdog rules, each defining a condition to be evaluated based on one or more of said watchdog checks;

a monitor, responsive to said watchdog checks, for monitoring the predetermined characteristics of said computer system, said monitor producing check values representative of the status of said predetermined characteristics of said computer system;

a rule evaluator, responsive to said one or more watchdog rules and at least one of said check values, for evaluating at least one of said watchdog rules based on said at least one check value and for producing an evaluation result; and

altering means, responsive to said evaluation result, for dynamically altering said rule evaluator in real-time, by activating and suspending at least one of said watchdog rules and checks based on said evaluation result, to adapt said rule evaluator and said dynamic monitoring system to the status and conditions of said computer system.

2. A dynamic monitoring system as defined by claim 1, further comprising means, responsive to an output of said rule evaluation means, for implementing one or more predetermined processes as defined by said watchdog rules.

3. A dynamic monitoring system as defined by claim 1, further comprising a guard on one of said watchdog rules, wherein said guard defines predetermined conditions which must be satisfied in order for said watchdog rule to be considered.

4. A dynamic monitoring system for monitoring status and conditions of a computer system, said dynamic monitoring system comprising:

a plurality of watchdog checks, each defining a predetermined characteristic of said computer system to be monitored, and a plurality of watchdog rules, each defining a condition to be evaluated based on one or more of said watchdog checks, wherein a first monitoring group is constituted by a first predetermined number of watchdog checks and rules, and a second monitoring group is constituted by a second predetermined number of watchdog checks and rules; and

a monitor, responsive to said first and second monitoring groups of watch dog checks and rules, said monitor monitoring said computer system in accordance with said first monitoring group, and producing first results representative of the status of said predetermined characteristics of said computer system, and said monitor, responsive to the first results, monitoring said computer system in accordance with said second monitoring group, when said first results indicate a first predetermined condition of said computer system, said monitor producing second results representative of the status of said computer system, and wherein said monitoring means further comprises means for activating and suspending at least one of said watchdog rules and checks, based on said first and second results.

5. A dynamic monitoring system as defined by claim 4, wherein said first monitoring group of watchdog checks and rules monitors general conditions of said computer system, and said second monitoring group of watchdog checks and rules monitors detailed conditions of said computer system. means indicated a second predetermined condition of said computer system.

6. A dynamic monitoring system as defined by claim 5, wherein a third monitoring group is constituted by a third predetermined number of watchdog checks and rules, said third set of watchdog checks and rules monitors conditions of said computer system more detailed than said second monitoring group, and wherein said monitor, responsive to said first and second results, further monitors said computer system in accordance with said third monitoring group of watchdog checks and rules to produce third results, when said first and second results indicate a second predetermined condition of said computer system.

7. A dynamic monitoring system as defined by claim 6, further comprising means for placing a guard on at least one of said watchdog rules, wherein said guard defines predetermined conditions which must be satisfied in order for said watchdog rule to be considered.

8. A dynamic monitoring system as defined by claim 6, wherein said first predetermined number equals at least one.

9. A dynamic monitoring system as defined by claim 6, wherein said second monitoring group is greater than one.

10. A dynamic monitoring system as defined by claim 6, wherein said third predetermined number is greater than each of said first and second predetermined numbers.

11. A dynamic monitoring system as defined by claim 6, wherein said third predetermined number is greater than said second predetermined number, and said second predetermined number is greater than said first predetermined number.

12. A method of dynamically monitoring a computer system, said method comprising the steps of:

defining a knowledge base including one or more watchdog checks, each defining a predetermined characteristic of said computer system to be monitored, and one or more watchdog rules, each defining a condition to be evaluated based on one or more of said watchdog checks;

monitoring said computer system in accordance with said knowledge base, and producing a result representative of a present status of said computer system;

dynamically reconfiguring said knowledge base in accordance with the status of said computer system, by activating and suspending at least one of said watchdog rules and checks based on said result, so as to adapt said dynamic monitoring system to the present status of said computer system; and

monitoring said computer system in accordance with said reconfigured knowledge base.

13. A method of dynamically monitoring a computer system as defined by claim 12, wherein said step of dynamically reconfiguring said knowledge base is implemented in real-time.

14. A method of dynamically monitoring a computer system as defined by claim 13, wherein said knowledge base is divided into at least first and second groups of watchdog checks and watchdog rules, and wherein said first monitoring step comprises the steps of monitoring the computer system based on said first group of watchdog checks and rules, said step of dynamically reconfiguring said knowledge base comprising the steps of activating said second group of watchdog checks and rules, and suspending said first group of watchdog checks and rules, and said second monitoring step comprises the steps of monitoring said computer system based on said second group of watchdog checks and rules.

15. A method of dynamically monitoring a computer system as defined by claim 14, wherein said first group of watchdog checks and rules monitor general characteristics of said computer system, and said second group of watchdog checks and rules monitor detailed characteristics of said computer system.

16. A method of dynamically monitoring a computer system as defined by claim 14, wherein said second group includes more watchdog checks and rules than said first group.

17. A method of dynamically monitoring a computer system as defined. by claim 13, wherein said knowledge base is divided into a plurality of groups of watchdog checks and watchdog rules, including a general group of watchdog checks and rules and at least first and second specific groups of watchdog checks and rules, and wherein said first monitoring step comprises the steps of monitoring the computer system based on said general group of watchdog checks and rules;

and said step of dynamically reconfiguring said knowledge base comprising the steps of activating one of said first and second specific group based on the results generated by said first monitoring step implementing said general group of said watchdog checks and rules.

18. A method of dynamically monitoring a computer system as defined by claim 17, wherein said general group of watchdog checks and rules monitor general characteristics of said computer system, and said first and second specific groups of watchdog checks and rules monitor specific characteristics of said computer system, said first specific group of watchdog checks and rules being defined to monitor a first problem of said computer system, as detected by said general group of watchdog checks and rules, and said second specific group of watchdog checks and rules being defined to monitor a second problem of said computer system, as detected by said general group of watchdog checks and rules.