Flexible Event History Management via Selective Log Deletion
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Solution Overview
Problem
Existing techniques for managing event histories do not allow for flexible deletion of logs, often retaining unnecessary logs that occupy storage space and limiting the ability to prioritize logs around specific events.
Innovation Solution
An information processing apparatus with an analysis unit, selection unit, and deletion unit that analyzes event histories, selects logs to be retained based on analysis results, and deletes other logs, enabling flexible management of event histories.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If logs are deleted using existing techniques (PTLs 1 and 2), then storage space is reduced, but the flexibility to manage different types of logs according to diverse requirements is lost
Solution Approach 1:
The patent implements dynamic log management by allowing different deletion policies for different log types. The system dynamically determines which logs to delete based on their type and associated event histories, rather than applying a static deletion rule to all logs uniformly. This enables flexible adaptation to diverse storage requirements while maintaining necessary logs for analysis.
Solution Approach 2:
The patent applies different deletion criteria to different log types locally. Instead of a uniform deletion approach, the system evaluates each log type individually and applies deletion rules specific to that log type's characteristics and importance, allowing optimized storage management for each category while preserving locally important information.
2Adaptability or versatility
If all logs are retained for future analysis, then analysis flexibility is maintained, but storage resources are excessively consumed
Solution Approach 1:
The patent changes the parameter of log retention by introducing log type as a distinguishing factor. Different log types have different retention policies applied to them, allowing the system to optimize storage resources by retaining only those logs that are most valuable for future analysis while deleting less important logs.
Solution Approach 2:
The patent selectively discards logs that are less important for future analysis based on their type and associated event histories. By intelligently identifying which logs can be safely deleted and which should be preserved, the system recovers storage space while maintaining the ability to perform meaningful future analysis on retained logs.
3Reliability
If logs around specific events are prioritized for retention, then event analysis quality improves, but storage efficiency decreases
Solution Approach 1:
The patent performs preliminary identification and classification of logs by type and their relationship to event histories before deletion decisions are made. This preliminary action allows the system to proactively preserve logs that are important for event analysis while preparing to delete less important logs, ensuring analysis quality is maintained before storage space becomes constrained.
Data Source
AI summary
An information processing apparatus 2000 executes analysis for an event history set (10). The event history set (10) is a set of a plurality of event histories (12). The event history (12) is information relating to an event generated in a target computer system. The information processing apparatus 2000 selects, based on a result of the analysis, an event history (12) to be excluded from deletion targets. The information processing apparatus (2000) deletes, from the event history set (10), an event history (12) other than the event history (12) excluded from the deletion targets.