SYSTEM FOR DISCOVERING BUGS USING INTERVAL ALGEBRA QUERY LANGUAGE

• US 20160041892A1
• Filed: 06/22/2015
• Published: 02/11/2016
• Est. Priority Date: 09/27/2013
• Status: Active Grant

• Current Assignee: Emc IP Holding Company LLC (Dell Technologies Inc.)
• Original Assignee: EMC Corporation (Dell Technologies Inc.)
• Inventors: Chen, Kai, Tao, Jun, Chen, Ping, Dutch, Michael John, Chamness, Mark, Andruss, William Dale, Chen, Bo, Claudatos, Christopher Hercules
• Granted Patent: US 10,061,681 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 11/0706 the processing taking place on a specific hardware platform or in a specific software environment
• CPC Class Codes: G06F 11/0751 Error or fault detection not based on redundancy power supply failures G06F1/30; network fault management H04L41/06
• CPC Class Codes: G06F 11/362 Software debugging
• CPC Class Codes: G06F 11/366 using diagnostics G06F11/0703 takes precedence

Abstract

A system for discovering bugs comprises an input interface and a processor. The input interface is configured to receive a bug definition. The bug definition includes a set operator with a time constraint and one or more set operands. The input interface is configured to receive an event log. The processor is configured to determine a list of bug occurrences using the bug definition and the event log.

Claims

1. A system for discovering bugs, comprising:

an input interface configured to receive an event log;

a processor configured to;

parse the event log to build an event symptom database;

evaluate a bug definition on the event symptom database to determine whether a bug as defined by the bug definition has occurred; and

provide a list of bug occurrences; and

a memory coupled to the processor and configured to provide the processor with instructions.

2. The system of claim 1, wherein the event log comprises a text file of software status messages.

3. The system of claim 1, wherein the event system database comprises a structured database of software status messages.

4. The system of claim 1, wherein the event system database stores a symptom type.

5. The system of claim 1, wherein the event system database stores a symptom status.

6. The system of claim 1, wherein the event system database stores a symptom variable.

7. The system of claim 1, wherein the event system database stores a symptom time.

8. The system of claim 1, wherein the bug definition comprises a set of rules for identifying bugs.

9. The system of claim 8, wherein a rule for identifying bugs comprises an event symptom condition.

10. The system of claim 1, wherein the bug definition comprises a set operator.

11. The system of claim 10, wherein the set operator comprises one or more of the following:

overlaps, during, starts, finishes, and, or, xor, not, or times.

12. The system of claim 10, wherein the set operator includes a time constraint.

13. The system of claim 12, wherein the time constraint includes a time constraint relation.

14. The system of claim 13, wherein the time constraint relation comprises one of the following:

less than, less than or equal to, greater than, greater than or equal to, or equal to.

15. The system of claim 12, wherein the time constraint includes a time constraint value.

16. A method for discovering bugs, comprising:

receiving an event log

parsing, using a processor, the event log to build an event symptom database;

evaluating a bug definition on the event symptom database to determine whether a bug as defined by the bug definition has occurred; and

providing a list of bug occurrences.

17. A computer program product for discovering bugs, the computer program product being embodied in a tangible computer readable storage medium and comprising computer instructions for:

receiving an event log

parsing, using a processor, the event log to build an event symptom database;

evaluating a bug definition on the event symptom database to determine whether a bug as defined by the bug definition has occurred; and

providing a list of bug occurrences.