OGSA-DAI Roadmap

Overview

The OGSA-DAI roadmap until March 2010 is focused on the following activities:

Move OGSA-DAI from an open source product to an open source project.

• Ensure OGSA-DAI is a sustainable product for ourselves, our developers and our users, outwith any single funding stream or single institution.
• Form a community of users and developers across many projects.
• Set up an open source project site on SourceForge.
• Define a governance and management model.
• Provide resources for development, dissemination and support for users, developers, contributors and collaborators.

Distributed query processing.

• Refactor DQP into components compliant with the OGSA-DAI framework - no DQP-specific services.
• Avoid inter-service transfers if data resources are exposed on the same server as DQP.
• Expanded support for
  • SQL-92.
  • Data types.
  • User defined functions.
  • Query optimisation.
• Collaborate with AIST on DQP extensions for XML and OGSA-WebDB.

Scalability and robustness

• Investigate our current state
  • Where do the boundaries lie?
  • Computationally intensive and/or data intensive requests.
  • Find out how others measure concurrent usage.
• Robustness
  • How long can we run without memory leaks?
  • How do we cope with many concurrent queries.
• Speed
  • Can we be faster with better serialisation of data?
  • Investigate effects of number of cores, CPU speeds, memory sizes, heap sizes, number of concurrent requests, queue sizes, pipe sizes,...
• Document weaknesses and how to avoid or control or offset these.
• Design new APIs and components.

Demonstrations

• OGSA-DAI components and tools demonstrating its applicability to real world data access and integration scenarios.

OGSA-DAI 4.0

• A Java 1.6 compliant release of OGSA-DAI with bug fixes and refactoring:
  • Clean core APIs and configuration.
  • Aim to preserve backwards compatibility for existing third-party components.
  • Consistent service WSDL across flavours.

3 month roadmap to December 2009

• Release of OGSA-DAI 3.2.1 bug fix release.
• Release of SAGA file activities extension pack.
• Participation in All Hands 2009 and IEEE 2009 in Oxford, UK.

6 month roadmap to March 2010

• Release of OGSA-DAI WS-DAIR 2.0 compliant with the final OGF WS-DAIR recommendations.
• Participation at OGF-28 in Munich.
• Release of OGSA-DAI 4.0.