INFORMATION PROCESSING APPARATUS THAT RECORDS LOGS, AND CONTROL METHOD AND STORAGE MEDIUM THEREFOR

• US 20110078515A1
• Filed: 09/27/2010
• Published: 03/31/2011
• Est. Priority Date: 09/28/2009
• Status: Active Grant

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: YASUKAWA, Takuma
• Granted Patent: US 8,639,990 B2
• Time in Patent Office: Days
• US Class Current: 714/48
• CPC Class Codes: G06F 11/0733 in a data processing system embedded in an image processing device, e.g. printer, facsimile, scanner
• CPC Class Codes: G06F 11/0775 Content or structure details of the error report, e.g. specific table structure, specific error fields

Abstract

An information processing apparatus capable of overwrite-recording time-series logs indicating an operation history and efficiently holding log information on operations relating to an occurring error. When an error is detected, a filtering object area is set that contains log information for a predetermined time period immediately before the error detection. Then, a type of the occurring error is identified, and log types to be protected are decided based on the identified error type. Among the filtering object area, log recording areas for the decided log types are decided as a to-be-protected log recording area. Subsequently, further log information is recorded so as to avoid the to-be-protected log recording area.

Claims

1. An information processing apparatus having a storage unit for storing logs, comprising:

a decision unit configured, when an error has occurred in the information processing apparatus, to decide types of to-be-protected logs based on a type of the error; and

a control unit configured to control such that logs of the types decided by said decision unit, among logs having been stored in the storage unit, are not erased in a case where a new log is stored in the storage unit after occurrence of the error in the information processing apparatus.

2. The information processing apparatus according to claim 1, wherein said control unit controls so as not to erase, among the logs having been stored in the storage unit, logs for a predetermined time period beginning at a time point going back from occurrence of the error in the information processing apparatus, the logs being of the types decided by said decision unit.

3. The information processing apparatus according to claim 1, wherein said control unit controls so as not to erase, among the logs having been stored in the storage unit, logs of a predetermined storage size beginning at a storage position going back from occurrence of the error in the information processing apparatus, the logs being of the types decided by said decision unit.

4. A control method for an information processing apparatus having a storage unit for storing logs, comprising the steps of:

(a) deciding types of to-be-protected logs based on a type of an error when the error has occurred in the information processing apparatus; and

(b) controlling such that logs of the types decided in said step (a), among logs having been stored in the storage unit, are not erased in a case where a new log is stored in the storage unit after occurrence of the error in the information processing apparatus.

5. A non-transitory storage medium storing a program for causing an information processing apparatus having a storage unit for storing logs to execute the steps of:

(a) deciding types of to-be-protected logs based on a type of an error when the error has occurred in the information processing apparatus; and

(b) controlling such that logs of the types decided in said step (a), among logs having been stored in the storage unit, are not erased in a case where a new log is stored in the storage unit after occurrence of the error in the information processing apparatus.