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Database Taskforce and the OGSA-DAI Project

Database Taskforce and the OGSA-DAI Project. Norman Paton University of Manchester. Outline. Database Taskforce (DBTF): who, what and why. Databases and the Grid: context and capabilities. OGSA Database Access and Integration Project: what, where and when. Relevant Web Pages.

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Database Taskforce and the OGSA-DAI Project

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  1. Database Taskforce and the OGSA-DAI Project Norman Paton University of Manchester

  2. Outline • Database Taskforce (DBTF): • who, what and why. • Databases and the Grid: • context and capabilities. • OGSA Database Access and Integration Project: • what, where and when.

  3. Relevant Web Pages • http://www.cs.man.ac.uk/grid-db

  4. Membership • Malcolm Atkinson (NESC) • Vijay Dialani (Southampton University) • Norman Paton (Manchester University) • Dave Pearson (Oracle UK) • Tony Storey (IBM Hursley) • Paul Watson (Newcastle University)

  5. To identify the requirements of database and information management applications within a Grid setting. Requirements analysis underway, with visits to Grid projects. Preliminary report by Dave Pearson tabled at GGF4 and on Web. Series of meetings at NESC. Aims/Actions: Requirements

  6. To develop a roadmap for research and development of database functionalities in a Grid setting. Proposal involves a collection of Grid Database services. Initial collection of Grid Database Services tabled at GGF4 and on Web. Aims/Actions: Roadmap

  7. To propose standards for Grid/Database links through the GGF. Birds of a Feather Session run as part of GGF4. Hope to establish a Working Group before GGF5, involving wider community. Aims/Actions: Standards

  8. To foster the development of reference implementations of proposed Grid standards. OGSA-DAI (Database Access and Integration Project just funded through Core Programme). GGF WG to encourage wider involvement with reference implementations. Aims/Actions: Implementation

  9. To advise the Architecture Task Force on architectural requirements for database support. Meet periodically with ATF. In line with ATF in terms of services focus. Aims/Actions: Architecture

  10. To encourage greater awareness of needs and best practice in respect to databases and the Grid. Requirements analysis building links with users. Series of meetings at NESC on Database/Grid issues. Input on use of developed software, plus good practice. Aims/Actions: Education

  11. Outline • Database Taskforce (DBTF): • who, what and why. • Databases and the Grid: • context and capabilities. • OGSA Database Access and Integration Project: • what, where and when.

  12. Databases in the Grid Data Complexity Semantic Web Classical Web Classical Grid Computational Complexity

  13. Grid Middleware

  14. Scope of Database Services • Discovery. • Statements. • Delivery. • Metadata. • Transactions. • Distributed queries.

  15. Statement Service • For queries involves: • The query notation. • The query to be evaluated. • The parameters for the query. • The result delivery mechanism. • Invoking a query operation: • Prepares and validates the query, reporting back success or failure. • Provides access to the results collection.

  16. Query Operation • Specified here even more abstractly than in WSDL. • Several operations: synchronous, asynchronous, etc. • Service descriptions start off data model and language independent, then instantiated. query( IN queryNotation, IN query, OPTIN values, OPTIN expires, INOUT resultHandle, OUT fail)

  17. Outline • Database Taskforce (DBTF): • who, what and why. • Databases and the Grid: • context and capabilities. • OGSA Database Access and Integration Project: • what, where and when.

  18. OGSA-DAI Project • OGSA - Data Access and Integration Services project. • IBM (Tony Storey, Brian Collins). • Oracle (Dave Pearson). • NESC/EPCC (Malcolm Atkinson, Rob Baxter). • Manchester University (Norman Paton). • Newcastle University (Paul Watson). • £1.5 Million (plus matching industrial contributions) over 18 months.

  19. Project Plan • Well defined deliverables for first 6 months: • Core Relational Services. • Core XML Services. • Less well defined deliverables over following 12 months: • Intercept emerging GT3 releases. • Comprehensive delivery services. • Metadata. • Specialist data types. • Distributed queries.

  20. Short Term Deliverables • GGF5: • DAI Framework Document. • Instantiation for RDBs and XML repositories. • Provisional dates for core services (given resolution of licensing/collaboration agreements):

  21. Short Term Tensions • Multiple database paradigms/platforms. • Multiple language interfaces. • Users contexts: • Web services. • Globus 2. • Globus 3.

  22. Relationship to GGF WG • To be established, but: • Contribute insights into design of DAI services. • Contribute to documents that feed into the GGF standardisation activity. • Provision of reference implementations of standard proposals. • Contribute to the development of OGSA proposal as early adopters.

  23. Relationship to other UK e-Science Projects • To be established, but: • Seeks to address requirements found in (UK) e-Science projects. • Development activity designed to provide core functionality early. • Formal relationship with some as early adopters (myGrid, AstroGrid). • Could be possible to collaborate on certain development activities.

  24. Summary: DBTF Interfaces Working Group Recommendations DBTF Database Service Development Requirements Community- building

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