rethinking database system architecture: towards a self-tuning risc-style database system

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Rethinking Database System Architecture:

Towards a Self-tuning

RISC-style Database System

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Introduction

• Current environment– Complex database systems– Numerous functionalities

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• Numerous functionalities• Complex interfaces• High level SQL• Unpredictable performance• Tuning problems• Need for better (thinner) systems• Difficulty in researches

Problems

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• RISC Style Architecture– Smaller, specialized components– Narrow interfaces– Smaller footprints– More suitable for tuning

Solution

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Previous Trials

• Common problem causes– Universality– Cost– Transparency– Resource sharing

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Previous Trials (Cont.)

• Concepts– DB system generators– Extensible kernel systems– Unbundled technology

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Proposal

• Query Processor– Single table selection processor– Select – Project – Join (SPJ) processor– SQL Processor

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Proposal (Cont.)

• Storage Manager– Disk management– Caching– Logging– Recovery– Concurrency control– Index manager

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Considerations

• Need for more building blocks• Avoid complexity• Identify functionality• Identify interfaces• Each block is self-tuning• Each block has predictable performance• Performance loss is tolerable

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Required Actions

• Support limited data types• Leave SQL• Separate resources• Preconfigure

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Prerequisites

• Universal glue• Functionality selection• Self-tuning

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Research Opportunities

• Implementation of proposed system

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Conclusion

• Database systems became uncontrollable• RISC style architectures can have impact on the

future of database systems

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Questions

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Thank You…