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Database Taskforce and the OGSA-DAI Project

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Database Taskforce and the OGSA-DAI Project Norman Paton University of Manchester Outline Database Taskforce (DBTF): who, what and why. Databases and the Grid ... – PowerPoint PPT presentation

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Title: Database Taskforce and the OGSA-DAI Project


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
Aims/Actions Requirements
  • 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.

6
Aims/Actions Roadmap
  • 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.

7
Aims/Actions Standards
  • 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.

8
Aims/Actions Implementation
  • 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.

9
Aims/Actions Architecture
  • 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.

10
Aims/Actions Education
  • 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.

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 Grid
Classical Web
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)

Early-adopters Public
XML 1st May 19th July
RDB 1st July 1st Sept
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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