Computer product, request grouping apparatus, and request grouping method

• US 20070260589A1
• Filed: 11/20/2006
• Published: 11/08/2007
• Est. Priority Date: 05/08/2006
• Status: Active Grant

• Current Assignee: Fujitsu Limited
• Original Assignee: Fujitsu Limited
• Inventors: Yugami, Nobuhiro
• Granted Patent: US 7,788,370 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 11/3447 Performance evaluation by modeling
• CPC Class Codes: G06F 11/3495 for systems
• CPC Class Codes: G06F 2201/87 Monitoring of transactions

Abstract

Request grouping rules are maintained for grouping a system request based on information relating to a character string in the system request; call relation sets are created from the system requests sent and received among the servers and stored in the request history by associating the system requests by call relation; the call relation sets are converted into inter-request group call relation sets based on the maintained request grouping rules; along with a frequency of appearance of the request group in the request history, inter-request group call relation patterns are derived for each request group, each inter-request group call relation pattern consisting of the request group invoking and the request group invoked by the request group in question; a rating value is calculated for rating the request groups based on the derived inter-request group call relation pattern.

Claims

1. A computer-readable recording medium that stores therein a computer program that causes a computer to implement a request grouping method for grouping system requests in a system that processes a request from a client by sending and receiving the system requests among a plurality of servers in the system in a coordinated manner, the computer program causing the computer to execute:

maintaining request grouping rules for grouping a system request based on information relating to a character string in the system request;

creating call relation sets from the system requests sent and received among the servers and stored in the request history by associating the system requests by call relation;

converting the call relation sets into inter-request group call relation sets based on the request grouping rules maintained at the maintaining;

deriving, along with a frequency of appearance of the request group in the request history, inter-request group call relation patterns for each request group, each inter-request group call relation pattern consisting of the request group invoking and the request group invoked by the request group in question; and

calculating a rating value for rating the request groups based on the inter-request group call relation pattern derived at the deriving.

2. The computer-readable recording medium according to claim 1, wherein the computer program further cause the computer to execute:

modifying the character string in the system request in the request grouping rules maintained at the maintaining and assigning a new request group to modified character string,

wherein the deriving includes, the inter-request group call relation pattern for the request group modified at the modifying, the calculating includes calculating the rating value for the new inter-request group call relation pattern, and determining an ending condition by comparing the rating value and a predetermined ending condition.

3. The computer-readable recording medium according to claim 1, wherein the calculating includes calculating a correlation value, whereby a strength of correlation between derived inter-request group call relation pattern and the request group is rated, on the frequency of appearance.

4. The computer-readable recording medium according to claim 1, wherein the inter-request group call relation patterns are derived by creating the call relation sets that include therein the system requests associated by call relation exhaustively projected based on a preset specification.

5. The computer-readable recording medium according to claim 1, wherein the inter-request group call relation patterns are derived based on the request grouping maintained at the maintaining, only those call relation sets having a high frequency of appearance in the request history.

6. The computer-readable recording medium according to claim 2, wherein when same inter-request group call relation pattern derived is associated with different request groups in the request grouping maintained at the maintaining, a new request group is assigned at the modifying so that identical inter-request group call relation patterns are grouped together in one request group.

7. The computer-readable recording medium according to claim 2, wherein when different inter-request group call relation patterns derived are associated with the same request group in the request grouping maintained at the maintaining, a new request group is assigned at the modifying so that the inter-request group call relation patterns are segregated in different request groups.

8. A request grouping apparatus that groups system requests in a system that processes a request from a client by sending and receiving the system requests among a plurality of servers in the system in a coordinated manner, the request grouping apparatus comprising:

a maintaining unit that maintains request grouping rules for grouping a system request based on information relating to a character string in the system request;

a pattern deriving unit that creates call relation sets from the system requests sent and received among the servers and stored in the request history by associating the requests by call relation, converts the call relation sets between the request themselves into inter-request group call relation sets based on the request grouping maintained by the maintaining unit, and derives, along with a frequency of appearance of the request group in the request history, inter-request group call relation patterns for each request group, each inter-request group call relation pattern consisting of the request group invoking and the request group invoked by the request group in question; and

a calculating unit that calculates a rating value whereby the request groups are rated based on the inter-request group call relation pattern derived by the deriving unit.

9. The request grouping apparatus according to claim 8, further comprising a modifying unit that modifies the character string in the system request in the request grouping rules maintained by the maintaining unit and assigns a new request group to modified character string, wherein

the deriving unit derives the inter-request group call relation pattern for the new request group assigned by the modifying unit, and

the calculating unit calculates the rating value for the new inter-request group call relation pattern, and determines an ending condition by comparing the rating value and a predetermined ending condition.

10. The request grouping apparatus according to claim 8, wherein the calculating unit calculates a correlation value, whereby a strength of correlation between derived inter-request group call relation pattern and the request group is rated, on the frequency of appearance.

11. The request grouping apparatus according to claim 8, wherein the deriving unit derives the inter-request group call relation patterns that include therein the system requests associated by call relation exhaustively projected based on a preset specification.

12. The request grouping apparatus according to claim 8, wherein the deriving unit derives the inter-request group call relation patterns based on the request grouping maintained by the maintaining unit.

13. The request grouping apparatus according to claim 9, wherein when same inter-request group call relation pattern derived is associated with different request groups in the request grouping maintained by the maintaining unit, the modifying unit assigns a new request group so that identical inter-request group call relation patterns are grouped together in one request group.

14. A request grouping method for grouping system requests in a system that processes a request from a client by sending and receiving the system requests among a plurality of servers in the system in a coordinated manner, the request grouping method comprising:

maintaining request grouping rules for grouping a system request based on information relating to a character string in the system request;

creating call relation sets from the system requests sent and received among the servers and stored in the request history by associating the system requests by call relation;

converting the call relation sets into inter-request group call relation sets based on the request grouping rules maintained at the maintaining;

deriving, along with a frequency of appearance of the request group in the request history, inter-request group call relation patterns for each request group, each inter-request group call relation pattern consisting of the request group invoking and the request group invoked by the request group in question; and

calculating a rating value for rating the request groups based on the inter-request group call relation pattern derived at the deriving.

15. The request grouping method according to claim 14, further comprising:

modifying the character string in the system request in the request grouping rules maintained at the maintaining and assigning a new request group to modified character string,

wherein the deriving includes, the inter-request group call relation pattern for the request group modified at the modifying, the calculating includes calculating the rating value for the new inter-request group call relation pattern, and determining an ending condition by comparing the rating value and a predetermined ending condition.

16. The request grouping method according to claim 14, wherein the calculating includes calculating a correlation value, whereby a strength of correlation between derived inter-request group call relation pattern and the request group is rated, on the frequency of appearance.

17. The request grouping method according to claim 14, wherein the inter-request group call relation patterns are derived by creating the call relation sets that include therein the system requests associated by call relation exhaustively projected based on a preset specification.

18. The request grouping method according to claim 14, wherein the inter-request group call relation patterns are derived based on the request grouping maintained at the maintaining, only those call relation sets having a high frequency of appearance in the request history.

19. The request grouping method according to claim 15, wherein when same inter-request group call relation pattern derived is associated with different request groups in the request grouping maintained at the maintaining, a new request group is assigned at the modifying so that identical inter-request group call relation patterns are grouped together in one request group.