JDBC Profiling Component for Connection Leak Detection

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Solution Overview

Problem

JDBC subsystems lack effective diagnostic and monitoring tools for administrators to troubleshoot and optimize performance, particularly in connection pooling and prepared statement caching, leading to inefficiencies and potential issues like connection leaks and wait failures.

Innovation Solution

Incorporating a profiling component to maintain profile information on connection usage, wait times, and prepared statement cache performance, along with a statistics monitoring component and debugging tools to trace operations, and enabling diagnostic callbacks for detailed analysis and data collection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If JDBC subsystem operates without comprehensive monitoring tools, then system complexity is reduced, but administrators cannot effectively diagnose performance issues or optimize connection pooling

Engineering Contradiction:

Improvesystem reliabilityVSAvoidmonitoring system complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent introduces a profiling component as an intermediary that sits between the JDBC subsystem and administrators. This component collects, aggregates, and presents diagnostic information in a manageable format, allowing effective monitoring without requiring administrators to directly handle the full complexity of the JDBC subsystem internals.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The monitoring system implements feedback mechanisms by continuously collecting statistics on connection pool usage, wait times, and prepared statement cache performance, then presenting this information to administrators who can use it to optimize system configuration and identify issues like connection leaks.

Inventive Principle:

Principle #23Feedback

2Measurement precision

If detailed diagnostic callbacks are implemented, then diagnostic precision is improved, but system complexity and overhead increase

Engineering Contradiction:

Improvediagnostic precisionVSAvoiddiagnostic system complexity

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The diagnostic functionality is segmented into distinct components: a profiling component for collecting statistics, a statistics monitoring component for tracking performance metrics, and debugging tools for detailed tracing. This segmentation allows each component to focus on specific diagnostic tasks, improving precision while managing complexity through modular design.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The system performs preliminary diagnostic actions by maintaining profile information on connection usage, wait times, and cache performance proactively. This allows issues to be identified and diagnosed before they become critical problems, improving diagnostic precision through advance data collection.

Inventive Principle:

Principle #10Preliminary action

3Productivity

If connection pooling is implemented to improve efficiency, then resource usage is optimized, but connection leaks and wait failures can occur

Engineering Contradiction:

Improveresource efficiencyVSAvoidconnection pool reliability

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The monitoring component provides continuous feedback on connection pool health by tracking connection usage patterns, identifying potential leaks through abnormal retention patterns, and monitoring wait times to detect pool exhaustion conditions. This feedback enables proactive management of connection pool reliability.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The patent replaces manual connection pool management with automated diagnostic and monitoring mechanisms that use software-based tracking and analysis to detect and report connection leaks and wait failures, substituting mechanical manual oversight with systematic automated monitoring.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

4Speed

If prepared statement caching is used to enhance performance, then query execution speed improves, but cache performance optimization becomes complex

Engineering Contradiction:

Improvequery execution speedVSAvoidcache management complexity

Core Design Contradiction:

SpeedVSDevice complexity

Solution Approach 1:

The prepared statement cache operates with a degree of autonomy, automatically managing statement caching and retrieval based on query patterns. The monitoring component provides visibility into cache performance without requiring manual intervention for basic operations, allowing the system to self-optimize while providing diagnostic capabilities.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

Manual cache optimization is replaced with automated diagnostic tools that monitor prepared statement cache performance metrics. The system automatically tracks cache effectiveness and provides information for optimization without requiring manual tuning, substituting mechanical cache management with intelligent automated monitoring.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS7784033B2JDBC monitoring and diagnostics enhancements

Publication Date: 2010.08.24 ORACLE INT CORP

AI summary

Applications can interact with a database using a JDBC subsystem. The JDBC subsystem includes a connection pool with multiple connections, and parses database requests to produce statements to be sent to a database management system (DBMS). A previously parsed statement can be stored in a prepared statement cache. A profiling component can be used to maintain profile information concerning the connection pool and the prepared statement cache.