Making Web Databases OGSA-Ready™

OGSA-WebDB was developed to help make existing web database (WebDB) resources grid-ready. Using OGSA-WebDB, grid clients can query the tremendous amount of existing web databases using SQL. This enables grid applications to integrate data from local databases with data from web databases.

Download current release (based on OGSA-DAI 3.0): - Version 3.0

Download previous release (based on OGSA-DAI 2.2) : - Version 2.1

Architecture

  • Proxy Database:
    • Delegates WebDBs
    • Caches WebDBs data (not implemented yet)
  • Mediator:
    • Converts SQL into subqueries for WebDBs and processes them in parallel.
  • Wrapper:
    • Retrieves data from WebDBs and converts it into XML format
  • Management Service:
    • Manages WebDB resource information and user authentication data
architecture1.jpg

Features

OGSA/OGSA-DAI compliance:

  • Supports OGSA-DAI 3.0 (Axis or GT)

High extensibility:

  • Easy to add WebDBs using WebDB management service and an installation file
  • Wrappers can be built with existing tools

WebDBs Data Integration using SQL:

  • Joins data from the local grid and external WebDBs

Future Plans

  • Automatic wrapper generation for a Web service (WSDL)

Links


Attach file: filearchitecture1.jpg 140 download [Information]

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Last-modified: 2008-09-30 (Tue) 16:35:55 (276d)